Mollusca
Classification
-
Animalia
- Mollusca
Abadieceras Collignon, 1950
Abathoceramus Heinz, 1932
Abbadia Bourguignat, 1883
Abbreviatiana Bourguignat, 1881
Abiella Ragosin, 1933
Abrancha van Hasselt, 1824
Abranchus Boïé, 1824
Abtychus Waagen, 1870
Acaenoplax Sutton, Briggs, Siveter & Siveter, 2001
Acalliana Bourguignat, 1881
Acamas de Montfort, 1808
Acame Reichenbach, 1828
Acanthis de Serres, 1816
Acanthocardium Roemer, 1868
Acanthochitontypus Bergenhayn, 1930
Acantholeaia Almeida, 1950
Acanthophiceras Diener, 1916
Acanthopleuratypus Bergenhavn, 1930
Acanthopupa Wenz, 1914
Acanthopus Münster, 1839
Acanthosphaerites Rollier, 1922
Acanthotropis Haas, 1939
Acarda Rafinesque, 1815
Acardia Berthold, 1827
Acavella Jousseaume, 1894
Acerosiana Bourguignat, 1880
Acevina
Achanomphalus Dybowski & Groch-malicki, 1925
Achantochila Pruvot-Fol, 1935
Achatenilla Swainson, 1840
Achatinellodes Ancey, 1885
Achatinelloides Nevill, 1878
Achatinigenus Renier, 1804
Achatinus de Montfort, 1810
Achatium Link, 1807
Achelois de Montfort, 1808
Acheloites Schinz, 1822
Acheolis Paetel, 1875
Achilleia Renz, 1913
Achoanomphalus Lindholm, 1909
Acicularia Monterosato, 1884
Aciculariana Bourguignat, 1884
Acidochilus Cossmann, 1909
Aciedentata Dybowski & Grochmalicki, 1923
Acinophorus Tryon, 1884
Acinulus Seguenza, 1903
Acinus Monterosato, 1884
Acionaea Deshayes, 1830
Acione Gray, 1840
Acionea Paetel, 1875
Aclisoides Donald, 1898
Acmetrigonostoma Paetel, 1875
Acmopupa Böttger, 1889
Acolus Jukes-Browne, 1913
Acosmiana Fagot, 1883
Acrenellus Paetel, 1875
Acroceramus Heinz, 1932
Acrochasma Reuss, 1860
Acrochordiceroides Strand, 1929
Acroeuxina Böttger, 1877
Acrophaedusa Böttger, 1877
Acrophlyctis Cossmann, 1888
Acrostele Wenz, 1925
Acrostoma Brot, 1870
Acrotrema Cossmann, 1889
Acroxiana Bourguignat, 1884
Actaeon Oken, 1815
Actelois Strand, 1928
Actinaria Pfeiffer, 1855
Actindoris Gray, 1847
Actinobalus Schaufuss, 1869
Actinobolus Mörch, 1853
Actinobulus Paetel, 1890
Actinoceratites Schrammen, 1928
Actinochlamys Rovereto, 1898
Actinodontophora Ichikawa, 1951
Actinoglypta Agassiz
Actinomya Mayer, 1870
Actinopecten Bonarelli, 1951
Actinophorus Meek, 1864
Actinota Hartmann, 1840
Actinotheca Xiao & Zhou, 1985
Actonia Monterosato, 1884
Aculea Perry, 1810
Aculeatiana Caziot, 1910
Acura Adams, 1855
Acutana Fagot, 1891
Acutiana Fagot, 1883
Acutianus Caziot, 1910
Acutitheca Yue, 1984
Acutoplax Cotton & Weeding, 1939
Acylus Goldfuss, 1895
Acyonaea Deshayes, 1830
Acyonea de Blainville, 1827
Acyrogonia Mabille & Rochebrune, 1889
Adalfina Caziot, 1910
Adamiana Bourguignat, 1881
Adamsenida Habe, 1952
Adamsiellops Henderson & Bartsch, 1920
Adansonia Pallary, 1902
Adelodonta Ancey, 1880
Adelomorpha Tapparone-Canefri, 1886
Adelostoma Smith, 1885
Ademitrella Ludbrook, 1941
Adenodia Dall, 1920
Adjua Chaper, 1885
Adolfina Caziot, 1910
Adolphia Stolley, 1907
Adontophoria Benson, 1928
Adranaria Munier-Chalmas, 1876
Adriaca Westerlund, 1884
Adriaria Pallary, 1917
Adriatica Westerlund, 1901
Adriella Thiele, 1893
Adspergillum Menke, 1830
Adversaria Lindholm, 1925
Adyshevitheca Mambetov, 1979
Adzvaella Kanev, 1983
Aega Hartman, 1881
Aegaea Oppenheim, 1890
Aegericiana Locard, 1889
Aegionia Cossmann, 1921
Aegle Oken, 1815
Aeglia Swainson, 1840
Aegophthalmus Hesse, 1910
Aegyrus Paetel, 1875
Aemoria Beck, 1847
Aenigma Koch, 1846
Aenigmigulella Pilsbry & Cockerell, 1933
Aenocephalus Herrmannsen, 1846
Aeolia Anon., 1817
Aeolica Scudder, 1882
Aequinoctia Lindholm, 1925
Aeqviyoldia Soot-Ryen, 1951
Aethalion Herrmannsen, 1846
Aethocera Teichert & Glenister, 1954
Aethocola Iredale, 1915
Aetomoceras Hyatt, 1900
Aferulus Martens, 1897
Afriboysidia Zilch, 1939
Afripupa Pilsbry & Cooke, 1920
Afripupilla Pilsbry, 1921
Afroparreysia Haas, 1936
Afropunctum Haas, 1934
Afrorhytida Möllendorff, 1903
Afroveronicella Forcart, 1954
Agalma Martens, 1860
Aganides de Montfort, 1808
Aganis von Buch, 1834
Agathina Rafinesque, 1831
Agatina Rafinesque, 1831
Agglutinans Wagner, 1908
Agina Turton, 1822
Aglacostoma Schaufuss, 1869
Aglaia Renier, 1807
Aglaya Schaufuss, 1869
Aglia Gray, 1847
Agraulina Bourguignat, 1858
Agrestiana Caziot, 1910
Agria Matheron, 1878
Agrioicana Fagot, 1891
Aguayodiscus Jaume & Borro, 1946
Aguayotudora Torre & Bartsch, 1941
Aidaroceras Doguzhaeva, 2002
Aidone Adams, 1853
Aimitus Sysoev, 1966
Ajkaia Tausch, 1886
Alabastra Kobelt, 1904
Alaca Böttger, 1911
Alae Swainson, 1840
Alaea Jeffreys, 1830
Alasminota Ortmann, 1914
Alasmodon Sowerby, 1824
Alasmodonta Say, 1819
Alata Thorbiornsen, 1823
Alatites Gesner, 1758
Albanica Böttger, 1878
Albanodelima Wagner, 1924
Albertisia Issel, 1880
Albiana Fagot, 1891
Albinula Sterki, 1892
Albisiana Bourguignat, 1884
Alboceramus Heinz, 1932
Albula Röding, 1798
Alcidia Bourguignat, 1889
Alciope Adams, 1861
Alcyonaria Renier, 1807
Aldanolina Pelman, 1976
Aldanotheca Meshkova, 1974
Aldena Paetel, 1875
Aldrovandium Chiaje, 1844
Aleatelix Iredale, 1941
Algirana Caziot, 1910
Algrus Gregorio, 1884
Alifera Piette, 1891
Alima Carus & Gerstaecker, 1868-, 1875
Alina Récluz, 1842
Alinoclithon Baker, 1923
Alipes Conrad, 1865
Allardia Nicolas, 1898
Allathecidae Rozanov et al., 1969
Allerychiton Dell'Angelo & Oliverio, 1997
Allisma Iredale, 1941
Allixia Cossmann, 1913
Allocardium Hall, 1883
Alloceramus Heinz, 1932
Allogenes Gude, 1911
Allolaemus Pilsbry, 1895
Alloptyx Pilsbry, 1953
Allovirgatites Neaverson, 1925
Allportia Tenison-Woods, 1877
Alocinma Annandale & Prashad, 1919
Aloea Sacco, 1886
Alostoma Lycett, 1850
Aloysia Issel, 1907
Alpecanusiana Locard, 1889
Alpheiceras Cossmann, 1900
Alpidelima Wagner, 1924
Alpinoceras Lange, 1941
Alsacia Cossmann, 1922
Alsatia Andreae, 1884
Alsobia Bourguignat, 1858
Alstadenites Reeside, 1932
Altaicola Lindholm, 1927
Altaicornus Sysoyev, 1970
Altavillia Gregorio, 1908
Aluta Jekelius, 1932
Alvaniella Sacco, 1895
Alvearella Lowe, 1852
Alveolus Herrmannsen, 1846
Alycaeodonta Etheridge, 1879
Alyrus Simroth, 1907
Amalthites Swainson, 1835
Amanda Macnae, 1954
Amandana Fagot, 1891
Amastrella Sykes, 1900
Amathinoidas Thiele, 1929
Amathis Adams, 1861
Amathonta Rafinesque, 1815
Amathusia Philippi, 1887
Ambages Gude, 1912
Ambersites Buckman, 1921
Ambigolimax Pollonera, 1887
Ambipupina Iredale, 1937
Amblamodon Rafinesque, 1831
Amblasmodon Rafinesque, 1831
Amblyacum Kobelt, 1892
Amblybelus Naef, 1922
Amblyceras Glocker, 1842
Amblyoxyites Buckman, 1922
Amblyspira Dall, 1896
Ambullina Palmer, 1937
Amcleceras van Hoepen, 1942
Amenixesta Iredale, 1941
Americana Clessin, 1879
Ameroda Rafinesque, 1820
Amesoda Rafinesque, 1820
Amesodon Agassiz, 1846
Amethistina Paetel, 1875
Ametistina Schinz, 1825
Ametoceras Schindewolf, 1935
Amia Gistl, 1848
Amiculatypus Bergenhayn, 1930
Amimonus de Montfort, 1808
Amithaon Rafinesque, 1815
Ammimone Reichenbach, 1828
Ammoceratita Fischer de Waldheim, 1834
Ammonceratites Morton, 1841
Ammonicerina Costa, 1861
Ammonisiana Fagot, 1884
Ammonita Gray, 1821
Ammonoceras Lamarck, 1822
Ammonoceratita de Blainville, 1824
Ammonocerina Dall, 1927
Ammonocerus King, 1844
Ammouites Mathéron, 1878
Amnicana Fagot, 1892
Amnicusiana Locard, 1889
Ampezzanilda Bandel, 1995
Amphibina Hartmann, 1821
Amphibinea Pallary, 1904
Amphibulimigenus Renier, 1804
Amphibulimus de Montfort, 1810
Amphicardium Martens, 1880
Amphicoela Scudder, 1882
Amphicoelina Haas, 1933
Amphiconophora Suter, 1909
Amphidoxa Albers, 1850
Amphikonophora Suter, 1897
Amphiopomorphites Bronn, 1836
Amphipomorphites Paetel, 1875
Amphirea Rafinesque, 1815
Amphiscopus Westerlund, 1887
Amphithaea Dall, 1902
Amphithalimus Anon., 1867
Amphitridea Paetel, 1875
Amphitridia Paetel, 1875
Amphitritidea Krøyer, 1847
Amphitritidia Anon., 1847
Amphitrorsus Kimakowicz, 1890
Amphoreopsis Crick, 1904
Amphoroceras Ulrich & Foerste, 1935
Amphorotheca Pillet & Beaulieu, 1995
Amphrisus Rafinesque, 1815
Ampithaea Leach, 1852
Amplexis Brown, 1827
Amplexites Swainson, 1835
Ampliata Wagner, 1907
Amplovalvata Yen, 1952
Ampullacera Agassiz, 1846
Ampullariella Raspail, 1909
Ampullarigenus Renier, 1804
Ampullaroides Gray, 1847
Ampulloidea d'Orbigny, 1840
Ampulloides d'Orbigny, 1842
Ampullopsis Repelin, 1902
Ampulloscalites Wenz, 1938
Amydaicornus Valkov, 1970
Amydala Gray, 1847
Amygdalonaias Crosse & Fischer, 1894
Amymone Agassiz, 1846
Amymonus Herrmannsen, 1846
Amysca Paetel, 1875
Amyxa Troschel, 1852
Anabaricornus Valkov, 1970
Anabrahmaites Yabe & Shimizu, 1924
Anacardioceras Buckman, 1923
Anacosmoceras Stoll, 1934
Anadarca Finlay, 1926
Anadaria Kobelt, 1910
Anadeninus Simroth, 1912
Anadontella Betekhtina, 1987
Anadromus Sandberger, 1871
Anadura Paetel, 1890
Anafossarus Iredale, 1936
Anaguadryceras Shimizu, 1935
Anakosmoceras Buckman, 1924
Anapa Gray, 1847
Anaplanulites Buckman, 1922
Anaplomya Krauss, 1843
Anaplophora Healey, 1908
Anaptychus Oppel, 1856
Anapuzosia Matsumoto, 1954
Anastephanites Spath, 1930
Anastomopsis Sandberger, 1871
Anatasia Gistl, 1848
Anatinigenus Renier, 1804
Anaulax de Roissy, 1805
Anaulox Hörnes & Auinger, 1880
Ancaeus Adams, 1869
Anceyiella Mabille, 1886
Ancheilotheca Qian Yi, 1978
Anchistoma Mörch, 1852
Ancile Herrmannsen, 1846
Ancilia Deshayes, 1830
Ancillarites Krueger, 1823
Ancilligenus Renier, 1804
Anclustoma Hall, 1867
Ancolorhynchus Cossmann, 1902
Ancomena Baker, 1931
Anculopsis Yen, 1947
Ancyclostoma Scudder, 1882
Ancylorhynchus Wanner, 1902
Andamanica Wagner, 1905
Andrarion Godwin-Austen, 1912
Androiavites Collignon, 1936
Andrussella Korobkov, 1954
Andrussovia Dybowski & Grochmalicki, 1917
Aneityopsis Grimpe & Hoffmann, 1924
Aneityopsisis Grimpe & Hoffmann, 1924
Anelasma Cossmann, 1889
Anelasmodon Agassiz, 1846
Anelasmodonta Herrmannsen, 1846
Anellum Carpenter, 1856
Anevda Palmer, 1940
Anfilla Gregorio, 1885
Angaricus Suter, 1913
Angarodon Ragozin, 1935
Angatubia Mendes, 1962
Angellum Miller, 1878
Angeloteuthis Lang, 1928
Angigaster Pilsbry & Hirase, 1904
Angina Berthold, 1827
Angiostoma Agassiz, 1846
Angistoma Fischer, 1883
Angkorella Delpey, 1941
Anglicana Fagot, 1891
Angolaites Spath, 1932
Angrandiella Ancey, 1886
Anguidactylites Buckman, 1926
Anguinaria Schumacher, 1817
Angulata Wagner, 1905
Angulatomitrella Sacco, 1890
Angulicervix Pilsbry, 1933
Angulidens Pilsbry & Cooke, 1914
Angulina Kobelt, 1904
Angulochiton Hoare, 2001
Angulomitrella Suter, 1913
Angulorbis Yen, 1944
Angusticornidae
Angusticornus Sysoev, 1968
Angustiscala de Boury, 1909
Angustispira Pelseneer, 1912
Angustivestis Pilsbry, 1919
Angustula Sterki, 1888
Anisancylus Pilsbry & Vanatta, 1924
Anisochiton Fischer, 1885
Anisoloboceras Trueman, 1918
Anisoloma Ancey, 1901
Anisoperna Iredale, 1939
Anisorhynchus Meek, 1871
Anisorhyncus Conrad, 1874
Anmicola Clessin, 1885
Anneastrum Bourguignat, 1883
Annularella Henderson & Bartsch, 1920
Annularex Bartsch, 1941
Annularisca Henderson & Bartsch, 1920
Annularita Henderson & Bartsch, 1920
Annularodella Torre & Bartsch, 1941
Annularodes Henderson & Bartsch, 1920
Annularodisca Torre & Bartsch, 1941
Annularops Henderson & Bartsch, 1920
Annularosa Henderson & Bartsch, 1920
Annulicaulis Simroth, 1913
Annuliconchus Vinn, 2006
Annulifer Cossmann, 1921
Anodea Scudder, 1882
Anodontigenus Renier, 1804
Anolax Brongniart, 1823
Anolkoleiites Buckman, 1926
Anomalia Megerle, 1837
Anomalina Mousson, 1842
Anomiea Herrmannsen, 1846
Anomigenus Renier, 1804
Anomoptychus Douvillé, 1906
Anomphala Westerlund, 1886
Anomphalodes Tomlin, 1929
Anonica Oken, 1815
Anoplax de Serres, 1829
Anoplomya Krauss, 1850
Anoplophoria Zeller, 1908
Anops d'Orbigny, 1836
Anostomopsis Sandberger, 1871
Anostylus Cossmann, 1896
Anotus Westerlund, 1883
Anphibina Picaglia, 1893
Ansata Herrmannsen, 1846
Antalium Herrmannsen, 1846
Antediplodon Marshall, 1929
Anteglosia Vokes, 1948
Anthiope Rafinesque, 1815
Anthracochiton Rochebrune, 1883
Anthraconauta Pruvost, 1930
Anthracoptera Salter, 1863
Anthracosia King, 1844
Anthracosphaerium Trueman & Weir, 1946
Anthronacus Rafinesque, 1815
Anticalyptraea Quenstedt, 1867
Antichondrus Lindholm, 1925
Antidrymaeus Germain, 1907
Antimelania Fischer & Crosse, 1892
Antinous Robson, 1914
Antiquatheca Missarzhevskii, 1974
Antitragus Oberwimmer, 1931
Antivertigana Fagot, 1891
Antychus von Meyer, 1830
Aparhais Beck, 1847
Apatetes Gude, 1914
Apedogyria Buckman, 1899
Aperostomops Pilsbry, 1935
Apertaxis Pilsbry, 1953
Apertiana Caziot, 1910
Apex Martens, 1860
Aphallarion Pilsbry & Vanatta, 1896
Aphanistylus Fischer, 1884
Aphanotylus Brusina, 1893
Aphrodita Leach, 1839
Aphrodite Lea, 1834
Aphroditha Paetel, 1875
Aphrodithe Paetel, 1875
Aphroditiceras Mahmoud, 1955
Aphyllites Mojsisovics, 1882
Apicinana Fagot, 1891
Apilas Gregorio, 1886
Apiotropis Meek, 1876
Aplacophora
Aplodona Rafinesque, 1815
Aplostoma Moquin-Tandon, 1856
Aplus Gregorio, 1885
Apocerotus Scudder, 1882
Apoecus Möllendorff, 1902
Apogogus Gistl, 1848
Aposphinctoceras Neaverson, 1924
Apostrophia Ehrmann, 1927
Appendiculata Ficinus, 1867
Appias Paetel, 1875
Appius Menke, 1830
Apricana Caziot, 1908
Aprosphyma Wagner, 1920
Apscheronia Andrusov, 1903
Aptichus Crosse, 1867
Aptycha Meek, 1863
Aptychoteuthis Reynès, 1879
Aptychus von Meyer, 1831
Aptycoteuthis Reynès, 1879
Aptycus Deshayes, 1845
Apula Böttger, 1909
Aquistratites Buckman, 1924
Arabivitrina Thiele, 1931
Aradana Suter, 1913
Arathecus
Araucania Parodiz, 1954
Araxiites Dorodnova, 1993
Arcacites Schlotheim, 1820
Arcado Bruguière, 1789
Arcaspidoceras Jeannet, 1951
Archaegopis Wenz, 1914
Archaeodoris Smith-Kilwinning, 1900
Archaeonassa Fenton & Fenton, 1937
Archaeoplecta Gude, 1911
Archaeoxesta Neuenhaus, 1909
Archaeozonites Sandberger, 1875
Archanodon Howse, 1878
Archelix Albers, 1850
Archicoceratites Schrammen, 1934
Archigenus Renier, 1804
Archimedes Paetel, 1875
Archipelagica Böttger, 1878
Architaea Monterosato, 1875
Architea Costa, 1869
Archonta de Montfort, 1810
Archygromia Pfeffer, 1929
Archytaea Monterosato, 1875
Archytea Kobelt, 1887
Arcicardium Fischer, 1887
Arcidactylites Buckman, 1926
Arcinellina Bronn, 1849
Arcites Martin, 1809
Arclites Schläpfer, 1821
Arcomyopsis Zittel, 1895
Arcoptera Bittner, 1895
Arcotia Stoliczka, 1868
Arctoa Herrmannsen, 1846
Arctocerodes Strand, 1929
Arctolimax Westerlund, 1894
Arctomphalus Tolmachoff, 1926
Arcturus Gray, 1839
Arcuaceras Herzer, 1902
Arcuatobeccus Shimansky, 1947
Arcuatomitrella Sacco, 1890
Arcuceras Potonié, 1929
Arealiana Bourguignat, 1881
Arenaria Megerle, 1811
Areocuculla Cossmann, 1923
Aretinula Thiele, 1934
Argatheca Missarjevsky, 1989
Argina Gray, 1842
Argivora Lesueur, 1825
Argoceras Steinmann, 1925
Argonautella Steinmann, 1925
Argonautina Steinmann, 1925
Argonautites de Montfort, 1802
Argutarpites Buckman, 1923
Argvethites Rouchadzé, 1933
Argyrectenites Paetel, 1875
Argyroconchites Herrmannsen, 1852
Argyroctenites Herrmannsen, 1852
Arhaeozonites Suklje, 1930
Arhouriella Geyer & Streng, 1998
Aricia Gray, 1837
Arietina Conrad, 1853
Arigoina Caziot, 1910
Arionellus Paetel, 1875
Aristoceramus Heinz, 1932
Armandia Ancey, 1883
Armandiella Ancey, 1901
Armiella Pilsbry, 1911
Arnioceratoides Spath, 1922
Arnoldia Mayer, 1887
Arnoldina Hannibal, 1912
Arnouldia Bourguignat, 1890
Arnouldiana Locard, 1890
Arpadicardium Eberzin, 1947
Arrhaphoceras Whitehouse, 1927
Arrosiana Locard, 1890
Arsenia Monterosato, 1891
Artaeon Crosse, 1884
Artecallosa Wagner, 1908
Artemiderma de Blainville, 1818
Artemidoderma Agassiz, 1846
Artemon Megerle
Artemonopsis Germain, 1908
Arthemiderma Poli, 1795
Arthemidoderma Agassiz, 1846
Arthronotus Rafinesque, 1815
Arthropteron Rochebrune, 1904
Arthuria Dall, 1882
Articulipoma Bartsch, 1946
Artusius Gray, 1852
Arytaena Oken, 1817
Arytene Oken, 1815
Arythaena Deshayes, 1830
Aschera Pallary, 1939
Asga Gregorio, 1885
Asianites Ruzencev, 1933
Asijatheca Mambetov, 1981
Asiolus Gregorio, 1890
Askoloboceras van Hoepen, 1944
Asmidia Mörch, 1853
Asmunda Dall & Bartsch, 1904
Aspalima Iredale, 1929
Aspergilligenus Renier, 1804
Aspergillum Agassiz, 1846
Aspersiana Caziot, 1908
Asphalium Rafinesque, 1815
Aspidelus Morelet, 1883
Aspiditella Strand, 1929
Aspidites Waagen, 1895
Aspidotomium Degner, 1932
Asselberghsia Maillieux, 1931
Assemannia Hedley, 1917
Assiminella Monterosato, 1906
Assiminopsis Habe, 1942
Assula Schumacher, 1817
Astatoceramus Heinz, 1932
Astenothyra Annandale & Prashad, 1921
Asterichnites Brown & Vokes, 1944
Asteroconites Teller, 1885
Asthenodonta Whiteaves, 1894
Asticusiana Locard, 1889
Astieria Pavlov, 1891
Astortopis Diener, 1909
Astrodonta Hartmann, 1840
Astylophthalma Menke, 1845
Atahualpa Strebel, 1910
Atalanta Seeley, 1864
Ataxas Pilsbry, 1902
Ataxellus Dall, 1912
Ataxus Albers, 1850
Atdabanithes Meshkova, 1974
Ateriana Locard, 1889
Athlenia Bartsch, 1946
Athletoceramus Heinz, 1932
Athlodactylites Buckman, 1927
Atlantica Wagner, 1897
Atlantidea Pilsbry, 1922
Atlantis Anon., 1819
Atlantolimax Dall, 1916
Atlas Lesueur, 1817
Atollites Zuber, 1910
Atopa Albers, 1850
Atoyac Baker, 1928
Atracta Scudder, 1882
Atractilites Link, 1807
Atractoconcha Gistel, 1868
Atractophaedusa Ehrmann, 1927
Atractostoma Sayn, 1932
Atractus Agassiz, 1839
Atramentarius Buckland, 1836
Atrichoconcha Bartsch, 1942
Atrocyclus Iredale, 1941
Atropidina Lindholm, 1906
Atropis Pease, 1871
Atthila Bergh, 1900
Attica Böttger, 1877
Augustaia Ruzicka, 1950
Aulaca Westerlund, 1902
Aulachalia Sacco, 1893
Aulacobelus Pavlov, 1913
Aulacoceramus Heinz, 1932
Aulacomerella von Huene, 1900
Aulacophora Jeffreys, 1882
Aulacoplerum Philippi, 1899
Aulacopoma Möllendorff, 1897
Aulacopus Pfeffer, 1878
Aulacospira Möllendorff, 1890
Aulacostephanoides Schindewolf, 1925
Aulacotrochrus Cossmann, 1918
Aulacotrochus Cossmann, 1916
Aulanostoma Schaufuss, 1869
Aulapeltoceras Schindewolf, 1925
Aulichnites Fenton & Fenton, 1937
Aulisa Rafinesque, 1815
Auloceras Trautschold, 1866
Aulopea Dunbar, 1920
Auriculigenus Renier, 1804
Auriculites Herrmannsen, 1845
Auriculus de Montfort, 1810
Aurigerus Hyatt, 1900
Auriscalpium Megerle, 1811
Auritesta Pilsbry, 1929
Ausoba Adams, 1853
Australiella Collignon, 1948
Australothecidae
Austrobalea Pilsbry, 1924
Austrocyclus Ancey, 1898
Austroglyphis Cotton & Godfrey, 1934
Austropilula Thiele, 1927
Austrosphenodiscus Olsson, 1944
Austrovoluta Cotton, 1949
Autodetus Lindström, 1884
Autonoella Wenz, 1947
Avakubia Pilsbry, 1919
Avaoceras Ulrich, Foerste, Miller & Unklesbay, 1944
Avardaria Andrussov, 1923
Avarua Baker, 1938
Avellanopsis Roman, 1921
Avenacea Caziot, 1910
Avenaceana Fagot, 1891
Avenionensiana Caziot, 1910
Avenionensis Caziot, 1910
Averna Gistl, 1848
Aversa Hübner, 1810
Aviculina d'Orbigny, 1843
Aviscutum Iredale, 1940
Avoniana Bourguignat, 1881
Awarua Mestayer, 1930
Aximedia Rafinesque, 1820
Axinaeoderma Poli, 1795
Axinoderma Herrmannsen, 1845
Azar Gray, 1840
Azara d'Orbigny, 1842
Azaria Tryon, 1872
Azecastrum Bourguignat, 1858
Azeka Oppenheim, 1890
Azemus Rang, 1829
Babinula Haber, 1932
Baboria Cossmann, 1898
Bacchidium Scudder, 1882
Bactricoptis Pilsbry, 1903
Bactrocoptis Pilsbry, 1903
Baculatoceras Mascke, 1906
Bagenoviella Aksarina, 1968
Baglivia Brusina, 1892
Bahiensis Jousseaume, 1877
Baicaliella Dybowski & Grochmalicki, 1923
Baicalineopsis Dybowski & Grochmalicki, 1913
Baicalinopsis Lindholm, 1927
Baicalocochlea Lindholm, 1927
Baikalia Crosse & Fischer, 1879
Baikaliella Lindholm, 1909
Baizea Bourguignat, 1885
Bajkalia Loerenthey, 1902
Bajocisphinctes Buckman, 1927
Balaea Leach, 1831
Balanocochlis Fischer, 1885
Balantium Children, 1823
Balboaina Farfante, 1943
Balcanica Kennard & Woodward, 1923
Baldra Dall & Bartsch, 1904
Baldwinia Ancey, 1899
Baleastra Pfeiffer, 1856
Baleoclausilia Bielz, 1863
Baleomitra Finlay, 1926
Baleopsina Lindholm, 1924
Balfouria Crosse, 1884
Balinsus Hasselt, 1823
Balioceratites Schrammen, 1934
Baltia Dohm, 1925
Balvites Wedekind, 1914
Bambaganites Hyatt, 1900
Bambanagites Mojsisovics, 1896
Bambasoceras Li, 1984
Banatica Böttger, 1877
Banatoconcha Wagner, 1941
Bania Brusina, 1896
Banneina Stache, 1889
Baphia Gray, 1847
Bapuia Godwin-Austen, 1918
Barassia Jekelius, 1933
Barbala Gray, 1825
Barbarca Dall, Bartsch & Rehder, 1938
Barbata Sowerby, 1839
Barboria Lindholm, 1924
Barbula Deshayes, 1830
Barcinensiana Fagot, 1884
Barclayia Adams, 1875
Bariosta Rafinesque, 1831
Baroda Stoliczka, 1870
Barrella Hedström, 1930
Bartrumella Laws, 1940
Bartschivindex Baker, 1943
Baryana Locard, 1889
Baryosta Agassiz, 1846
Bashkirites Librovitch, 1947
Basidentata Dybowski & Grochmalicki, 1923
Basileostylus Haas, 1935
Basleonautilus Ruzhentzev & Shimanskii, 1954
Bassaniceras Fucini, 1929
Bastorotia Jousseaume, 1884
Batavusiana Locard, 1889
Bathmoceramus Heinz, 1932
Bathmopterus Kirk, 1928
Bathonella Yen, 1948
Bathyacria Agassiz
Bathyaxis Ancey, 1887
Bathyspira Aguayo & Borro, 1946
Battistiana Pallary, 1920
Beania Dall, 1879
Beaumieriana Pallary, 1926
Beccariana Locard, 1890
Becheiceras Trueman, 1918
Becheoceras Dacqué, 1934
Beddomea Nevill, 1878
Behemoth Buckman, 1922
Beilania Preston, 1913
Belangeria Fischer, 1880
Belemnita Fleming, 1828
Belemnitea Herrmannsen, 1846
Belemnoconus Naef, 1922
Belemnon Gabb, 1861
Belemnosepia Buckland, 1835
Belemnosis Edwards, 1849
Belemnus Fischer, 1817
Bellacepolis Baker, 1943
Bellerophorina Gray, 1847
Bellerophus de Blainville, 1825
Bellrhagada Iredale, 1938
Bellula Wagner, 1907
Belocaulus Hoffmann, 1925
Beloceramus Heinz, 1932
Belonarion Pilsbry, 1919
Belonesia Baker, 1938
Belonis Hartmann, 1840
Belopterella Naef, 1921
Beloteuthis Münster, 1843
Belusiana Bourguignat, 1884
Bembix de Koninck, 1844
Bembyxium Cossmann, 1921
Benedictites Buckman, 1924
Beogradica Pavlovic, 1927
Berenguiereana Caziot, 1910
Berenguieriana Locard, 1889
Berenguieriane Caziot, 1910
Bererella Collignon, 1948
Bermudezia Torre & Bartsch, 1941
Bermudezsiphona Torre & Bartsch, 1941
Bermudia Ancey, 1887
Bernayia Cossmann, 1887
Bernicia Cox, 1927
Beroides
Berpolis Leach, 1825
Berriasibelus Delattre, 1952
Berryidium Grimpe, 1931
Besairiei Heinz, 1932
Besairieia Heinz, 1932
Besselsoceras Shimizu & Obata, 1935
Beushausenella Dahmer, 1936
Biamora Iredale, 1941
Biangulatus Dybowski & Grochmalicki, 1925
Biangulaxis Pilsbry, 1907
Biapholus Leach, 1847
Biasaloceras Drushchitz, 1953
Biauris Cossmann, 1921
Bicarinatiana Fagot, 1892
Biconia Swainson, 1840
Bicorium Meyer, 1880
Bicornia May, 1929
Bicornucaprina Hofmann, 1912
Bidensiana Fagot, 1891
Bidleya Möllendorff, 1901
Bifrontia Deshayes, 1832
Bigibbosa Böttger, 1878
Bihippurites Futterer, 1896
Bikosmoceras Buckman, 1926
Biligulitheca Qian, Xie & He, 2001
Bilinassa Jousseaume, 1894
Billingsia Miller, 1889
Bilobaria Pelseneer, 1911
Bineurus Simpson, 1900
Binghami Brown, 1827
Binodata Böttger, 1877
Binotata Roemer, 1891
Binovoluta Schaufuss, 1869
Binvoluta Schlüter, 1838
Biopholeus Herrmannsen, 1846
Biopholius Agassiz, 1846
Biplicatiana Caziot, 1910
Birostrites Lamarck, 1819
Birostrum Desmoulins, 1827
Bisiphites Oken, 1815
Bisiphytes Montfort, 1808
Bitomus de Montfort, 1810
Bitorquata Böttger, 1877
Bittinella Dall, 1924
Bittnerella Dall, 1898
Bittnerites Kittl, 1903
Bitubulites Blumenbach, 1803
Bivalvia Linnaeus, 1758
Bivoniopsis Sacco, 1896
Blainvilla Chiaje, 1829
Blainvillea Dall, 1898
Blainvillia Hupé, 1854
Blanckenhornia Teppner, 1922
Blandia Chitty, 1857
Blauneriana Caziot, 1910
Blayneyella Preston, 1914
Blephalum Rafinesque, 1814
Bloyetia Bourguignat, 1889
Bodmania Miller & Faber, 1894
Boehmiceramus Heinz, 1932
Boehmiceras Grigorieva, 1938
Boettgerova Frankenberger, 1910
Bogdoites Kittl, 1903
Bohemina Lyashenko, 1969
Boistelia Cossmann, 1909
Bolboceras Fischer de Waldheim, 1844
Bolbotina Herrmannsen, 1846
Bolenensiana Fagot, 1883
Bolitheca Marek & Isaacson, 1992
Bollenensiana Caziot, 1910
Bollenentiana Caziot, 1910
Bollingeria Forcart, 1940
Boloea Dyson, 1850
Bolteniana Bourguignat, 1889
Bombix Paetel, 1875
Bombixinus Paetel, 1875
Bombycinus Agassiz, 1846
Bonairea Baker, 1924
Bonannius Dautzenberg, 1900
Boncavailia Roman & Mazeran, 1920
Bonella Eliot, 1913
Bonnanius Jousseaume, 1900
Bonnellia Desmarest, 1858
Bontia Gray, 1847
Boogina Thiele, 1913
Boopsis Pierantoni, 1923
Borealicornus Sysoev, 1968
Boridium Bergh, 1908
Boriquena Baker, 1941
Bornellopsis O'Donoghue, 1929
Boscovicia Crosse, 1885
Bosempra Brown, 1844
Boskavicia Dautzenberg, 1903
Boskoviacia Brusina, 1884
Boskoviciae Lorenthey, 1895
Bosnica Westerlund, 1884
Bosphoricardium Eberzin, 1947
Bostrychopteron Paetel, 1875
Bostrychopterum Agassiz, 1846
Botteria Brusina, 1904
Bouireria Kobelt, 1897
Bouregregia Alberti, 2000
Bourguignatia Giraud, 1885
Bourya Raspail, 1909
Bouryia Cossmann, 1888
Bovillina Dall, 1924
Boycottia Tomlin, 1931
Boyssiana Fagot, 1891
Brachelixella Sacco, 1890
Brachichlanis Carpenter, 1861
Brachyanodon Crosse & Fischer, 1894
Brachychlamis Bronn, 1863
Brachychlamys Gray, 1840
Brachychlanys Pruvot-Fol, 1933
Brachyclanis Ehrenberg, 1831
Brachydonta Schlüter, 1838
Brachylanis O'Donoghue, 1929
Brachyomphalus Dollfus, 1916
Brachypus Guilding, 1828
Brachypyrgula Polinski, 1929
Brachypyrgulina Haas, 1955
Brachyspira Pfeiffer, 1855
Brachystoma Gardner, 1876
Bradicardia Loriol, 1891
Brandaris Rafinesque, 1815
Branerillus Kobelt, 1913
Brannerillus Hannibal, 1912
Bransoniidae Pojeta & Runnegar, 1976
Brasilennea Maury, 1934
Brasilina Buckman, 1899
Brasilotethys Ihering, 1915
Braunsella Buckman, 1904
Braunsia Buckman, 1902
Braunsina Buckman, 1902
Brazaturia Stenzel, 1935
Braziera Brazier, 1883
Brazierella Baker, 1941
Brazzea Germain, 1909
Brebissoniana Locard, 1889
Brephyllium Agassiz, 1846
Brephyllum Paetel, 1875
Brevilabiatus
Brevipedella Pilsbry, 1903
Brevisiana Fagot, 1892
Brevitheca Marek, 1967
Breynioceras Foerste, 1929
Bria de Boury, 1891
Briandiana Bourguignat, 1881
Briareites Buckman, 1921
Briartia Fischer, 1885
Brifa Gregorio, 1930
Brittsoceras Miller, 1949
Brocchites Finlay, 1926
Brochus Brown, 1827
Brocktonia Iredale, 1915
Broeckia Koninck, 1885
Brongus Gregorio, 1885
Brotella Rovereto, 1899
Brotiana Bourguignat, 1881
Brownia d'Orbigny, 1841
Brusinaela Andrussov, 1912
Brusinaella Andrussov, 1912
Brusinofuchsia Dybowski & Grochmalicki, 1917
Bruzzaea Paetel, 1890
Bucanotheca
Bucarda Rafinesque, 1815
Bucardia Schumacher, 1817
Buccardites Schlotheim, 1813
Buccimitra Harris, 1895
Buccina Deshayes, 1830
Buccinarius Duméril, 1806
Buccinatrix Cragin, 1893
Buccinella Thiele, 1912
Buccinigenus Renier, 1804
Buccinites Gesner, 1758
Buccinocochlea Herrmannsen, 1846
Buccinoidiana Bourguignat, 1884
Buccinola Strand, 1928
Buccinomitra Cossmann, 1901
Buccinula Hübner, 1810
Buccinulus Adams, 1854
Buccinus Gray, 1847
Buccodus Deshayes, 1839
Buchites Mojsisovics, 1893
Buckmaniceras Crickmay, 1930
Budmania Brusina, 1897
Buettnerella Simroth, 1910
Buettneria Simroth, 1888
Buffo de Montfort, 1810
Bufo Agassiz, 1846
Bugesia Paladilhe, 1866
Bulimigenus Renier, 1804
Buliminidius Heude, 1890
Bulimopsis Bowdich, 1822
Bulina Lesson, 1833
Bulinies Caziot, 1903
Bullacites Schlotheim, 1820
Bullaea Brown, 1827
Bullapex Haas, 1950
Bullea de Blainville, 1825
Bullearius Duméril, 1806
Bullidium Meckel, 1813
Bulligenus Renier, 1804
Bullinia Rafinesque, 1815
Bullinula Sowerby, 1839
Bullinus Fabricius, 1823
Bullites Schlotheim, 1813
Bulloideus Simpson, 1900
Bullula Agassiz, 1846
Bulnaria Mittre, 1850
Bunodus de Blainville, 1817
Bunyerichnus Glaessner, 1969
Burgensteinia Bourguignat, 1880
Burgersteinia Bourguignat, 1882
Burmochloritis Godwin-Austen, 1920
Bursiris Gray, 1842
Bursirus Paetel, 1875
Burtonilla Smith, 1904
Burtopsis Bourguignat, 1889
Burungaella Preston, 1914
Buscula Simroth, 1907
Businis Paetel, 1875
Busiris Risso, 1826
Butonius Martin, 1933
Bysomia Paetel, 1875
Byssomia Fleming, 1822
Byssomya Schinz, 1822
Bythoceras Moore, 1898
Caclarina Servain, 1891
Cacophona Adams, 1856
Cadium Link, 1807
Caecalium Fleming, 1822
Caecilianopsis Pilsbry, 1907
Caecinella Bergh, 1870
Caelatiana Caziot, 1910
Caelogonia Gray, 1851
Caelopoma Paetel, 1875
Caenatoria Pilsbry, 1895
Caesarella Pfeffer, 1929
Caillaudia Bourguignat, 1883
Caillaudiana Bourguignat, 1880
Caladacna Andrusov, 1917
Calamara Gray, 1821
Calana Gray, 1847
Calcara Tryon, 1884
Calcaraea Récluz, 1868
Calcarella Souleyet, 1850
Calcariclavis Lindholm, 1924
Calceola Swainson, 1840
Calceolaria Griffith & Pidgeon, 1834
Calceolina Adams, 1863
Calcitheca Galperova, 1981
Caldivitrina Connolly, 1930
Calerus Diener, 1926
Caliagaleodea Clark, 1942
Calidivitrina Pilsbry, 1919
Californites Hyatt & Smith, 1905
Calipeopsis d'Orbigny, 1842
Calipyrgula Pilsbry, 1934
Calirrhoa Paetel, 1875
Calliarca Conrad, 1866
Callicardia Conrad, 1875
Callicochlia Paetel, 1875
Callinina Thiele, 1931
Calliopsis Wenz, 1923
Calliostomaphotinula Strebel, 1908
Callipeopsis Paetel, 1875
Callirhoe Montfort, 1808
Calliroe Herrmannsen, 1846
Callirrhoa Herrmannsen, 1846
Calliscapha Swainson, 1840
Callisteuma Tomlin, 1929
Callistoceramus Heinz, 1932
Callistocharis Pilsbry, 1900
Callistochitontypus Bergenhayn, 1930
Callistoderma Poli, 1795
Callistriche Meek, 1865
Callistrichoderma Meek, 1865
Callithea Swainson, 1840
Callitriche Poli, 1791
Callitrichoderma Oken, 1818
Callitrichus Deshayes, 1830
Callitricoderma Poli, 1795
Callizonata Strand, 1928
Callochitontypus Bergenhayn, 1930
Callocochlias Mörch, 1857
Callonema Conrad, 1875
Callopleura Pallary, 1939
Callunea Scudder, 1882
Caloceratites Schrammen, 1928
Calodiona Stefanescu, 1896
Calodonia Pallary, 1916
Calogoniodiscus Pfeffer, 1929
Caloplisma Crosse & Fischer, 1893
Caloromya Tryon, 1884
Calostropha Ancey, 1887
Calotropis Thiele, 1929
Calvertia Bourguignat, 1880
Calymna Hutton, 1884
Calypaeopsis Carpenter, 1864
Calypeopsis Lesson, 1830
Calyptopholas Lamy, 1927
Calyptra Gray, 1847
Calyptracites Krueger, 1823
Calyptraeactaeon Kobelt, 1889
Calyptraeigenus Renier, 1804
Calytra Westerlund, 1885
Camaenopsis Dollfus & Dautzenberg, 1924
Cambieria Bourguignat, 1885
Cambridiidae Horný, 1957
Cambrovitus Mao Zhao, Yu Ping & Qian Yi, 1992
Camelaea Herrmannsen, 1852
Cameronia Bourguignat, 1879
Camerothecidae
Camillus Montfort, 1810
Caminata Fabricius, 1823
Camostraea Deshayes, 1830
Campaspe Bergh, 1863
Campilocerates Fortis, 1778
Campilostylus Collot, 1891
Camponella Bandel, 1995
Camptocephalites Cossmann, 1924
Camptoceramus Heinz, 1932
Campulites Deshayes, 1845
Campulotus Guettard, 1770
Campylaeopsis Sturany & Wagner, 1915
Campylaxis Ancey, 1888
Campylocathaica Andreae, 1900
Campyloceratites Schrammen, 1928
Campylonaus Gray, 1847
Campylosepia Picard, 1899
Campylostylus Sandberger, 1871
Campylotus Herrmannsen, 1846
Campytus Rafinesque, 1815
Camuriana Locard, 1890
Canabina Paetel, 1875
Canalicia Böttger, 1863
Canaliculites Jeannet, 1951
Cancellarigenus Renier, 1804
Cancrites Herrmannsen, 1846
Candela Herrmannsen, 1846
Candellista Iredale & O'Donoghue, 1923
Candidana Caziot, 1910
Candidissima Pallary, 1910
Caniogerus Bronn, 1866
Canoceras Fischer de Waldheim, 1844
Canopus Rafinesque, 1840
Cantabricana Fagot, 1891
Cantantostoma Sandberger, 1842
Canthapleura Guilding, 1840
Canthidomus Swainson, 1840
Canthiopsis Paetel, 1875
Canthisdomus Cossmann, 1889
Canthopsis Agassiz, 1850
Capeloites Lisson, 1937
Capillifera Honigmann, 1906
Capisteria Gray, 1847
Capisterium Herrmannsen, 1852
Capitina Watson, 1934
Caporista Iredale, 1955
Caprella Guilding, 1824
Caprinus Montfort, 1810
Capsaeformis Frierson, 1927
Capsaria Rafinesque, 1815
Capsigenus Renier, 1804
Capsula Schumacher, 1817
Capulella Dall, 1924
Caragolus Monterosato, 1884
Carascalensiana Fagot, 1885
Carasia Jekelius, 1944
Carassa Gistl, 1847
Carcellesia Farfante, 1952
Cardea Whitfield, 1885
Cardiapus d'Orbigny, 1842
Cardiarius Duméril, 1806
Cardigenus Renier, 1804
Cardinea Agassiz, 1842
Cardiodonta Laube, 1867
Cardiolithidae
Cardiolithus Herrmannsen, 1846
Cardiophora d'Orbigny, 1839
Cardiopsis Meek & Worthen, 1861
Cardiostoma Sandberger, 1872
Carditigenus Renier, 1804
Carenrostrina Gregorio, 1894
Cariatis Dohrn, 1880
Carinacomitas Powell, 1942
Carinairoida Souleyet, 1852
Carinaroides Deshayes, ?, 1864
Carinatiana Fagot, 1891
Carinifera Carpenter, 1864
Carinitheca Sysoev, 1968
Carinoidea Paetel, 1875
Carinolacuna Thiele, 1929
Carinulorbis Yen, 1949
Cariosiana Bourguignat, 1876
Carixiceras Spath, 1925
Carmerope Iredale, 1941
Carmione Gray, 1858
Carneola Westerlund, 1873
Carniolites Arthaber, 1911
Caroletitia Iredale, 1941
Carolinella Pilsbry, 1909
Carolluta Iredale, 1937
Carpenteria Deslongchamps, 1860
Carswellena Iredale, 1931
Carthusiana Kobelt, 1871
Carthusianana Caziot, 1908
Cartissa Herrmannsen, 1846
Carvalhoiana Locard, 1890
Caryates Whitfield, 1891
Caryathis Vélain, 1876
Caryatis Roemer, 1862
Carybditeuthis Vivanti, 1914
Carychiopsis Martens, 1895
Casertiana Fagot, 1892
Casida Agassiz, 1846
Caspa Bosc, 1802
Caspilimax Hesse, 1926
Caspiophaedusa Lindholm, 1924
Casserium Chiaje, 1844
Cassida Brünnich, 1772
Cassidites Krueger, 1823
Cassidoma Cossmann, 1899
Cassidulus Berthold, 1827
Cassigenus Renier, 1804
Cassisoma Rovereto, 1899
Casta Albers, 1850
Castalioides Marshall, 1934
Castellotrachia Iredale, 1933
Castellum Meyer, 1887
Castoroiloceras Bean, 1927
Castroiana Caziot, 1910
Castroianana Caziot, 1910
Catacephalites Buckman, 1922
Catachysium Link, 1830
Catalecanites Spath, 1934
Cathariella Lindholm, 1925
Catillina Gray, 1868
Catilloides Andrussov, 1923
Catinus Adams, 1853
Catozone Perner, 1907
Catubrinia Caneva, 1906
Caucasica Caziot & Margier, 1909
Caucasicana Fagot, 1891
Caucasicola Hesse, 1917
Caucasipupa Pilsbry, 1926
Caucasofixus Lindholm, 1927
Caudiculatus Simpson, 1900
Cauliculus Lindholm, 1925
Cavernolites Marek, 1974
Cavicola Ancey, 1887
Cavipupa Pilsbry, 1934
Cavoscala Whitfield, 1892
Cavostella Laseron, 1954
Cawtoniceras Buckman, 1923
Cearella Ihering, 1906
Cechenoceras van Hoepen, 1941
Ceiba Clark & Durham, 1946
Celaenoteuthis Naef, 1922
Celato Gioeni, 1783
Celekenia Andrusov, 1903
Cemeneleana Caziot, 1908
Cemeneliana Caziot, 1910
Cemori Beddome, 1883
Ceneona Gistl, 1848
Cenia Alder & Hancock, 1848
Cenomanites Haug, 1898
Cenospira Finlay, 1924
Centroceratos Strand, 1929
Centrotheca Salter, 1866
Cepacella Stache, 1880
Cephaloceramus Heinz, 1932
Cephalopoda Cuvier, 1797
Ceramites Herrmannsen, 1846
Ceramus Rafinesque, 1815
Cerastes Poli, 1791
Cerataconcha Cockerell, 1930
Ceratobornia Dall, 1899
Ceratodes Guilding, 1828
Ceratoides Agassiz, 1845
Ceratophora Gistl, 1848
Ceratopilus Cossmann, 1906
Ceratoptilus Bouvier, 1887
Ceratosiphon Gill, 1870
Ceratothecidae
Ceraunites Herrmannsen, 1846
Cercimelania Fischer & Crosse, 1892
Cerealis Paetel, 1875
Cereobullia Melvill & Peile, 1924
Cerericeras Buckman, 1922
Cerethiopsis Anon., 1868
Cerigana Böttger, 1878
Cerites De Lamétherie, 1807
Cerithes Paetel, 1875
Cerithidella Stache, 1889
Cerithiigenus Renier, 1804
Cerithiolum Tiberi, 1869
Cerithites Krueger, 1823
Cerithomelania Moore, 1899
Cerophora d'Orbigny, 1836
Ceropleura Cossmann, 1895
Cerostraca Oliver, 1915
Cerycium Philippi, 1841
Cespitana Caziot, 1908
Cetocine Reichenbach, 1828
Cetocis Montfort, 1808
Cetothrax Iredale, 1949
Chaenodomus Ulrich, 1893
Chaenopea Eastman, 1900
Chaetopleuratypus Bergenhayn, 1930
Chaetopoda Blainville
Chalcedoniceras Buckman, 1922
Chalcocystis Watson, 1934
Chalicopoma Möllendorff, 1894
Chamaeformis Herrmannsen, 1852
Chamaepholas Herrmannsen, 1846
Chambardiana Bourguignat, 1880
Chamepholas Herrmannsen, 1846
Chamigenus Renier, 1804
Chamites Gesner, 1758
Chamostraea Herrmannsen, 1846
Chancelia Hagenmüller, 1885
Chandomirovia Sazonov, 1951
Characebia Stache, 1889
Charactrobia Retowski, 1882
Charadrobia Albers, 1854
Charax Benson, 1859
Charcolleria Olsson, 1942
Charhydrobia Cossmann, 1921
Charis Albers, 1850
Charites Westerlund, 1901
Charlestonoceras Anon., 1927
Charmasseiceras Spath, 1924
Charmassiceras Dacqué, 1934
Charodotes Pilsbry, 1939
Charoniella Thiele, 1929
Charpentieriana Bourguignat, 1884
Charruia Rusconi, 1955
Charta Gray, 1847
Chartoconcha Andrussov, 1907
Charubditeuthis Vivanti, 1914
Charybditeuthis Vivanti, 1912
Charydrobia Stache, 1889
Charyibiteuthis Vivanti, 1914
Chatharella Clessin, ?, 1892
Cheirobelus Whitehouse, 1924
Chelekenia Andrusov, 1903
Chelidoneura Simpson, 1900
Chelsonella Malinky, 1987
Chenoconcha d'Orbigny, 1845
Chenopea Dall, 1898
Chermites Paetel, 1875
Chernites Gistl, 1847
Chersaecia Gude, 1899
Chersina Beck, 1837
Chersodespoena Sykes, 1900
Chersomitra Martens, 1860
Chetosyna Baker, 1941
Chevronais Wurtz, 1951
Chicoracea Griffith & Pidgeon, 1834
Chiliostigma Melvill, 1918
Chilocystis Watson, 1934
Chilodon Ehrenberg, 1831
Chilogimnus Jousseaume, 1894
Chilogymnus Jousseaume, 1894
Chilonopsides Desmarest, 1859
Chiloptygma Fischer, 1883
Chilotyma Schaufuss, 1869
Chimaera Poli, 1791
Chimotrema Rafinesque, 1819
Chiridioteuthis Pfeffer, 1912
Chiripollia Iredale, 1929
Chiroktisma Gude, 1913
Chiromia d'Orbigny
Chirostrema Cristofori & Jan
Chirsodus Piette, 1875
Chistolia Sayn, 1928
Chitonella Deshayes, 1830
Chitonichnus Matsukuma & Tsubaki, 1995
Chitonigenus Renier, 1804
Chitonites Herrmannsen, 1846
Chitontypus Bergenhayn, 1930
Chittia Adams, 1858
Chittya Pfeiffer, 1865
Chlamydochiton Dall, 1878
Chlamydoglyphis Pilsbry, 1890
Chlamydolimax Wenz, 1947
Chlanidita Clessin, 1885
Chlanidotella Thiele, 1929
Chlorostracia Mabille, 1889
Choaniceras Lindström, 1888
Choanompholus Kobelt, 1909
Choanopomops Baker, 1928
Choanoteuthis Fischer, 1951
Choena Deshayes, 1830
Choerina Brusina, 1882
Chondras Gray, 1821
Chondrella Pease, 1871
Chondritortus Monterosato, 1908
Chondroplax Thiele, 1893
Chondropleuratypus Bergenhayn, 1930
Chondropomartes Henderson & Bartsch, 1920
Chondropomatus Henderson & Bartsch, 1920
Chondropomisca Torre & Bartsch, 1938
Chondropomodes Torre & Bartsch, 1938
Chondropomorus Henderson & Bartsch, 1920
Chondrops Bartsch, 1946
Chondrothyroma Henderson & Bartsch, 1920
Chondrulus Westerlund, 1887
Chonechiton Dall, 1882
Choneplaxtypus Bergenhayn, 1930
Chonocotyle Novák, 1891
Choriplaxtypus Bergenhayn, 1930
Choristoma Hartmann, 1840
Chorolimax Westerlund, 1894
Christolia Rollier, 1909
Chromatocochlias Agassiz, 1846
Chromatosphaera Pilsbry, 1892
Chromocochlea Hartmann, 1842
Chromodoridella Eliot, 1905
Chromolimax Pini, 1876
Chromotis Adams, 1863
Chronoceryx Iredale, 1941
Chronos Robson, 1914
Chrypta Ihering, 1907
Chryptobia Campana, 1890
Chrysalidimilax Kobelt, 1914
Chrysalidomilax Simroth, 1912
Chrysalites Herrmannsen, 1847
Chrysammites Paetel, 1875
Chrysammonites Herrmannsen, 1847
Chrysaor de Montfort, 1808
Chrysaore Reichenbach, 1828
Chrysator Montfort, 1808
Chryserpes Pilsbry, 1906
Chrysias Pilsbry, 1929
Chrysoar Sowerby, 1839
Chrysodon Ancey, 1887
Chrysolites Herrmannsen, 1847
Chrysopseudodon Haas, 1921
Cibdezebina Woodring, 1928
Cichoracea Berthold, 1827
Cichorax Reichenbach, 1828
Cichoreum Paetel, 1875
Cichorium Voigt, 1834
Cicinna Picaglia, 1892
Ciclostoma Scacchi, 1836
Ciclostrema Paetel, 1875
Cidaris Röding, 1798
Cigclirina Woodring, 1928
Ciliatana Caziot, 1908
Cimber Montfort, 1810
Cimbium Montfort, 1810
Cinciana Oppenheim, 1891
Cincinna Hübner, 1810
Cincinnaa Schlesch, 1925
Cinclidoceramus Heinz, 1932
Cinctaspira Powell, 1935
Cinctelliana Caziot, 1908
Cinctodonta Paetel, 1875
Cincuma Schlesch, 1925
Cinerascens Wagner, 1897
Cinetodonta Herrmannsen, 1847
Cingilla Monterosato, 1884
Cingulatiana Caziot, 1908
Cingulus Turton, 1825
Cinuliopsis Whiteaves, 1879
Ciplyella Vincent, 1930
Circamelania Yen, 1951
Circinata Herrmannsen, 1847
Circinnata Herrmannsen, 1852
Circothecidae Rozanov et al., 1969
Cirna Pallary, 1928
Cirrhopteron Paetel, 1875
Cirridius Koninck, 1881
Cirrifer Pfeffer, 1879
Cirrobasis Conrad, 1874
Cirropteron Sars, 1835
Cirsetremopsis Haas, 1929
Cirthoceratites Deshayes, ?, 1838
Cisalpina Wagner, 1897
Cisalpinana Fagot, 1884
Cithara Herrmannsen, 1847
Citharaedus Bronn, 1848
Citharoceramus Heinz, 1932
Citharoedus Herrmannsen, 1847
Citharopsis Pease, 1868
Citherea Munier-Chalmas, 1881
Citrina Wagner, 1905
Cladophora Gray, 1847
Cladophragmus Raymond, 1931
Cladopoda Gray, 1850
Clancophila Cossmann, 1925
Clanculella Sacco, 1896
Clanculellus Monterosato, 1923
Clandestinum Stoliczka, 1867
Claneophila Gray, 1858
Clarkia Koninck, 1878
Clastoteuthis Lang, 1928
Clathrina Hedley, 1922
Clathrocoelia Hall, 1879
Clathrolima Cossmann, 1908
Clathropodium Westerlund, 1897
Clathrorthalicus Strebel, 1909
Claudena Iredale, 1941
Claudettea Iredale, 1941
Clausaria Menke, 1828
Clausila Kobelt, 1913
Clausiliastra Pfeiffer, 1855
Clausilina Ehrenberg, 1831
Clausiliopsis Möllendorff, 1901
Clausilistra Clessin, 1886
Clausina Brown, 1827
Clavatuligenus Renier, 1804
Clavifurus Cossmann, 1893
Clavifusus Conrad, 1866
Clavigerina Martens, 1903
Clavitrigonia Leanza, 1942
Clavotrigonia Lebkuchner, 1932
Cleanchus Paetel, 1875
Cleanthus Gray, 1847
Cleantus Leach, 1852
Cleidomera Conrad, 1866
Cleidotheca Salter, 1866
Clenchipoma Bartsch, 1946
Cleobis Dana, 1847
Cleodora Péron & Lesueur, 1810
Cleone Gistl, 1848
Cleostyla Dall, 1896
Clepticolimax Westerlund, 1897
Clerodora Oken, 1815
Clessinella Waagen, 1905
Clessinia Doering, 1874
Clessinola Strand, 1928
Cletella Strand, 1928
Climacoceramus Heinz, 1932
Climactichnites Logan, 1860
Clinomitra Bellardi, 1889
Clinotellina Schone & Schubert, 1996
Clioderma Hall, 1861
Cliodita Quoy & Gaimard, 1825
Cliodora Schweigger, 1820
Cliospiridae
Clipeus Scacchi, 1836
Cloealia Beck, 1847
Cloelia Lovén, 1841
Cloisonnaria Adams, 1858
Closilia Spix, 1835
Clossonaria Paetel, 1875
Clossonnaria Férussac, 1821
Closterita Rafinesque, 1815
Clotho de Blainville, 1824
Clydonopoma Pilsbry, 1933
Clymene Oken, 1815
Clymenis Gray, 1842
Clymenites Münster, 1835
Clypeicella Schaufuss, 1869
Clypeidella Gray, 1855
Clypeus Scacchi, 1833
Clypidiella Cockerell, 1893
Clypites Waagen, 1895
Clytia Hartman, 1881
Clytropelta Heynemann, 1867
Cnesticystis Baker, 1938
Cnisma Mayer, 1868
Cobracephalus Whidborne, 1897
Cobresia Hübner, 1810
Coccinella Herrmannsen, 1847
Cochlear Mörch, 1877
Cochlearia Braun, 1841
Cochleogena Desmarest, 1859
Cochlicarina Brown, 1843
Cochlichondra Jan, 1830
Cochliclona Jan, 1830
Cochlidium Gray, 1850
Cochliopopsis Mori, 1938
Cochlites Gesner, 1758
Cochlitoma Férussac, 1821
Cochlocycla Jan, 1830
Cochlodon Sowerby, 1825
Cochlodonta Férussac, 1821
Cochlogena Férussac, 1821
Cochlogibba Jan, 1830
Cochlohydra Férussac, 1821
Cochlolepas Adams, 1854
Cochloolepas Fischer, 1862
Cochlopupa Jan, 1830
Cochlotoma Agassiz, 1846
Cochlycopa Hanley, 1841
Coclytoma Desmarest, 1859
Cocopupa Pilsbry & Cooke, 1920
Cocoslens Baker, 1941
Codrigtonia Kobelt, 1903
Coelacanthia Brusina, 1897
Coelacanthis Cossmann, 1921
Coelatiana Caziot, 1910
Coelocrossostoma Roman, 1928
Coelonatilus Frédériks, 1915
Coelopleura Cossmann, 1923
Coelopoma Adams, 1867
Coelorus Pilsbry, 1900
Coelostrobilops Pilsbry, 1931
Coelponatica Valette, 1925
Coenatoria Held, 1837
Coleoceras Agassiz, 1846
Coleoloides Walcott, 1889
Coleoprion Sandberger, 1847
Coliolus Tapparone-Canefri, 1886
Collobiana Locard, 1890
Collotites Jeannet, 1951
Colobostyloides Bartsch, 1946
Colobus Albers, 1850
Cololites Agassiz, 1836
Colombellarius Duméril, 1806
Colombiaticeras Royo y Gomez, 1945
Colpanostoma Bourguignat, 1889
Colpoceramus Heinz, 1932
Columba Lea, 1837
Columbellarius Froriep, 1806
Columbelligenus Renier, 1804
Columbus Montfort, 1810
Columellina Bivona-Bernardi, 1832
Columna Cooper, 1892
Columnium Chiaje, 1844
Columplica Hartmann, 1843
Columplicata Paetel, 1875
Colyma Rafinesque, 1815
Colymbetes Hübner, 1810
Colymbites Paetel, 1875
Colymbus Paetel, 1875
Cominia Brown, 1844
Comorina Simrot, 1910
Comoropeas Pilsbry, 1906
Complanaria Swainson, 1840
Complanatiana Locard, 1890
Compsochiton Hoare & Cook, 2000
Compsopleura Conrad, 1865
Conaemella Thiele, 1925
Conalex Paetel, 1875
Conalix Jay, 1836
Conarius Duméril, 1806
Concentrica Wagner, 1905
Conchilium Oken, 1817
Conchites Schläpfer, 1821
Conchotyra Haast, 1871
Conchyliolithus Martin, 1809
Conchylium Cuvier, 1817
Conchyta Sowerby, 1842
Concinna Adams, 1854
Concola Dybowski, 1902
Concolepadigenus Renier, 1804
Concula Herrmannsen, 1847
Condiloceras Uhlig, 1903
Condrulus Picaglia, 1894
Condyloceramus Heinz, 1932
Coneulota Pfeffer, 1929
Congeriomya Andrusov, 1897
Congohelix Pfeffer, 1931
Congoveronicella Forcart, 1953
Conicana Caziot, 1910
Conicella Laseron, 1954
Coniclus Albers, 1850
Conicus Paetel, 1875
Conidea Swainson, 1840
Conigenus Renier, 1804
Conilites Schlotheim, 1820
Coniolus Paetel, 1890
Conispira Rafinesque, 1815
Conites Herrmannsen, 1847
Conocardiidae Miller, 1889
Conoceratites d'Archiac & Verneuil, 1842
Conocypraea Oppenheim, 1901
Conoehelix Swainson, 1840
Conoelix Swainson, 1821
Conogulella Pilsbry, 1919
Conohelix Agassiz, 1846
Conoidacmea Habe, 1944
Conolites Swainson, 1835
Conolix Paetel, 1875
Conolus Pallary, 1901
Conophera Tryon, 1884
Conophora Suter, 1909
Conospira Cossmann, 1896
Conospirus Gregorio, 1890
Conotubularia Troost, 1834
Conovolus Gistl, 1848
Conovula Schweigger, 1820
Conovulum Sowerby, 1842
Conovulus Beck, 1838
Conradiceras Cossmann, 1900
Conspurcatiana Fagot, 1891
Constricta Böttger, 1877
Constrictiana Fagot, 1890
Contectiana Bourguignat, 1880
Contermina Wagner, 1909
Contitheca Sysoev, 1972
Contorta Megerle, 1841
Contortia Sacco, 1894
Contractenidae
Conularia Miller, 1820
Conularites Bowdich, 1822
Conulema Stoliczka, 1871
Conulites Cozzens, 1846
Conulopolita Böttger, 1879
Conulus Fitzinger, 1833
Convexiterbeccus Shimansky, 1947
Coodea Servain, 1891
Coptaxis Cossmann, 1901
Cor Mörch, 1853
Coracias Herrmannsen, 1847
Corallina Bucquoy, Dautzenberg & Dollfus, 1882
Coralliofusus Kuroda, 1953
Corbuligenus Renier, 1804
Corcyrensiana Fagot, 1890
Cordissa Gistl, 1848
Cordium Gistl, 1848
Cordula Gray, 1852
Coreospiridae Knight, 1952
Coretus Bruguière, 1792
Corimija Agassiz, 1884
Corimya Agassiz, 1884
Cornaptychus Trauth, 1927
Cornea Megerle, 1811
Cornelia Mayer, 1887
Cornelium Chiaje, 1844
Corneoxesta Iredale, 1941
Cornetus Oppenheim, 1890
Corniculum Herrmannsen, 1847
Corniformis Agassiz, 1846
Cornucaprina Futterer, 1892
Cornucopia Thomson, 1802
Cornulitidae
Cornulitozoon Dzik, 1991
Cornulus Cockerell, 1885
Cornuoides Brown, 1827
Corona Recluz, 1850
Coronaria Lowe, 1852
Coronilla Perner, 1907
Corrugaria Conrad, 1853
Corrugata Böttger, 1878
Corulites Herrmannsen, 1852
Coryalis Coates, 1925
Corynadenia Berry, 1940
Cosinia Stache, 1880
Cosmetopsis Rovereto, 1898
Cosmioceramus Heinz, 1932
Cosmoceratites Schrammen, 1928
Cosmogyria Buckman, 1899
Cosmolytoceras Spath, 1924
Cosmomenus Baker, 1941
Cosmopseudodon Haas, 1920
Cosmostylina Dubar, 1945
Cossmanniceras Lemoine, 1915
Costacylmenia Schmidt, 1921
Costaea Tiberi, 1881
Costanucula Habe, 1951
Costatella Kimakowicz, 1890
Costatheca Missarzhevsky, 1969
Costatiana Bourguignat, 1884
Costatofusus Tomlin, 1929
Costatoscala Sacco, 1891
Costatulites Berger, 1982
Costavarix Baker, 1935
Costella Meek, 1876
Costellifer Meek, 1863
Costigo Böttger, 1891
Costigrammoceras Buckman, 1926
Costigulella Pilsbry, 1919
Costipellagiella
Costorbis Lindholm, 1926
Costulelithus Paetel, 1875
Costulofusus Cossmann, 1896
Cotitrochus Baker, 1941
Cotunnium Chiaje, 1844
Cotylelithus Herrmannsen, 1847
Coulboisia Bourguignat, 1888
Couphaniana Bourguignat, 1884
Couphiana Bourguignat, 1884
Courquiniana Locard, 1889
Covolina Mörch, 1855
Cowdaleoceras Bisat, 1952
Coxiola Pfeffer, 1929
Coya Ryckholt, 1852
Craspedodon Bittner, 1901
Craspedodonta Küster, 1842
Craspedotus Philippi, 1847
Crassaptychus Trauth, 1927
Crassatelligenus Renier, 1804
Crassialaria Dahmer, 1932
Crassicoeloceras Buckman, 1926
Crassidorsa Brown, 1843
Crassilabriana Fagot, 1891
Crassilinidae
Crassilinoides Alberti, 1996
Crassina Lamarck, 1818
Crassitaia Annandale, 1919
Crassitesta Simpson, 1900
Crassithracia Soot-Ryan, 1941
Craterarion Taylor, 1954
Cratere Porro, 1838
Cratium de Blainville, 1818
Cratomya Rollier, 1913
Crawfordia Dall, 1918
Cremula Iredale, 1915
Crenatinanina Germain, 1920
Crenatodostomia Nomura, 1937
Crenatuligenus Renier, 1807
Crendonina Buckman, 1925
Crendonites Buckman, 1923
Crenellodon Newton, 1891
Creniclavis Lindholm, 1924
Crenilytoceras Buckman, 1926
Crenimargo Cossmann, 1902
Crepiduligenus Renier, 1804
Crepiemarginula Seguenza, 1880
Creseidopsis Sandberger, 1889
Cressa Westerlund, 1889
Cressea Kobelt, 1904
Crestjahitidae
Cretagryphaea Arkell, 1934
Cretica Böttger, 1878
Cretozonites Kobelt, 1890
Cribella Herrmannsen, 1852
Crickia Buckman, 1899
Cricoceramus Heinz, 1932
Cricomphalos de Blainville, 1818
Cricophorus Kobelt & Möllendorff, 1897
Crino Gistl, 1847
Criocera Gray, 1842
Crioconites Buckman, 1925
Criorcites Herrmannsen, 1847
Criraria Jousseaume, 1884
Crisia Menke, 1844
Crispatella Malinky, 2002
Cristadens Simpson, 1914
Cristallina Caziot, 1910
Crocochiton Cotton & Weeding, 1939
Cromatocochlias Paetel, 1890
Crossbitheca Missarzhevskii, 1974
Crossilla Thiele, 1927
Crossostephanus Dall, 1908
Cruentata Scudder, 1882
Crypta Gray, 1850
Cryptaenia Eudes-Longchamps, 1864
Cryptaulus Foerste, 1923
Cryptibycus Cockerell, 1898
Cryptobia Deshayes, 1863
Cryptocella Adams, 1853
Cryptoceras Barrande, 1846
Cryptochitontypus Bergenhayn, 1930
Cryptoconchustypus Bergenhayn, 1930
Cryptogirasia Godwin-Austen, 1908
Cryptonema Jukes-Browne, 1914
Cryptoplaxtypus Bergenhayn, 1930
Cryptostoma de Blainville, 1818
Cryptothyra Menke, 1830
Cryptozona Mörch, 1872
Crysptotoma Quoy & Gaimard, 1832
Crystallina Caziot, 1910
Crystallinana Caziot, 1910
Crystallus Lowe, 1855
Ctenites Herrmannsen, 1847
Cteniurus Rafinesque, 1814
Cubadamsiella Torre & Bartsch, 1941
Cubaviana Baker, 1922
Cubitasiphona Torre & Bartsch, 1941
Cuchillites Scott, 1939
Cuculella Sandberger, 1889
Cuculites Herrmannsen, 1847
Cuculla Seba, 1761
Cucullaeigenus Renier, 1804
Cucullea Michelin, 1838
Cucullela Tromelin & Lebesconte, 1875
Cucullella M'Coy, 1851
Cucullifera Conrad, 1875
Cucullus Röding, 1798
Cufaea Gray, 1852
Culana Gray, 1842
Cultrensis Coen, 1933
Cultrigera Böhm, 1884
Cumbieria Martens, 1891
Cunearia Spitz, 1907
Cuneopsidea Wenz, 1928
Cunicula Swainson, 1840
Cunula Pallary, 1936
Cupinota Iredale, 1939
Curricula Gray, 1847
Curticaulis Simroth, 1913
Curtitheca Sysoev, 1968
Curtonotus Jukes, 1862
Curvidactylites Buckman, 1927
Curvirostra Herrmannsen, 1847
Curvulites Rafinesque, 1831
Cusmicia Möllendorff, 1875
Cusmischia Westerlund, 1901
Cuspiteuthis Abel, 1916
Cutellus Sowerby, 1839
Cuveriana Hoeninghaus, 1830
Cuvierana Bronn, 1848
Cyamionema Melvill & Standen, 1914
Cyane Adams, 1870
Cyanogaster Oken, 1823
Cyclacantha Herrmannsen, 1847
Cycladamsia Bartsch, 1942
Cycladea Rafinesque, 1815
Cycladella Carpenter, 1865
Cycladigenus Renier, 1804
Cycladina Clessin, 1871
Cycladites Krueger, 1823
Cyclauchen Pilsbry, 1930
Cyclemis Rafinesque, 1819
Cyclensis Paetel, 1890
Cyclidia Rolle, 1862
Cycliscus Gude, 1911
Cyclobakeria Bartsch, 1942
Cyclocalyx Dall, 1903
Cyclocaymania Bartsch, 1942
Cycloceramus Heinz, 1932
Cycloceratites Schrammen, 1928
Cyclocerion Bartsch, 1952
Cyclocheila Conrad, 1874
Cyclochilus Agassiz, 1845
Cyclochittya Morrison, 1955
Cyclocubana Torre & Bartsch, 1942
Cyclocyrtonellidae
Cyclocystis Watson, 1934
Cyclodama Paetel, 1875
Cyclodoma Swainson, 1840
Cyclohelix Mörch, 1852
Cyclohidalgoa Bartsch, 1942
Cyclolimnaea Dall, 1905
Cyclomera Conrad, 1866
Cyclomonilearia Pfeffer, 1929
Cyclomya Simpson, 1900
Cyclonautilus Hind, 1911
Cyclophoropsis Dautzenberg, 1908
Cyclopoma Troschel, 1847
Cyclopomops Bartsch & Morrison, 1942
Cycloprocta Simroth, 1913
Cyclorizoceras Foerste, 1930
Cyclos Kruger, 1823
Cyclostomigenus Renier, 1804
Cyclostrea Gentil, 1902
Cyclostreon Eichwald, 1868
Cyclotellinodes Strand, 1928
Cyclothyris Conrad, 1875
Cyclotropis Tapparone-Canefri, 1883
Cyclus Anton, 1837
Cydippa Rafinesque, 1815
Cydippe Gray, 1852
Cyglas Oken, 1835
Cygnaeana Bourguignat, 1881
Cyharella Monterosato, 1875
Cylicoceras Buckman, 1899
Cylindraceana Caziot, 1908
Cylindrellina Munier-Chalmas, 1884
Cylindrica Clessin, 1882
Cylindrina Schlüter, 1838
Cylindritis Skeat & Madsen, 1898
Cylindrocaulides Strand, 1928
Cylindrocaulus Hoffmann, 1925
Cylindrodes Hübner, 1810
Cylindrogyra Repelin, 1902
Cylindropalaina Möllendorff, 1897
Cylindrophaedusa Böttger, 1877
Cylindrosiphona Torre & Bartsch, 1941
Cylindulus Rafinesque, 1815
Cylindus Müller, 1766
Cylophorus Clessin, 1887
Cymatia Scudder, 1882
Cymatoceramus Heinz, 1932
Cymatocyclas Dall, 1903
Cymatodus Dall, 1882
Cymatosphinctes Buckman, 1923
Cymbancilla Fischer, 1881
Cymbelia Eschricht, 1837
Cymbuliopsis Pelseneer, 1888
Cymbulostrea Sacco, 1897
Cymodocaea d'Orbigny, 1835
Cymodocea d'Orbigny, 1836
Cymostyla Martens, 1887
Cymotropis Martens, 1860
Cynodoma Paetel, 1875
Cyphidaeana Caziot, 1910
Cyphideana Caziot, 1910
Cyphidoeana Servain, 1881
Cyphona Scudder, 1882
Cyphoxis Rafinesque, 1819
Cyphoxus Paetel, 1875
Cyphoxys Agassiz, 1846
Cypraeacites Schlotheim, 1820
Cypraeactaeon White, 1887
Cypraearius Froriep, 1806
Cypraecites Paetel, 1875
Cypraeella Paetel, 1875
Cypraeigenus Renier, 1804
Cypraela Sowerby, 1842
Cypreida Swainson, 1840
Cyprella Paetel, 1875
Cypreovula Fleming, 1828
Cypria Simroth, 1910
Cypriarius Duméril, 1806
Cypricea Gray, 1853
Cyprinella Gabb, 1864
Cypriniadea Rovereto, 1900
Cyprinopsis Conrad, 1869
Cyrachaea Leach, 1847
Cyrenastrum Bourguignat, 1854
Cyrenocapsa Fischer, 1872
Cyrenocyclas Agassiz, 1846
Cyrenodonta Adams, 1857
Cyrenolimopsis Habe, 1953
Cyria Leach, 1818
Cyrillium Chiaje, 1844
Cyrniacana Fagot, 1892
Cyrsocrassiscala Sacco, 1891
Cyrthoceras Nalivkin, 1930
Cyrthocerus King, 1844
Cyrtoceramus Heinz, 1932
Cyrtochesus Kobelt, 1892
Cyrtochilella Strand, 1929
Cyrtoconella Patrulius, 1996
Cyrtodera de Blainville, 1825
Cyrtodontopsis Frech, 1891
Cyrtodoria Férussac, 1821
Cyrtonotus Fischer, 1886
Cyrtosolen Herrmannsen, 1848
Cyrtotheca Hicks, 1872
Cyrtusiana Locard, 1889
Cystia Deshayes, 1844
Cysticopsis Mörch, 1852
Cystigenus Renier, 1804
Cythaerea Borson, 1825
Cythereites Krueger, 1823
Cytherigenus Renier, 1804
Cytonotus Rafinesque, 1815
Dabanitheca Missarjevsky, 1989
Daciella Wenz, 1942
Dacryomia Gressly, 1838
Dacrystoma Crosse & Fischer, 1871
Dactylina Gray, 1847
Dactyliola Weinkauff, 1878
Dactyliomorpha Wenz, 1923
Dactylius Sandberger, 1872
Dactyloceramus Heinz, 1932
Dactylogammites Buckman, 1925
Dactylomela Jhering, 1915
Dactylomorpha Gude, 1911
Dadone Gistl, 1847
Daghestanites Glazunova, 1953
Dalainoria Lindholm, 1927
Dalila Barrande, 1881
Dalingia Godwin-Austen, 1907
Dalliconcha White, 1887
Dalmanitheca Qian, Zhu & Jiang, 2000
Dalmatica Böttger, 1877
Dalmatina Wagner, 1897
Damalis Leach, 1847
Damaris Swainson, 1823
Damesiella Tornquist, 1898
Danalis Mörch, 1853
Daradiceras Sornay & Tessier, 1949
Darellella Buckman, 1904
Darellina Buckman, 1904
Darwinites Malinky, Mapes & Broadhead, 1986
Dasanus Rafinesque, 1815
Dascinus Gray, 1850
Dasyconus Baker, 1938
Dasytherion Mabille, 1887
Dauciscala Boury, 1917
Daudebardiella Böttger, 1905
Davidaschvilia Merklin, 1950
Davidella Zhegallo, 1996
Davidia Hicks, 1873
Dawsonia Dall, 1882
Dayeconcha Wang, 1993
Debeauxhelix Bacci, 1941
Dechenia Spriestersbach, 1915
Decipilites Marek, 1975
Decollatiana Caziot, 1910
Deflexia Dorodnova & Klishevich, 1989
Defonticeras McLearn, 1927
Defossiceras Buckman, 1913
Dekhania Godwin-Austen, 1888
Delawarella Collignon, 1948
Delessertia Pallary, 1939
Delevieleusia Hagenmüller, 1885
Delogyra Agassiz, 1845
Delomphalus Agassiz, 1837
Deloplecta Agassiz, 1845
Delpeya Collignon, 1949
Delphinuligenus Renier, 1807
Deltostrigites Buckman, 1924
Deltotoceras Buckman, 1904
Demanetia Maillieux, 1937
Demarestia Hartmann, 1840
Dendopecten Hertlein, 1936
Dendrocochlis Pilsbry & Brown, 1910
Dendrotoxon Pollonera, 1911
Deniharpa Iredale, 1931
Dentaliopsis Gray, 1847
Dentalis Herrmannsen, 1847
Dentalites Schlotheim, 1813
Dentaria Krylova, 1995
Dentatobeccus Shimansky, 1947
Dentatus Gray, 1847
Dentaxis Pilsbry, 1902
Dentellaria Schumacher, 1817
Dentellocaracollus Oppenheim, 1890
Dentellocaracolus Oppenheim, 1890
Dentiannulatidae
Denticuloglabella Sacco, 1890
Dentiomodiolus Iredale, 1939
Dentiora Pease, 1863
Dentipecten Gray, 1847
Dentipes Müller, 1775
Dentistomus Kimakowicz, 1890
Dentostoma Paetel, 1875
Depaoceras Buckman, 1902
Depressiana Bourguignat, 1881
Deridobranchia Paetel, 1875
Deridobranchus Ehrenberg, 1831
Deriobranchus Gray, 1840
Dermatomaya Dall, 1908
Desertella Haug, 1905
Deserticola Hesse, 1911
Desfontainiana Locard, 1889
Deshagesia Dall, 1898
Desmarestea Paetel, 1875
Desmarestia Herrmannsen, 1847
Desmaulus Rehder, 1943
Desmieria Douvillé, 1904
Desmocaulis Simroth, 1913
Despaenella Baker, 1923
Detritana Fagot, 1891
Detritiana Caziot, 1910
Deussinia Stephenson, 1941
Devoniotheca
Devonlotheca Malinky, 1987
Devonzyga Horný, 1954
Dexiobranchaea Boas, 1885
Dexiogira de Betta, 1870
Dexiogyra Stabile, 1864
Dextroformosana Böttger & Schmacker, 1894
Diacerion Dall, 1894
Diachora Desmarest, 1859
Diadelochiton Hoare, 2002
Diadiploceras Hyatt, 1884
Diaglyptus Pilsbry, 1892
Diagonaulus Pilsbry & McGinty, 1945
Dialessa Iredale, 1955
Dianchora Sowerby, 1815
Dianisotis Rafinesque, 1831
Dianxitheca Qian, Zhu & Jiang, 2000
Diaphanana Caziot, 1910
Diaphanella Hesse, 1916
Diaphoreolis Iredale & O'Donoghue, 1923
Diaphorites Fucini, 1896
Diaphragmella Etheridge, 1917
Diarthrochiton Fischer, 1885
Diaspira Soós, 1911
Diastropha Gray, 1840
Diatropha Gray, 1840
Dibothrion Pfeiffer, 1855
Diceratia Oken, 1815
Diceratigenus Renier, 1804
Diceratis Paetel, 1875
Diceratoptyx Pilsbry, 1905
Dicharax Kobelt & Möllendorff, 1900
Dicladus Rafinesque, 1814
Dicolpus Philippi, 1887
Dicrasna Paetel, 1889
Dicricoconidae
Dicriconconus
Dicroptera Rafinesque, 1814
Dicthyetis Paetel, 1875
Dictyethis Rafinesque, 1814
Dictyoceramus Heinz, 1932
Dictyoglessula Pilsbry, 1919
Didacnomya Andrussov, 1923
Didomasta Iredale, 1941
Dienerites Mojsisovics, 1902
Diepenheimia Preston, 1913
Dierama Pfeiffer, 1877
Dieretostoma Cossmann, 1888
Difficilis Wagner, 1897
Digerus Haas, 1937
Diggreidum Paetel, 1887
Digitata Fabricius, 1823
Digitobranchus Risbec, 1937
Diglyptus Pilsbry, 1893
Dignaxis Baker, 1939
Digoniaxis Jousseaume, 1889
Digonioceras Hyatt, 1894
Digoniomya Whidborne, 1897
Digulella Haas, 1934
Digyreidum Westerlund, 1902
Digyridum Cossmann, 1921
Dihangia Godwin-Austen, 1916
Dihora
Dikrangia Godwin-Austen, 1920
Dimeres Barrande, 1867
Dimeroceramus Heinz, 1932
Dimorion Barrande, 1867
Dimorphosoma Gardner, 1875
Dimyopsis Bittner, 1895
Dingus
Dinoplaxtypus Bergenhayn, 1930
Diochiton Thiele, 1893
Diodorea Risso, 1826
Diodus Gabb, 1868
Dioeciostraea Thiele, 1934
Dione Gray, 1847
Dionositis Férussac, 1835
Dioscuria Lindholm, 1927
Diphragmoceras Hyatt, 1900
Diphyllis Oken, 1817
Diphyllites Jullien, 1911
Dipilidia Matheron, 1843
Dipillidia Paetel, 1875
Diplasma Rafinesque, 1831
Diplicaria Rafinesque, 1833
Diploctenus Lütke, 1985
Diplodiscus Westerlund, 1897
Diplommoptychia Maillard, 1884
Diplomoptychia Dacqué, 1933
Diplopelecya Locard, 1886
Diplopelycia Mörch, 1872
Diplopinax Bartsch, 1918
Diplopseudodon Haas, 1921
Diplopterum Kobelt & Möllendorff, 1897
Diploptychia Möllendorff, 1895
Diplopupina Iredale, 1937
Diploroteuthis Lemoine, 1915
Diplosellites Buckman, 1925
Diplothecidae
Diplotoxon Simroth, 1897
Dipsada Griffith, 1834
Dipsas Leach, 1814
Dipsax Voigt, 1834
Dipsus Gray, 1835
Dipterophora Fuchs, 1919
Dipterophysis Pilsbry, 1896
Diptychoceras Gabb, 1868
Diptychomitra Bellardi, 1889
Diretrostoma Dollfus, 1912
Dirhachis Whidborne, 1891
Discella Gray, 1857
Discobostryx Pilsbry & Olsson, 1949
Discoceramus Heinz, 1932
Discoceratidae
Discocirrus Ammon, 1893
Discoconulops Habe, 1946
Discodoma Swainson, 1840
Discoehelix Pavlovic, 1926
Discoidea Wagner, 1905
Discoidina Stein, 1850
Discolepis Ancey, 1904
Discolites Emmons, 1855
Discorbis Férussac, 1822
Discosoma Paetel, 1875
Discospira Semper, 1862
Discostrobilops Pilsbry, 1928
Discovermetulus Rovereto, 1904
Discovermetus Cossmann, 1905
Discozonites Pilsbry, 1924
Disjunctaria Böttger, 1877
Dissita Kolesnikov, 1939
Dissopalia Iredale, 1936
Dissoroceras Buckman, 1902
Distefania Fucini, 1931
Disteira Eichwald, 1843
Disteustoma Iredale, 1941
Distichia Brandt, 1833
Distoechia Crosse, 1890
Distomospira Dall, 1895
Distorta Perry, 1811
Ditaxopus Rafinesque, 1839
Dithalamia Paetel, 1875
Ditomus Agassiz, 1846
Ditropopsis Smith, 1897
Diversicolor Wagner, 1905
Diversicostata Wassoievic & Eberzin, 1930
Divisoceras Bubnoff, 1935
Djebaricana Fagot, 1883
Djeddilia Jousseaume, 1894
Djiboutia Vayssière, 1912
Doeringina Ihering, 1929
Doescherina Malinky, 1989
Dofania Mörch, 1860
Dolialiana Caziot, 1910
Doliana Caziot, 1908
Doliaria Berthold, 1827
Dolichena Pilsbry, 1934
Dolicheolis Finlay, 1926
Dolicholestes Pilsbry, 1906
Dolichoschisma Iredale, 1940
Dolichostyla Pilsbry, 1896
Doliigenus Renier, 1804
Dolikephalites Buckman, 1923
Doliocephalites Cossmann, 1924
Doliolabis Iredale, 1936
Doliolana Caziot, 1910
Doliopsis Conrad, 1865
Dolites Krueger, 1823
Doloceratites Schrammen, 1928
Domax Anon., 1839
Donaciarius Duméril, 1806
Donacigenus Renier, 1804
Donacina Menke, 1828
Donacites Gmelin, 1793
Donaldia Perner, 1903
Donjuaniceras Basse, 1950
Dontostoma Adams, 1858
Dorbignya Tate, 1868
Dorcasidea Iredale, 1941
Doridobranchus Paetel, 1875
Doridoeides Eliot & Evans, 1908
Dorimorpha Herrmannsen, 1852
Dorimorphe Audouin & Milne-Edwards, 1832
Dorsojugatidae Sysoyev, 1968
Dorsomya Ryckholt, 1851
Dorvillea Gray, 1852
Doryanthes Münster, 1846
Dotilla Bergh, 1879
Dracryomia Gressly, 1838
Dramelia Iredale, 1941
Drapanocaulis Germain, 1920
Drepania Gregorio, 1930
Drepanocaulis Simroth, 1913
Drepanoceramus Heinz, 1932
Drepanoceras Hoepen, 1931
Drepanoconcha Zilch, 1949
Drepanoprocta Simroth, 1913
Dresseroceras Ulrich, Foerste, Miller & Unklesbay, 1944
Drilliocerithium Cossmann, 1910
Drillocerithium Monterosato, 1910
Drilolestes Lindholm, 1925
Drinia Kobelt, 1913
Drusia Gray, 1855
Dryochoceras Morgan, 1924
Dryocochlias Möllendorff, 1898
Dryocochlyas Kobelt, 1912
Dubiana Fagot, 1891
Dublonia Clench, 1949
Duboisiana Bourguignat, 1880
Ducya Pezant, 1908
Dudichia Wagner, 1941
Dufouriana Bourguignat, 1884
Dunar Cossmann, 1925
Dundryites Buckman, 1926
Duplicatula Kolesnikov, 1939
Dupotetia Kobelt, 1904
Dupuyana Fagot, 1891
Durban Weyenbergh, 1875
Durgaites Diener, 1905
Durnovarites Spath, 1932
Duslia Jahn, 1893
Dvorecia Ruzicka, 1949
Dybowskia Dall, 1877
Dybowskiella Kobelt, 1913
Dybowskiola Lindholm, 1913
Dyctiethis Rafinesque, 1815
Dymya Rouault, 1850
Dyodonta Hartmann, 1842
Dyphillidia Paetel, 1875
Dypsas Kobelt, 1880
Dyris Conrad, 1871
Dysmedoma Pilsbry, 1939
Dysnoetopla Liu, 1987
Dysopeas Baker, 1927
Dythalamia Paetel, 1875
Dythalmia Jay, 1835
Ebaliea Paetel, 1875
Ebalina Thiele, 1929
Ebena Schumacher, 1817
Ebianella
Ebianotheca
Ebion Gistl, 1848
Eburnea Mousson, 1887
Eburnella Pease, 1870
Eburnigenus Renier, 1804
Eccritopoma Pilsbry, 1933
Ecericardium Eberzin, 1947
Echidius Paetel, 1875
Echidnis Montfort, 1808
Echinoceratites Schrammen, 1928
Echinochiton Pojeta, Eernisse, Hoare & Henderson, 2003
Echinoderma Deshayes, 1830
Echinodoris Bergh, 1874
Echinophora Latreille, 1825
Echinotis Marwick, 1935
Echinotus Marwick, 1935
Echioderma Gray, 1825
Echionoderma Poli, 1795
Echo Hartman, 1881
Ecostoanachis Sacco, 1890
Ectenoptera Ulrich, 1897
Ectonoceras Ulrich & Foerste, 1935
Ectracheliza Gabb, 1873
Ecuadorea Marshall & Bowles, 1932
Edentata Dybowski & Grochmalicki, 1923
Edentiplica Iredale, 1939
Edentula Nitzsch, 1820
Edentulana Fagot, 1891
Edentulopupa Cooke & Pilsbry, 1920
Edgaria Bourguignat, 1888
Eduardia Hesse, 1916
Eduardus Pilsbry, 1930
Edulicardium Monterosato, 1923
Edusa Martens, 1860
Edwardus Pilsbry, 1930
Effusa Jousseaume, 1889
Egana Böttger, 1878
Egdetheca Missarzhevskii, 1969
Egetaria Mörch, 1861
Eglaea Deshayes, 1830
Eglea Paetel, 1875
Egraca Leach, 1852
Eguoena Jousseaume, 1875
Eichwaldiceras Buckman, 1920
Eichwaldites Dorodnova, 1993
Eidothea Risso, 1826
Ekadanta Rao, 1928
Elachista Dall & Bartsch, 1901
Elaea Hutton, 1884
Elana Gray, 1868
Elara Adams, 1854
Elasmatina Petit de la Saussaye, 1843
Elasmocentrum Pilsbry, 1902
Elasmodophora Isberg, 1934
Elasmogena Herrmannsen, 1852
Elasmophora Westerlund, 1887
Elassum Woodring, 1946
Elathia Issel, 1869
Elatia Megerle
Elea Fitzinger, 1833
Electrea Klebs, 1886
Eledon Oken, 1817
Elegantuliceras Buckman, 1913
Elena Caziot, 1910
Elenodon Porro, 1840
Eligmope Dennant, 1889
Elisma Gray, 1831
Elismia Leach, 1847
Ellarion Iredale, 1941
Ellipsolites Sowerby, 1813
Ellipsolithes Montfort, 1808
Ellipsolithus Herrmannsen, 1847
Ellipsopsiana Bourguignat, 1881
Ellipsopsisiana Locard, 1889
Ellipstoma Rafinesque, 1818
Ellistoma Menke, 1830
Elongatiana Locard, 1890
Elongatulusiana Locard, 1889
Eltrostoma Rafinesque, 1815
Elymella Hall, 1885
Elysiopterus Pruvot-Fol, 1946
Emarginaria Böttger, 1877
Emarginuligenus Renier, 1807
Emarites Marek, Malinky & Geyer, 1997
Embiana Locard, 1890
Emeithecidae
Emericiceras Sarkar, 1954
Emileites Buckman, 1927
Emiralena Iredale, 1941
Emmarginula Clessin, 1887
Emmericiopsis Thiele, 1928
Enanticeramus Heinz, 1932
Enargetes Fischer de Waldheim, 1830
Enchostoma Miller & Gurley, 1896
Enclimatoceras Hyatt, 1884
Endocosteahaenleinia Toula, 1912
Endopleura Adams, 1864
Endoplocus Cox, 1954
Endoplon Gude, 1899
Endostropha Agassiz, 1845
Endotoma Rafinesque, 1818
Englesia Paetel, 1875
Enkebergia Schindewolf, 1924
Enneastrum Pfeiffer, 1866
Enneopupa Böttger, 1889
Enoplochitontypus Bergenhayn, 1930
Ensigervilleia Dietrich, 1910
Ensiphorus Conrad, 1862
Ensitheca Valkov, 1982
Entagaricus Pilsbry, 1919
Entale Herrmannsen, 1847
Entalites Herrmannsen, 1847
Entalium Defrance, 1819
Enterodonta Sykes, 1894
Entomostoma Baker, 1941
Entragus Paetel, 1875
Enydra Dall, 1905
Eoathleta Gardner, 1945
Eobulimites Astre, 1923
Eocantharus Clark, 1938
Eocasmaria Vredenburg, 1928
Eocautor Eames, 1951
Eochiton Fischer, 1885
Eocremnoconchus Prashad, 1928
Eocryphispira Yu, 1987
Eocryptaulina Foerste, 1936
Eodiplodon Marshall, 1928
Eodrillia Casey, 1904
Eoepigoniceras Shimizu, 1935
Eogloborilus Qian, 1978
Eohalobia Jiang, 1982
Eoischyrina
Eolatyrus Sacco, 1890
Eolididae
Eolimax Caziot, 1910
Eolinevitus Qian, Zhu & Jiang, 2000
Eolymnium Prashad, 1919
Eomeekoceras Sun, 1939
Eomegaspira Pilsbry, 1904
Eonaias Marshall, 1929
Eonovitatus
Eopteriidae Miller, 1889
Eoptychites Spath, 1930
Eorrhachis Tomlin & Peile, 1930
Eosactoceras Shimizu & Obata, 1935
Eoscobinella Powell, 1942
Eospyroceras Shimizu & Obata, 1935
Eostrophia Dall, 1890
Eotibia Clark, 1942
Epalscites Douvillé, 1910
Epalxites Mascke, 1906
Epammonites Spath, 1922
Eparciella Cox, 1954
Eparnioceras Spath, 1924
Epechioceras Trueman & Williams, 1925
Epengonoceras Spath, 1924
Epheriella Pallary, 1920
Ephippium Röding, 1798
Ephippodontina Kuroda, 1945
Epiceramus Heinz, 1932
Epidromis
Epihedenstroemia Spath, 1934
Epihippopodium Dietrich, 1933
Epilegoceras Tchernow, 1907
Epipachydiscus Yabe & Shimizu, 1926
Epiploa Megerle
Epipronorites Maximova, 1938
Episcomitra Monterosato, 1917
Episphinctoceras Neaverson, 1925
Episphylla Paetel, 1890
Epistilia Pilsbry, 1893
Epistyla Swainson, 1840
Epistylia Swainson, 1840
Epistylium Gray, 1840
Epona Adams, 1854
Eptoleda Iredale, 1939
Eratodium Korobkov, 1955
Erctella Monterosato, 1894
Erectidens Pilsbry, 1953
Ereminella Pallary, 1919
Eremiopsis Böttger, 1909
Eremophila Kobelt, 1871
Ericetana Fagot, 1891
Erigone Albers, 1850
Erilimella Forbes & McAndrew, 1846
Ermea Gray, 1857
Ermoea Cossmann, 1925
Ernestia Kennard & Woodward, 1926
Erpetometra Lowe, 1832
Erpetrometra Pfeiffer, 1857
Erpilites Rafinesque, 1819
Erraticana Caziot, 1910
Erraticornus Sysoev, 1973
Ersina Gray, 1847
Eruca Swainson, 1840
Erycinigenus Renier, 1804
Eryma Albers, 1854
Erythraea Sowerby, 1839
Erythrodoris Pruvot-Fol, 1933
Eryx Swainson, 1840
Escragnolleites Sarkar, 1954
Esmia Gray, 1847
Esochara Pilsbry & Vanatta, 1898
Espiphylla Rafinesque, 1819
Estopupina Iredale, 1937
Etenoides Bruguière, 1792
Ethalion Risso, 1826
Ethaliopsis Schepman, 1908
Ethella Adams, 1858
Etheriigenus Renier, 1804
Etrona Jousseaume, 1884
Ettemona Iredale, 1941
Euacanthinula Westerlund, 1889
Euadnita Iredale, 1941
Euaethiopica Bequaert, 1951
Euaethiops Clench & Archer, 1930
Eualcadia Wagner, 1907
Eualopia Böttger, 1877
Euamicola Crosse & Fischer, 1891
Euanana Baker, 1938
Euanodonta Westerlund, 1890
Euarinia Kobelt & Möllendorff, 1898
Euassiminea Martens, 1883
Eubaicalia Lindholm, 1924
Eubaikalia Starostin, 1926
Eubifidaria Sterki, 1893
Eucampylaea Westerlund, 1889
Eucampyloea Caziot, 1903
Eucaryum Ehrenberg, 1831
Eucathaica Andreae, 1900
Eucharis Récluz, 1850
Euchasmella
Euchilus Sandberger, 1872
Euclanculus Cotton & Godfrey, 1934
Euclasta Lindholm, 1924
Euclastaria Pilsbry, 1926
Euclausta Oppenheim, 1890
Euclusaea Gray, 1852
Eucochlias Nevill, 1878
Euconulops Baker, 1928
Eucorbicula Crosse & Fischer, 1894
Eucore Agassiz, 1837
Eucryptelasmus Jaume & de Fuentes, 1943
Eucyclophorus Möllendorff, 1886
Eucyclotus Möllendorff, 1890
Eudaudebardia Westerlund, 1886
Eudiancta Kobelt & Möllendorff, 1898
Eudioptus Martens, 1860
Eudiplommatina Kobelt & Möllendorff, 1898
Eudissoceras Miller & Owen, 1937
Eudistemma Dall, 1895
Eudora Gray, 1852
Eudoxas Paetel, 1889
Eudoxus Albers, 1850
Euechioceras Trueman & Williams, 1925
Euferussacia Bourguignat, 1864
Eufira Gistl, 1847
Eufretum Baker, 1941
Eugenia Martens, 1860
Eugenoceramus Heinz, 1932
Eugeomalacus Mabille, 1870
Euglesa Gray, 1840
Euglesia Jenyns, 1832
Euglypta Charpentier, 1837
Euhalina Clessin, 1877
Euhuronia Shimizu & Obata, 1936
Euhyalina Albers, 1857
Euhyalinia Taylor, 1907
Euiberus Westerlund, 1889
Eukteanochiton Vendrasco & Runnegar, 2004
Eulerema Pilsbry & Olsson, 1952
Eulimax Cockerell, 1893
Eulimopsis Brugnone, 1880
Eulimotiberia Nomura, 1939
Eulinella Monterosato, 1891
Eulotella Martens, 1892
Eumecostylus Martens, 1860
Eumegalodon Gümbel, 1862
Eumele Gray, 1847
Eumeles Scudder, 1882
Eumelus Rafinesque, 1820
Eumenis Alder & Hancock, 1845
Eumilax Böttger, 1881
Eumorphiana Bourguignat, 1884
Eumulleria Anthony, 1907
Euneritella Wagner, 1905
Euophioceras Miller, 1932
Euopisthostoma Kobelt & Möllendorff, 1898
Euostrea Douvillé, 1920
Eupala Dartevelle, 1953
Eupalaina Kobelt & Möllendorff, 1898
Eupaludestrina Mabille, 1877
Euparmacella Simroth, 1912
Euparyphia Hartmann, 1840
Eupecten Philippi, 1900
Euphemia Leach, 1847
Euphemus Rafinesque, 1815
Euphira Paetel, 1875
Euphrata Pallary, 1939
Euphyllites Wähner, 1898
Euphyoceramus Heinz, 1932
Eupisidium Odhner, 1921
Euplacostylus Crosse, 1875
Eupomatia Caziot, 1910
Euprocerites Wetzel, 1950
Eupsadara Pilsbry, 1926
Eupterotrachea Bonnevie, 1920
Euptycha Meek, 1863
Eupupina Pfeiffer, 1876
Eupyphantoceras Shimizu, 1935
Eupyrgulina Melvill, 1910
Euradiolites Wiontzek, 1934
Euralacia Cossmann, 1920
Eurasiaticoceras Shimizu & Obata, 1935
Eurastele Coen, 1946
Eurhytida Möllendorff, 1903
Euritus Jousseaume, 1900
Euromphala Lowe, 1852
Euromus Adams, 1858
Eurotella Ikeda, 1930
Euryanodon Crosse & Fischer, 1894
Eurybasis Gude, 1913
Eurybia Menke, 1830
Euryceramus Heinz, 1932
Eurychasma Cossmann, 1915
Eurycyclus Schindewolf, 1951
Eurydice Eschscholtz, 1825
Euryomphala Agassiz, 1846
Euryops Tesch, 1906
Eurypteryx Fischer, 1925
Euryptyxis Fischer, 1883
Eurystoma Albers, 1850
Eurystophe Cossmann, 1912
Eurystrophe Gude, 1911
Eurytes Rafinesque, 1832
Eurytropis Kobelt & Möllendorff, 1898
Eurytus Albers, 1850
Eusepiola Grimpe, 1922
Eustreptostele Germain, 1915
Eustreptostyla Baker, 1927
Eustropha Charpentier, 1837
Eustylon Gistl, 1848
Eutaxis Ancey, 1888
Eutellina Fischer, 1887
Eutivela Dall, 1891
Eutomopeas Pilsbry, 1946
Eutragus Charpentier, 1837
Eutrema Rafinesque, 1819
Eutrephamana Caziot, 1910
Eutriloba Westerlund, 1884
Eutriptychia Böttger, 1877
Eutrochus Adams, 1864
Eutropidophora Kobelt & Möllendorff, 1898
Eutudorella Henderson & Bartsch, 1920
Eutudorex Torre & Bartsch, 1941
Eutudorisca Henderson & Bartsch, 1920
Eutudorops Henderson & Bartsch, 1920
Euturbonilla Semper, 1862
Euvaricella Baker, 1935
Euvirgatites Lewinski, 1923
Euxinicardium Eberzin, 1947
Euxinolauria Lindholm, 1924
Euyalina Pini, 1885
Euzygaena Chun, 1910
Evaletta Pilsbry, 1918
Evalina Dall & Bartsch, 1904
Evarne Adams, 1853
Evenkyites Berger, 1982
Evenus Paetel, 1875
Exachorda Sacco, 1904
Exalloschema Hoare, Mapes & Yancey, 2002
Exaplex Férussac, 1820
Exbalea Jousseaume, 1900
Excavata Wagner, 1907
Excisa Ailly, 1896
Excussispira Lindholm, 1925
Exechoptychia Cossmann, 1903
Exiliberus Iredale, 1942
Exilitheca
Exocholeda Iredale, 1939
Exodiberus Iredale, 1939
Exogyceras Simroth, 1907
Exogyroceras Meek & Worthen, 1868
Exomegoceras Miller & Carrier, 1942
Explanatiana Caziot, 1910
Expleritoma Aldrich, 1886
Exsuavitas Baker, 1939
Extentitheca Sysoev, 1972
Extranodites Jeannet, 1951
Exydra Menke, 1848
Eydyusiana Locard, 1889
Eyromphala Gray, 1847
Eyryomphala Beck, 1837
Faba Fischer, 1883
Fabricium Chiaje, 1844
Facelinella Pruvot-Fol, 1951
Facorhina Baker, 1938
Fadyenia Chitty, 1857
Fagotiana Bourguignat, 1884
Falcilituites Remelé, 1886
Fallaciturris Tomlin, 1929
Falloonella Preston, 1914
Falsoglessula Dupuis & Putzeys, 1924
Falsopupa Germain, 1918
Falsusiana Locard, 1889
Fannetia Fischer, 1885
Fannettia Dall, 1882
Fannia Dall, 1882
Fannyia Gray, 1857
Fantema Iredale, 1941
Fargesia Heude, 1886
Farinesiana Fagot, 1891
Fascelis Agassiz, 1845
Fasciatiana Bourguignat, 1880
Fascinella Sandberger, 1872
Fasciolarigenus Renier, 1804
Fasciolina Conrad, 1867
Fastigiceras Buckman, 1919
Fatuoa Baker, 1938
Faudelia Hagenmüller, 1885
Faunopsis Gill, 1863
Faurotis Jousseaume, 1888
Faurotus Jousseaume, 1892
Fauxulella Pilsbry, 1917
Faxia Ravn, 1933
Fectaria Philippi, 1846
Felania Récluz, 1851
Feldestea Iredale, 1955
Felipes Carus, 1889
Felipponea Dall, 1919
Femorale Scudder, 1882
Fenestrella Gray, 1847
Fengshanites Chao, 1950
Fenrisia Bergh, 1888
Ferganoconcha Tschernyschev, 1938
Fernandezia Pilsbry, 1911
Ferrazia Reed, 1932
Ferreta Röder, 1882
Ferricolaria Scudder, 1882
Festiva Wagner, 1910
Fibricutis Pilsbry, 1903
Fictiscala Cossmann, 1922
Fidela Risso, 1826
Fidelis Risso, 1826
Fijia Gude, 1913
Fijiopoma Clench, 1949
Filocyclus Bartsch & Morrison, 1942
Filumna Böttger, 1878
Filurus De Kay, 1843
Fimbrilytoceras Buckman, 1918
Fimbriola Scudder, 1882
Finlaria Paetel, 1890
Firmicornus
Firola Bruguière, 1791
Firolella Troschel, 1855
Fischeria Bernardi, 1860
Fisheria Hall, 1867
Fissurelligenus Renier, 1804
Fistula Mörch, 1853
Fistulana Bruguière, 1789
Fistulanigenus Renier, 1804
Fistularia Gray, 1851
Fitzia Guppy, 1895
Flabelloides Deshayes, 1864
Flabellulum Bellardi, 1872
Flagellicaulis Simroth, 1913
Flagellocaulis Simroth, 1913
Flavoleacina Pilsbry, 1908
Flemingella Knight, 1936
Flemingia Koninck, 1881
Flexiptis Rafinesque, 1831
Flexoxyites Buckman, 1924
Flodacna Iredale, 1937
Florianites Hyatt, 1900
Florienia Pallary, 1939
Fluella Dall, 1924
Flumina Picaglia, 1892
Fluminina Westerlund, 1873
Flumininea Clessin, 1877
Fluminium Müller, 1921
Fluscina Kobelt, 1911
Fluviana Caziot, 1910
Fluviodorsum Böttger, 1885
Fluvioressoina Iredale, 1944
Fluviorissoinna Iredale, 1944
Foersteria Tomlin, 1929
Fogiella Krumbeck, 1913
Foibalia Stache, 1880
Folinaea Cossmann, 1896
Folliculiana Bourguignat, 1864
Follicullus Cossmann, 1889
Folliculus Agassiz, 1837
Follmamella Williams, 1913
Follmannella Williams, 1908
Fontaniana Fagot, 1891
Fontinaliana Fagot, 1891
Fontinalina Sterki, 1916
Foordella Longstaff, 1912
Foraminella Sowerby, 1835
Foraminigera Lindholm, 1925
Formesulus Zhizhchenko, 1934
Fornax Jousseaume, 1888
Forolepas Iredale, 1940
Forsar Gray, 1847
Forscalia Paetel, 1888
Forskahlia Smith, 1879
Forskalena Iredale, 1918
Forskalia Adams, 1854
Forskaliopsis Coen, 1931
Fosarulus Milovanovic, 1935
Fossar Gray, 1840
Fossaria Clessin, 1910
Fossarina Westerlund, 1873
Fossarullus Brusina, 1882
Fossarulus Neumayr, 1869
Fossiculorbis Haas, 1934
Fossularia Torre & Bartsch, 1941
Fossulorbis Pilsbry, 1934
Foveothyra Torre & Bartsch, 1938
Francesia Paladilhe, 1872
Franklinella Nelson, 1937
Franziceras Buckman, 1923
Frechiceras Krafft, 1902
Freia Böhm, 1884
Freila Gregorio, 1930
Fremontites Smith, 1927
Frickella Pfeiffer, 1854
Frickites Jeannet, 1951
Fridolinia Pilsbry, 1895
Friola Menke, 1830
Fritschia Picard, 1904
Frocymbulia Meisenheimer, 1905
Fruticana Caziot, 1910
Fruticoconus Möllendorff, 1882
Fruticotrochus Kobelt, 1879
Fuchsiana Gredler, 1887
Fucicola Menke, 1844
Fucinia Tomlin, 1930
Fucinites Gugenberger, 1936
Fucola Quoy & Gaimard, 1833
Fulgida Moazzo, 1939
Fulgora Wagner, 1905
Fulgoropsis Marks, 1950
Fultonelma Haas, 1951
Fumecostylus Paetel, 1875
Fundella Gregorio, 1884
Funiculus Heude, 1888
Furcatia Waterhouse, 2001
Fusarium Link, 1830
Fuscomitra Pallary, 1900
Fusculusiana Locard, 1889
Fusigenus Renier, 1804
Fusimorio Sacco, 1897
Fusinosteira Olsson, 1932
Fusites Krueger, 1823
Fusoidea Reis, 1897
Fusoides Cossmann, 1909
Fusula Scudder, 1882
Gabillotia Servain, 1890
Gabramites Stephenson, 1941
Gaetulia Kobelt, 1898
Gaffraria Scudder, 1882
Gaideropa Deshayes, 1832
Gaillardotia Bourguignat, 1877
Gakidae Kruse, 2002
Galactochillus Suklje, 1930
Galactochiloides Wenz, 1919
Galactochilus Sandberger, 1875
Galateigenus Renier, 1804
Galateola Fleming, 1828
Galaxias Beck, 1837
Galaxis Paetel, 1875
Galea Mörch, 1852
Galecardioceras Buckman, 1926
Galeiscus Feng, Qian & Rong, 1994
Galeodocassis Sacco, 1890
Galeodolium Sacco, 1891
Galeodosconsia Sacco, 1890
Galericula Sowerby, 1839
Galerita Fischer, 1807
Galeropsidea Zilch, 1949
Galerulus Brugnone, 1876
Galfridus Iredale, 1924
Galicornus
Galilaeanus Buckman, 1922
Galilaeiceras Buckman, 1922
Galilaeites Buckman, 1922
Galileja Costa, 1839
Galisgia Andrussov, 1923
Gallandia Bourguignat, 1880
Gallandiana Bourguignat, 1880
Gallensteinia Gugenberger, 1933
Gallicusiana Locard, 1889
Gallina Hartmann, 1844
Gallinula Mörch, 1852
Gallodema Iredale, 1941
Galongia Godwin-Austen, 1916
Ganga Layard, 1855
Ganomidos Ailly, 1896
Ganomidus Böttger, 1905
Garagoi Herrmannsen, 1847
Gardeniceras Matsumoto & Obata, 1955
Gardetia Dubar, 1948
Gaskoinia Roberts, 1870
Gasteropoda Gray, 1847
Gasteroptera Blainville, 1824
Gasterosiphone Gray, 1842
Gastranodon Böttger, 1889
Gastrelasmus Pilsbry, 1924
Gastridia Gray, 1847
Gastridium Sowerby, 1842
Gastrochaenites Bronn, 1848
Gastrochaenoecium Bronn, 1848
Gastrochaenolites de Leymerie, 1842
Gastrochana Lea, 1843
Gastrochoena Brown, 1827
Gastrodiana Bourguignat, 1881
Gastrodina Partiot, 1848
Gastrodon Lowe, 1852
Gastrodonia Paetel, 1875
Gastrodontella Möllendorff, 1901
Gastropoda Cuvier, 1797
Gastroptera Agassiz, 1846
Gastrosiphone Gray, 1842
Gataron Berthold, 1827
Gaterita Rafinesque, 1815
Gauga Cossmann, 1909
Geinitzia Dietz, 1910
Gelasinites Buckman, 1925
Gemella Adams, 1858
Geminidens Pilsbry, 1930
Geminula Lindholm, 1925
Gemmelaria Paetel, 1875
Gemmellaria Munier-Chalmas, 1873
Genioclymenia Gillet, 1924
Genitelix Iredale, 1941
Genot Gray, 1847
Geoceras Pilsbry, 1896
Geodiaphana Thiele, 1917
Geomene Pilsbry, 1927
Geophoroides Wagner, 1908
Georgus Thiele, 1893
Georissopsis Pilsbry, 1908
Geoscalaria Martens, 1860
Geoteuthis Münster, 1843
Geothauma Crosse, 1892
Geothentis Blanckenhorn, 1890
Geovula Swainson, 1840
Gephuroceras Hyatt, 1884
Gerhardtia Hyatt, 1903
Germanoceramus Heinz, 1932
Germanties Gillet, 1924
Geronticeras Grabau, 1936
Gerstfeldia Westerlund, 1902
Gerstfeldtia Clessin, 1880
Gervisia Blainville, 1825
Gervissia Desmarest, 1858
Gerzenites Westermann, 1954
Gestroa Pini, 1876
Gestroiana Locard, 1890
Geyerina Buckman, 1913
Ghiesbreghtia Baker, 1941
Giaenia Anon., 1817
Giardia Ancey, 1906
Gibaulina Mabille, 1897
Gibbiana Fagot, 1892
Gibbistephanus Buckman, 1928
Gibbium Gray, 1842
Gibbolino Martens, 1880
Gibbonenia Zilch, 1954
Gibbonsia Bourguignat, 1889
Gibbosula Simpson, 1900
Gibbulastra Monterosato, 1884
Gibbulina Drouet, 1855
Gibbuloidella Sacco, 1896
Gibbulus Kobelt, 1905
Gigantaxis Tomlin, 1930
Giganteotrochus Sacco, 1897
Gigantites Buckman, 1921
Gigantoceras Hyatt, 1900
Gignouxiarca Mahmoud, 1955
Gilhertia Cossmann, 1895
Gingillum Gregorio, 1930
Ginnania Monterosato, 1884
Ginolensiana Fagot, 1892
Ginorga Gray, 1840
Gioena Bruguière, 1791
Gioenia Bruguière, 1789
Girorbis Bourguignat, 1876
Girtyites Wedekind, 1914
Girvanolithes Malinky, 2003
Givenia Draparnaud, 1799
Glabrana Germain, 1903
Glabrella Scudder, 1882
Glabrondina Sacco, 1892
Gladiocerithium Monterosato, 1910
Gladius Mörch, 1852
Gladophora Bronn, 1863
Glandicula Sandberger, 1875
Glandinaria Carpenter, 1857
Glandinella Pfeiffer, 1879
Glaphyra Albers, 1850
Glaucium Agassiz, 1846
Glaucoderma Poli, 1795
Glauconella Gray, 1850
Glaucostracia Ancey, 1898
Glaucothoe Gray, 1852
Glevumites Buckman, 1924
Glischrus Studer, 1820
Globarene Iredale, 1929
Globaria Scopoli, 1777
Globiferina Risbec, 1937
Globispira Koken & Perner, 1925
Globites de Haan, 1825
Globorilidae
Globorilusopsis Maubeu, 1994
Globosites Gesner, 1758
Globosobeccus Shimansky, 1947
Globotrochus Haas, 1935
Globulina Wagner, 1905
Globulinus Crosse & Fischer, 1875
Globulites de Haan, 1825
Globus Deshayes, 1832
Glochidium Rathke, 1797
Glocomene Gray, 1852
Glomerata Rensch, 1934
Glomulus Monterosato, 1888
Glorioclava Olsson, 1944
Glossiderma Paetel, 1875
Glossoderma Poli, 1795
Glossolites Luo & Hu, 1999
Glossostylus Kobelt & Möllendorff, 1897
Gloyioceras Wilckens, 1947
Glyciana Bourguignat, 1881
Glycilima Iredale, 1931
Glycimera de Blainville, 1824
Glycimerigenus Renier, 1804
Glypeuthria Kobelt, 1906
Glyphioceras Hyatt, 1884
Glyphognomon Baker, 1930
Glyphosphinctes Buckman, 1925
Glyphyaloides Baker, 1930
Glyphyalops Baker, 1928
Glyphyalus Baker, 1928
Glyptaulax Gude, 1914
Glyptobasis Koninck, 1881
Glyptobensonia Möllendorff, 1894
Glyptoconus Möllendorff, 1894
Glyptomelania Crosse & Fischer, 1892
Glyptostylina Koken, 1898
Gnathonoceramus Heinz, 1932
Gnesioceramus Heinz, 1932
Godthaabites Frebold, 1932
Goldfussia Castelnau, 1843
Goldielix Iredale, 1941
Gomphoceratites d'Archiac & de Verneuil, 1842
Gomphodelis Rafinesque, 1815
Gomphroa Westerlund, 1902
Gonamblus Rafinesque, 1831
Gonatochilus Cossmann, 1909
Gonatorhaphe Möllendorff, 1898
Gonatorhyphe Thiele, 1929
Gondola Férussac, 1822
Gongylostomella Pilsbry, 1941
Goniatochilus Cossmann, 1909
Gonioceramus Heinz, 1932
Goniochilus Sandberger, 1875
Goniocornus
Goniodon Herrick, 1888
Goniodromus Buelow, 1905
Goniodus Dunker, 1848
Goniogalea Mörch, 1857
Goniognathmus Crosse & Fischer, 1875
Goniomactra Mayer, 1867
Goniomeris Choffat, 1893
Goniomerys Dacqué, 1933
Gonionema Koken, 1896
Gonionenia Pilsbry, 1926
Gonionowakiidae
Gonioptychoceras Lange, 1941
Goniosoma Conrad, 1869
Goniostoma Adams, 1860
Goniostropha Oehlert, 1888
Goniotarbus Petrunkevitch, 1949
Goniowakia Ruan & Mu, 1984
Goniscala Marwick, 1943
Gonodon Held, 1837
Gonodus Musketov, 1913
Gonoidon Herrick, 1888
Gonomya Agassiz, 1838
Gonostoma Binney, 1878
Gonostomopsis Pilsbry & Tryon, 1889
Gonoxyites Buckman, 1924
Gonyostoma Swainson, 1840
Goodrichia Clench, 1929
Goosensia Clessin, 1887
Gorgina Preston, 1909
Goria Gamble, 1891
Gostoma Ancey, 1883
Gotlandellitidae
Goumierium Monterosato, 1910
Gourmierium Jousseaume, 1894
Govia Trinchese, 1885
Gowericeras Buckman, 1921
Grabanites Sun, 1947
Grabauia Yen, 1935
Grabauoceras Shimizu & Obata, 1935
Gracilisphincta Buckman, 1920
Gracilithecidae Syssoiev, 1972
Gradiella Lyashenko, 1969
Gradilucina Cossmann, 1902
Graeca Böttger, 1877
Graellsiana Bourguignat, 1884
Grahamites Kilian & Reboul, 1909
Graja Böttger, 1878
Grandicornus
Grandipatula Cossmann, 1889
Granella Dall, 1920
Graniana Caziot, 1910
Granianana Caziot, 1910
Granifera Wagner, 1907
Granigeriana Locard, 1889
Granitza Dall, 1920
Granodomus Pilsbry, 1931
Granoennea Wenz, 1920
Grantitheca Malinky, 1989
Granucis Dall, 1920
Granulaptychus Trauth, 1927
Granularion Germain, 1911
Graphonaias Fischer & Crosse, 1894
Graptophysa Yen & Reeside, 1946
Graptostele Pilsbry, 1919
Graptotheca Salter, 1873
Grateloupea Gray, 1838
Grateloupina Dall, 1902
Gratteloupia d'Orbigny, 1852
Gravidiana Locard, 1890
Grayana Betta, 1870
Gredleriella Möllendorff, 1884
Greggiella Baker, 1941
Greggsia Cossmann, 1925
Gropena Iredale, 1944
Gryphaeigenus Renier, 1804
Gryphites Schlotheim, 1813
Gryphorhynchus Meek, 1864
Gryphus Gray, 1847
Guajaibona Torre & Bartsch, 1941
Guamia Baker, 1938
Gudeella Preston, 1913
Guetera Gray, 1840
Guettera Adams, 1856
Guibaliceras Buckman, 1918
Guilia Pallary, 1926
Guillarmodia Baker, 1941
Gulielmites Buckman, 1923
Gundlachtudora Torre & Bartsch, 1941
Gunnellodus Wilimovsky, 1954
Gurleyites Mathews, 1929
Gurleyoceras Miller, 1932
Gussonea Monterosato, 1912
Gutierrezium Torre & Bartsch, 1938
Guyona Risbec, 1928
Guyonia Risbec, 1928
Gwynjeffreysia Crosse, 1885
Gymnanadenus Bhatia, 1926
Gymnoceratites Schrammen, 1928
Gypsobia Tausch, 1886
Gypsus Paetel, 1875
Gyrazonatheca Qian, 1978
Gyrinea Mörch, 1877
Gyrinella Dall, 1924
Gyrobis Paetel, 1875
Gyrocerus King, 1844
Gyrocion Pilsbry, 1904
Gyrolecanites Spath, 1934
Gyromegalites Buckman, 1925
Gyromelania Wenz, 1939
Gyrophiceras Spath, 1934
Gyrophioceras Spath, 1924
Gyrorbis Fitzinger, 1833
Gyrostoma Hesse, 1909
Gyrostomella Hesse, 1911
Gyrostropha Ancey, 1887
Gyrotrema Bigsby, 1868
Gyroxis Pilsbry, 1903
Haaniceras Bayle, 1878
Haasiella Lindholm, 1925
Habropoma Fischer & Crosse, 1880
Hadraxon Oppenheim, 1892
Hadroceratites Schrammen, 1928
Hadrochilus Cossmann, 1909
Hadrodon Yen, 1952
Haeratula Herrmannsen, 1847
Haeretula Herrmannsen, 1847
Hagenowiceras Lange, 1923
Haidaia Crickmay, 1930
Haldemania Clessin, 1882
Haldemanina Dall, 1905
Haldra Dall & Bartsch, 1904
Halinomilda Dybowski & Grochmalicki, 1923
Haliotidarius Froriep, 1806
Haliotidea Swainson, 1840
Haliotidigenus Renier, 1804
Haliotites Herrmannsen, 1846
Halocochlea Bartsch, 1932
Halophiala Perner, 1925
Halopsyche Verrill, 1880
Halozonites Pilsbry & Cooke, 1941
Hamatoconus
Hamellus Herrmannsen, 1846
Hamineobulla Habe, 1950
Hammelloceras Shimizu & Obata, 1935
Hammonia Herrmannsen, 1852
Hamulisphinctes Buckman, 1921
Hamus Mörch, 1852
Hamya Bourguignat, 1885
Handmannia Cossmann, 1890
Hanieloceras Miller, 1933
Hanleyatypus Bergenhayn, 1930
Hannonia Pallary, 1920
Hantkenia Fischer, 1885
Hapalomia Röder, 1882
Hapalomya Röder, 1882
Hapalus Albers, 1850
Hapata Gray, 1856
Haphohelix Ihering, 1929
Haploceramus Heinz, 1932
Haplodon Agassiz, 1846
Haplohelix Pilsbry, 1919
Haplomena Baker, 1931
Haplonepion Pilsbry, 1919
Haplophrentis Babcock & Robison, 1988
Haplopupa Pilsbry, 1898
Haploscapha Conrad, 1875
Haplostemma Dall, 1895
Haplothaerus Conrad, 1874
Happiella Baker, 1925
Haptochlaena Grimpe, 1922
Harmandia Rochebrune, 1882
Harmonia Hartman, 1881
Harmozica Lindholm, 1927
Harpalis Link, 1807
Harpalites Paetel, 1875
Harpalus Godwin-Austen, 1872
Harparia Rafinesque, 1815
Harpatites Krueger, 1823
Harpax Parkinson, 1811
Harpeola Dall, 1907
Harperspira Bandel, 2002
Harpidochiton Hoare & Cook, 2000
Harpigenus Renier, 1804
Harpoceratidarum Buckman, 1924
Harpopsis Mayer, 1876
Harpoxyites Buckman, 1924
Hartmannia Newton, 1891
Haselbubgites Buckman, 1920
Haselbudgites Cossmann, 1921
Haselburgites Buckman, 1920
Haselbutgites Cossmann, 1921
Hatina Gray, 1842
Haustellodoris Bergh, 1875
Haustorium Scudder, 1882
Hautkenia Eastman, 1900
Hautlecoeuria Paetel, 1888
Hauttecoeuria Bourguignat, 1885
Haydenites Diener, 1905
Hazaya Soos, 1909
Heathilla Hannibal, 1912
Hebetodiscus Baker, 1929
Heckingiana Locard, 1889
Hecticoceratoides Spath, 1924
Hectostoma Raspail, 1830
Hedyle Bergh, 1896
Heinemannia Sacco, 1887
Heinrichites Diener, 1921
Helaposa Iredale, 1941
Helcopoma Caziot, 1910
Heldia Hesse, 1926
Helena Hartman, 1881
Helenchus Gray, 1847
Helenograta Dybowski & Grochmalicki, 1923
Helenopachnodus Germain, 1932
Helenopupa Pilsbry & Cooke, 1920
Helerigone Strand, 1910
Heleuchus Herrmannsen, 1847
Helicamastra Pilsbry & Vanatta, 1905
Heliceras Fischer, 1882
Helicerus Dana, 1848
Heliciella Costa, 1861
Helicigenus Renier, 1804
Helicinigenus Renier, 1804
Helicobulimus Möllendorff, 1890
Helicobulinus Broderip, 1841
Helicocerus Herrmannsen, 1852
Helicodes Herrmannsen, 1852
Helicodon Ehrenberg, 1831
Helicogena Risso, 1826
Helicoides Gray, 1855
Helicomarpha Möllendorff, 1898
Helicophlegma d'Orbigny, 1836
Helicophora Gray, 1842
Helicoplegma Gray, 1840
Helicostoa Lamy, 1926
Helicosyrinx Baur, 1864
Helicter Pease, 1862
Helicteres Beck, 1837
Helictopsis Paetel, 1888
Helictostylus Knight, 1934
Heligmotoenia Cossmann, 1921
Helioceramus Heinz, 1932
Heliocerus King, 1844
Heliomane Moquin-Tandon, 1856
Heliomanes Kobelt, 1871
Heliopsis Pilsbry, 1933
Helioradsia Thiele, 1893
Heliotropis Dall, 1873
Helle Hesse, 1916
Hellenica Böttger, 1877
Hellia Schafhäutl, 1863
Hemiarthrumtypus Bergenhayn, 1930
Hemiastoma Cossmann, 1918
Hemiauricula Deshayes, 1864
Hemibactrites Shimanskii, 1954
Hemibia Heude, 1890
Hemicardia Fleming, 1818
Hemiceras Eichwald, 1856
Hemicricus
Hemicrypta Agassiz, 1845
Hemicyclodonta Deshayes, 1850
Hemicyclostoma Chitty, 1857
Hemidiscors Rovereto, 1898
Hemidoris Stimpson, 1855
Hemientolium
Hemilastena Agassiz, 1852
Hemiloma Rafinesque, 1820
Hemilonia Paetel, 1875
Heminautilinus Hyatt, 1884
Hemipirena Rovereto, 1899
Hemisepiola Grimpe, 1922
Hemisolasma Rafinesque, 1831
Hemisonneratia Casey, 1952
Hemispiticeras Spath, 1925
Hemistenotrema Böttger, 1897
Hemitaxa Wenz, 1923
Hemitaxia Sandberger, 1873
Hemitenagodes Rovereto, 1899
Hemithalamus Leach, 1831
Hemithalasmus Paetel, 1889
Hemithecellidae Stinchcomb & Darrough, 1995
Hemithersitea Savornin, 1914
Hemitricha Clessin, ?, 1892
Hendersonia Wagner, 1905
Hendersonida Torre & Bartsch, 1938
Hendersonoma Torre & Bartsch, 1938
Hendrikia Preston, 1913
Henga Iredale, 1941
Henrisoma Pallary, 1901
Hensenioteuthis Pfeffer, 1900
Henslowiana Fagot, 1892
Henterum Hübner, 1810
Hepata Paetel, 1875
Hercegovites Kittl, 1903
Hercodonta Agassiz, 1845
Hercoles Montfort, 1810
Hercynellites Schubert, 1995
Hercynia Rafinesque, 1815
Heretula Herrmannsen, 1847
Heripensiana Fagot, 1883
Hermiceratites Paetel, 1875
Hermione Gray, 1852
Heroceramus Heinz, 1932
Heromorpha Bergh, 1873
Herpa Guilding, 1826
Hesperato Schilder, 1932
Hesperidina Dubar, 1948
Hesperites Pompeckj, 1895
Hessea Böttger, 1911
Hesseola Lindholm, 1927
Hetaera Böttger, 1877
Heteramastra Pilsbry, 1911
Heterammonites Coquand, 1880
Heteroaulica Cossmann, 1899
Heterocaprina Munier-Chalmas, 1873
Heteroceramus Heinz, 1932
Heteroctenus Lyashenko, 1955
Heterodens Bonnevie, 1920
Heterofusus Fleming, 1823
Heterohistion Grimpe, 1920
Heteromactra Lamy, 1906
Heteroptera Rafinesque, 1814
Heteroptycha Westerlund, 1884
Heteroptychia Kennard & Woodward, 1923
Heteropurpura Jousseaume, 1880
Heterosculpotheca Jiang, 1982
Heterosepiola Grimpe, 1922
Heterovaginina Kraus, 1953
Heterovalvata Munier-Chalmas, 1879
Heterunio Lindholm, 1932
Hettangia Buvignier, 1852
Heudeana Frierson, 1922
Heudiella Annandale & Prashad, 1924
Heurekoceras Ruzhentzev & Shimanskii, 1954
Hexameres Barrande, 1867
Hexamorion Barrande, 1867
Hexitheca Sysoev, 1972
Heynemannia Malm, 1867
Hialaeus Montfort, 1810
Hiata Zetek & Mclean, 1936
Hidalgoiana Fagot, 1891
Hieliciella Monterosato, 1884
Hierifalchia Fucini, 1906
Hijabia Godwin-Austen, 1897
Hildapina Iredale, 1940
Hilobites Stolley, 1929
Himanthopoda Latreille, 1825
Himatella Bergh, 1891
Himella Adams, 1860
Himotopoda Paetel, 1875
Hippocardiidae Pojeta & Runnegar, 1976
Hippocephaloides Herrmannsen, 1852
Hippoctenites Herrmannsen, 1847
Hipponea Rafinesque, 1815
Hippopigenus Renier, 1804
Hippostratites Buckman, 1924
Hippothoe Rafinesque, 1815
Hipterus Herrmannsen, 1847
Hirtocerithium Monterosato, 1910
Hirudinaria Scacchi, 1833
Hirundella Gray, 1850
Hirundigenus Renier, 1804
Hirundinaria Paetel, 1875
Hisingeria Ulrich & Scofield, 1897
Hispaniana Locard, 1889
Hispaniolana Pilsbry, 1933
Hispidana Fagot, 1883
Hispidiana Fagot, 1883
Hispidula Tapparoni-Canefri, 1879
Histiochromius Pfeffer, 1912
Histiophorus Pease, 1860
Histrio Pfeiffer, 1854
Histryx Cossmann, 1903
Hochstetteria Vélain, 1877
Hodopoeus Pilsbry & Cockerell, 1945
Hokianga Laws, 1947
Holcomphalia Möllendorff, 1898
Holcopoma Kobelt & Möllendorff, 1899
Holcoscaphites Nowak, 1911
Holcosphinctes Neaverson, 1924
Holcostephanoides Spath, 1924
Holcotachea Pfeffer, 1929
Holcoteuthis Stolley, 1919
Holdhausiella Mendes, 1952
Holeopoma Westerlund, 1903
Holicella Petrbok, 1930
Holocera de Haan, 1825
Holochiton Fischer, 1885
Holocraspedum Cragin, 1893
Hololobus Kittl, 1903
Hololoma Bartsch, 1915
Hololubus Cossmann, 1905
Homala Agassiz, 1846
Homalaxon Bronn, 1848
Homalia Handmann, 1887
Homaloceramus Heinz, 1932
Homatoma Cossmann, 1895
Hombronula Iredale, 1941
Homechioceras Buckman, 1925
Homeochitin Hanger, Hoare & Strong, 2000
Homoctenidae
Homoctenoides Wang Jinxing & Huang Xiaomei, 1990
Homoderma Porro, 1841
Homoeodesma Fischer, 1887
Homoeodonta Cossmann, 1901
Homogyra Agassiz, 1845
Homotama Tapparoni-Canefri, 1879
Homoxynoticeras Buckman, 1925
Hoonsyrnola Nomura, 1938
Hoplikosmoceras Buckman, 1924
Hoplitides Koenen, 1902
Hoploancyloceras Nowak, 1913
Hoploceratites Schrammen, 1928
Hoplomytilus Sandberger, 1856
Horiadacna Dollfus, 1905
Horiodacna Stefanescu, 1896
Hortensiana Caziot, 1883
Hortolus Montfort, 1808
Hortoniceras Buckman, 1922
Horusia Pallary, 1924
Hua Chen, 1943
Huanghoceras Wang, 1922
Huangshandogoconus
Hugia Buckmann, 1904
Humbertiana Locard, 1890
Huttonia Kirk, 1882
Hyalaeus Montfort, 1810
Hyale Shaw, 1805
Hyalea Lamarck, 1799
Hyalinites Buckman, 1924
Hyaloea Lamarck, 1799
Hyalofulgida Monterosato, 1893
Hyalopsis Pease, 1871
Hyattia Buckman, 1899
Hyattina Buckman, 1899
Hybocistis Crosse, 1866
Hybocystis Benson, 1859
Hybogyra Agassiz, 1845
Hybopleura Agassiz, 1845
Hyboyistes Clessin, 1887
Hydastes Parreyss, 1849
Hydatinus Böttger, 1911
Hydracme Haas, 1938
Hydraena Dupuy, 1886
Hydrateredo Watelet, 1876
Hydrocaena Shuttleworth, 1852
Hydrocera Troschel, 1845
Hydrolimax Malm, 1867
Hydrophyga Lindholm, 1927
Hydrostratites Buckman, 1926
Hydrotaena Ryckholt, 1860
Hydrotropa Lindholm, 1927
Hyerifalchia Fucini, 1906
Hygrobium Lowe, 1852
Hygromane Moquin-Tandon, 1855
Hylacantha Bourguignat, 1888
Hyliania Clessin, 1892
Hylostoma Paetel, 1875
Hylotachea Pfeffer, 1929
Hymenaelis O'Donoghue, 1929
Hymenaeolis Costa, ?, 1866
Hyolithidae Nicholson, 1889
Hyolithoconularia Termier, 1950
Hypacria Agassiz, 1845
Hypania Kupffer, 1831
Hypasteroceras Spath, 1923
Hyperostoma Simroth, 1909
Hyperotis Paetel, 1875
Hyperrhytida Watson, 1934
Hyphantra Cossmann, 1889
Hyphantria Handmann, 1887
Hyplaxus Rafinesque, 1815
Hypnaxis Gray, 1847
Hypnoriana Fagot, 1883
Hypobranchaea Adams, 1848
Hypobranchiaea Adams, 1847
Hypocystis Clessin, 1887
Hypogaea Poli, 1791
Hypogaeoderma Poli, 1795
Hypogaudryceras Shimizu, 1935
Hypogella Gray, 1854
Hypoma Pfeiffer, 1879
Hypomphalocirrus Linsley, 1978
Hypopterus Paetel, 1875
Hypoptychus Pilsbry, 1893
Hypopytychus Thiele, 1934
Hyporbulites Breistroffer, 1947
Hypospyroceras Shimizu & Obata, 1935
Hypostoma Albers, 1850
Hypostrema Pfeiffer, 1879
Hypostrongyla Tomlin, 1930
Hypselartemon Wenz, 1947
Hypselia Lowe, 1855
Hypselostyla Pfeiffer, 1868
Hypselostylus Bartsch, 1932
Hypsobia Heude, 1890
Hypsogyra Lindholm, 1927
Hypterus Rafinesque, 1814
Hyptiotheca Bengtson, 1990
Hyrcania Monterosato, 1894
Hyriana Simpson, 1900
Hystrichoceras Hyatt, 1900
Hystrionica Scudder, 1882
Iaronia Pallary, 1924
Ibergiceras Karpinsky, 1889
Ibicicornu Dall, 1924
Ibicornu Wenz, 1928
Icarus Forbes, 1844
Ichnusarion Pollonera, 1890
Ichthyosagena Philippi, 1853
Ichthyosiagon Herrmannsen, 1847
Ichthyosiagones Bourdet de la Nièvre, 1822
Ictis Alder & Hancock, 1847
Idahoella Yen, 1947
Idalia Gray, 1847
Idalina Norman, 1890
Idalla Örsted, 1844
Idiacanthus Gunnell, 1933
Idioceramus Heinz, 1932
Idiotheca Girty, 1909
Idiozaptyx Pilsbry, 1909
Idoleum Paetel, 1889
Idolum Pfeiffer, 1856
Idotea Paetel, 1875
Idotoea Deshayes, 1835
Idriniana Locard, 1890
Iduliana O'Donoghue, 1932
Iduliella Thiele, 1931
Idyopyrgus Kobelt, 1914
Igarkiellidae Parkhaev, 2002
Iheringia Cossmann, 1899
Ikedaella Taki, 1929
Ilia Hartman, 1881
Ilikala Pilsbry, 1911
Illonesta Iredale, 1941
Illunellaria Lindholm, 1924
Illuviosiana Fagot, 1885
Ilyda Clessin, 1879
Ilyiria Fleming, 1822
Ilynerita Martens, 1887
Imerinia Cockerell, 1891
Imerites Rouchadzé, 1933
Imisigenus Renier, 1804
Immersidens Pilsbry & Vanatta, 1900
Imparientinia Lindholm, 1925
Inachus Hisinger, 1837
Inaequiceramus Heinz, 1932
Inaequipecten Ugolini, 1906
Inaures Minding, 1829
Incilicornu Dall, 1924
Inconspicua Wagner, 1909
Incrassatiana Locard, 1890
Incrustata Wagner, 1907
Index Böttger, 1877
Indica Clessin, 1879
Indoclionites Diener, 1916
Indolobites Renz, 1911
Indonenia Ehrmann, 1927
Indopseudodon Prashad, 1922
Indopupa Pilsbry & Cooke, 1920
Indosuccinea Rao, 1924
Indourtemon Forcart, 1946
Inermia Korobkov, 1955
Inflatatheca Qian, Xie & He, 2001
Inflaticornidae Sysoyev, 1968
Inflaticornus
Inflatulum Carpenter, 1858
Infranesopupa Cooke & Pilsbry, 1920
Infundibularia Pfeiffer, 1876
Ingolitotheca
Inliaculus Schaufuss, 1869
Inobittium Monterosato, 1917
Inobseratella Lindholm, 1924
Inoculia Fischer, 1887
Insignicornus Sysoev, 1973
Insolitotheca Landing & Bartowski, 1996
Instabiliana Fagot, 1884
Insubrica Wagner, 1897
Insularia Tapparone-Canefri, 1883
Insulipupa Pilsbry & Cooke, 1920
Intermedia Caziot, 1910
Intermediana Germain, 1903
Intersectiana Caziot, 1910
Interstriata Böttger, 1878
Intha Annandale, 1922
Intusplicata Wagner, 1907
Iodes Gray, 1847
Iodina Mörch, 1860
Iokastelia Renz, 1925
Iopsis Gabb, 1873
Ioteuthion Pfeffer, 1912
Iothmia Geyer, 1912
Iphinöe Adams, 1854
Ipserronea Iredale, 1935
Ipsidula Mörch, 1857
Irenella Gude, 1913
Iridea Swainson, 1840
Iridella Conrad, 1853
Irona Mabille, 1883
Irozonites Clessin, 1888
Isaba Chenu, 1859
Isaea Conrad, 1871
Ischnochitontypus Bergenhayn, 1930
Ischnoglessula Pilsbry, 1919
Ischnopupoides Pilsbry, 1926
Ischnostele Böttger & Haas, 1915
Ischnostrophina Pilsbry, 1933
Ischnula Mörch, 1857
Ischurostoma Bourguignat, 1874
Ischyriniidae Kobayashi, 1933
Isitiella
Isititheca
Isocardigenus Renier, 1804
Isocardium Link, 1807
Isoclanculus Cotton & Godfrey, 1934
Isocordia Bruguière, 1792
Isoculia M'Coy, 1844
Isodoma Deshayes, 1858
Isodon Douvillé, 1912
Isodonta Buvignier, 1851
Isognomum Mörch, 1853
Isognostoma Hartmann, 1840
Isoltia Guppy, 1895
Isonuculana Cox, 1925
Isoperia Scudder, 1882
Isopleura Meek, 1864
Isopleurus Meek, 1864
Ispidula Gray, 1847
Isselentia Collinge, 1902
Isthmia Gray, 1821
Istmia Pini, 1876
Itaborahia Maury, 1935
Itala Böttger, 1877
Itameta Jhering, 1909
Ithyption Dean, 1918
Itinsaites McLearn, 1927
Itiopiana Preston, 1910
Iulus Wollaston, 1878
Iwakiella Hatai, Kotaka & Noda, 1972
Izumonauta Kobayashi, 1954
Jabalconia Zarate, 1952
Jacksonarca Harris, 1946
Jacobella Jeannet, 1908
Jaconia Tryon, 1884
Jacqueminiana Locard, 1889
Jacquotia Roman, 1912
Jaculum Herrmannsen, 1847
Jacuticornus
Jacutolitus
Jadukamia Godwin-Austen, 1920
Jahnnites Hyatt, 1900
Jamesonites Buckman, 1923
Jaminina Dall, 1909
Janaicus Paetel, 1875
Janefla Paetel, 1875
Janella Gray, 1850
Janera Sowerby, 1829
Janinocora Dybowski & Grochmalicki, 1923
Janthinigenus Renier, 1804
Jarava Godwin-Austen, 1882
Jasonella Lindholm, 1927
Jasonilla Macdonald, 1855
Jataronus Bruguière, 1792
Jaubertella Jacob, 1907
Jaubertites Sarkar, 1954
Jaumeia Aguayo, 1943
Jaumeoconcha Ledon, 1945
Javanoceras Martin, 1932
Jeannea Iredale, 1912
Jeffreysilla Thiele, 1925
Jeholoceras Kobayashi & Matsumoto, 1942
Jenacus Mörch, 1853
Jeranea Herrmannsen, 1852
Jerdonia Blanford, 1861
Jesites Montfort, 1808
Joachymia Ruzicka, 1949
Joanisiella Cossmann, 1900
Joannina Waagen, 1907
Joannisia Dall, 1895
Joannisiana Locard, 1889
Jodamia Defrance, 1822
Jojenia Aradas, 1847
Jokajia Clench, 1946
Joleaudella Patte, 1929
Joleaudiella Pallary, 1926
Joossia Pfeffer, 1929
Jordanula Chaster, 1901
Joubertia Bourguignat, 1888
Jourdheuiliana Bourguignat, 1881
Jousseaumeana Locard, 1889
Juannularia Torre & Bartsch, 1941
Jugonia Jousseaume, 1894
Jukesbrownia Cossmann, 1920
Juno Mazyck, 1889
Juragryphaea Arkell, ?, 1934
Jusiana Caziot, 1910
Jusianana Caziot, 1910
Juturna Rafinesque, 1815
Juvavionautilus Mojsisovics, 1902
Kabylia Pallary, 1928
Kabylonowakia Alberti, 1997
Kaiparaites Matsumoto, 1955
Kaladacna Andrussov, 1923
Kalendyma Gude, 1911
Kaliela Clessin, 1892
Kallilytoceras Buckman, 1921
Kalliphenga Haas, 1936
Kallistephanus Buckman, 1921
Kallomastoma Stache, 1889
Kalokonia Wagner, 1905
Kammerkarites Spath, 1924
Kamptechioceras Trueman & Williams, 1925
Kamptocephalites Buckman, 1922
Kanabiceras Reeside & Weymouth, 1931
Kanabohelix Pilsbry, 1928
Kanastephanus McLearn, 1927
Kanilla Sowerby, 1833
Kara Strebel, 1910
Karabaghia Lindholm, 1927
Karaftohelix Pilsbry, 1927
Karakoramoceras Miller, 1931
Karlschmidtia Haas, 1955
Karolus Folin, 1869
Kaschkadakia
Kasperia Godwin-Austen, 1914
Katakosmokeras Buckman, 1925
Katastoma Clench, 1935
Kathadena Iredale, 1941
Katharinatypus Bergenhayn, 1930
Kathocardia Tucker & Wilson, 1932
Katunioides Aksarina, 1978
Kaypericyclus Turner, 1948
Kaznakoviella Lindholm, 1922
Kebinia Vologdin, 1955
Kefersteinia Neumayr, 1891
Kelliola Dall, 1899
Kellyola Cossmann, 1901
Kempia Preston, 1913
Kempioconcha Preston, 1913
Kerakystis Baker, 1938
Keratinites Buckman, 1925
Kergipenion Fletcher, 1938
Ketemecornus Sysoev, 1974
Keynshamites Buckman, 1926
Khairkhaniidae Missarzhevsky, 1989
Khetatheca Missarjevsky, 1989
Kidodia Cox, 1936
Kilvertia Lycett, 1863
Kincaidilla Hannibal, 1912
Kirkia Pollonera, 1909
Kistinaia Haas, 1936
Klecakia Bourguignat, 1880
Kleistopyrazus Sacco, 1895
Kleistoxyites Buckman, 1922
Kleistoxynoticeras Buckman, 1925
Klikaia Böttger, 1909
Klikia Pilsbry, 1894
Klinoptera Dienst, 1935
Kochites Prinz, 1905
Kodymia Ruzicka, 1950
Koilopleura Trask, 1922
Koinodactylites Buckman, 1927
Koleoceras Portlock, 1843
Kolyoceras Teichert, 1929
Komeceras van Hoepen, 1944
Kondiloceras Fucini, 1901
Kondorhaphe Clench, 1949
Koninckispira Bandel, 2002
Koninckoceras Hyatt, 1900
Konophora Hutton, 1879
Koratia Godwin-Austen, 1919
Korenia Friele, 1877
Kosmetopoma Wagner, 1905
Kotuyitheca Missarzhevskii, 1974
Kraikchania
Krakatitza Herrmannsen, 1852
Kreterostephanus Buckman, 1927
Krinickia Folin & Bérillon, 1877
Krynichia Hazay, 1885
Krynickia Kaleniczenko, 1839
Kryptodactylites Buckman, 1926
Kuanchuanella Yue, 1984
Kuesteriella Lindholm, 1924
Kuklokosmokeras Buckman, 1926
Kunyangotheca Qian Yi, 1978
Kuonamkicornus
Kurinuia Marwick, 1942
Kutschmicia Westerlund, 1901
Kuzmichia Norman, 1890
Kwangsispira Hsü, 1935
Kwangsites Sun, 1947
Kygmaeoceras Flower, 1954
Kymatites Waagen, 1895
Labialia Scudder, 1882
Labiata Fabricius, 1823
Labroena Lindholm, 1927
Labrum Mörch, 1853
Lacanniciana Locard, 1880
Laconia Gray, 1855
Laconica Böttger, 1878
Laconsilla Paetel, 1875
Lacrimarion Connolly, 1939
Lacunodon Cossmann, 1888
Lacunoptyxis Cossmann, 1888
Lacunorbis Yen, 1950
Lacustrina Sterki, 1916
Ladas Cantraine, 1841
Ladatheca
Laeiorthalicus Strebel, 1909
Laemadonta Carpenter, 1861
Laeocathaica Möllendorff, 1899
Laeonapaeus Lindholm, 1925
Laeonica Paetel, 1883
Laeorthalicus Strebel, 1909
Laevaptychus Trauth, 1927
Laevicaulus Simroth, 1913
Laevigatiana Bourguignat, 1884
Laevigites Wedekind, 1914
Laeviglandina Pilsbry, 1908
Laevignonus Paetel, 1890
Laevilamellaptychus Trauth, 1930
Laevirostris Simpson, 1900
Laevissima Böttger, 1877
Laevitectum Dall, 1919
Laeviturbo Cossmann, 1918
Laevozebrinus Lindholm, 1925
Lagena Röding, 1798
Lagurium Herrmannsen, 1847
Lagurius Paetel, 1875
Laimadonta Pease, 1868
Lallemannia Tryon, 1884
Lallemantia Mabille, 1868
Lamarckia Gray, 1852
Lamarckiella Möllendorff, 1898
Lamarkia Paetel, 1875
Lamellifera Westerlund, 1890
Lamelliger Ancey, 1884
Lamellilitorina Tryon, 1887
Lamellilittorina Simroth, 1907
Lamellina Pease, 1861
Laminatana Fagot, 1891
Laminitidae
Lampadion Röding, 1798
Lamperostoma Schaufuss, 1869
Lamphrostoma Gray, 1850
Lancinula Scudder, 1882
Langurius Herrmannsen, 1847
Laniger Herrmannsen, 1847
Laniocerus Desmarest, 1859
Laniogerus Blainville, 1816
Laodia Gray, 1868
Lapicidana Caziot, 1910
Lapidosus Simpson, 1900
Laplyzia Radermacher, 1779
Lapparentia Berthelin, 1885
Larogiella Preston, 1914
Lartetella Cossmann, 1921
Lasmonos Rafinesque, 1831
Lateorbis Baker, 1945
Lateribranchaeia O'Donoghue, 1926
Lateribranchiaea Stearns, 1873
Laternoides Yu & Xi, 1977
Lathira Andrzejowski, 1830
Lathyra Agassiz, 1845
Laticornus Mambetov, 1981
Latidorsella Jacob, 1907
Latipes Colosi, 1922
Latischisma Thomas, 1940
Latomus Fitzinger, 1833
Latonia Westerlund, 1889
Latosiliqua Gregorio, 1894
Laua Baker, 1938
Lauhala Baker, 1941
Laurinella Hesse, 1915
Lavacrum Mörch, 1853
Lavignon d'Orbigny, 1845
Lavignona Mörch, 1853
Lazarus Cuvier, 1800
Leaia Jones, 1863
Lecanomphalus Agassiz, 1845
Lechatelieria Pallary, 1926
Lecithoconcha Haas & Wenz, 1925
Leconteia Hyatt & Smith, 1905
Lecythoconcha Annandale, 1920
Ledaspina Marwick, 1931
Legea Westerlund, 1886
Leia Albers, 1850
Leialcadia Wagner, 1907
Leibotheca Qian Yi, 1978
Leioceratites Schrammen, 1928
Leiocheila Albers, 1850
Leiodoma Paetel, 1875
Leiomyalina Frech, 1891
Leiovirgus Haas, 1912
Lejeania Ancey, 1887
Lejocheila Paetel, 1875
Lembulis Beck, 1847
Lemotheuxiana Locard, 1889
Lenalitus
Lenia Martin, 1828
Lens Simpson, 1900
Lenticlymenia Schmidt, 1924
Lenticula Held, 1837
Lenticulana Fagot, 1890
Lenticulariana Caziot, 1910
Lenticulina Férussac, 1821
Lentitrochus Baker, 1941
Leonardia Tapparone-Canefri, 1889
Leonardocheilus Ruzhentzev & Shimanskii, 1954
Leoniceras Douvillé, 1912
Leonites Spath, 1932
Lepas de Costa, 1778
Lephocercus Gray, 1847
Lephrobolus Paetel, 1875
Lepidonowakia Ruan & Mu, 1989
Lepidontoteuthis Robson, 1925
Lepidopleurustypus Bergenhayn, 1930
Lepidozonatypus Bergenhayn, 1930
Lepinota Westerlund, 1889
Lepsia Hutton, 1884
Leptanodonta Wenz, 1927
Leptegonana Woodring, 1928
Leptina Pictet, 1855
Leptobyrsus Crosse & Fischer, 1875
Leptocalina Bequaert & Clench, 1934
Leptocallista Pilsbry, 1904
Leptochilus Cossmann, 1909
Leptocyrtoceras Ulrich, Foerste, Miller & Unklesbay, 1944
Leptodactylites Buckman, 1926
Leptoloma Martens, 1860
Leptomerus Albers, 1850
Leptonaias Crosse & Fischer, 1894
Leptopartula Pilsbry, 1909
Leptopisthosiphon Bartsch, 1946
Leptosiphon Fischer, 1872
Leptospatha Rochebrune & Germain, 1904
Leptospira Swainson, 1840
Leptostega Geyer, 1986
Leptostrigites Buckman, 1924
Leptothyris Conrad, 1875
Leptynoconcha Frech, 1891
Lepyrolobus Schlüter, 1838
Leroya Grandidier, 1887
Leroyia Bourguignat, 1887
Lersiana Caziot, 1912
Lessuerella Perner, 1903
Lethargoceras van Hoepen, 1946
Letheceras van Hoepen, 1946
Letourneuxiana Bourguignat, 1880
Leucarinia Möllendorff, 1893
Leucochila Martens, 1860
Leucochroopis Pfeffer, 1929
Leucochroopsis Böttger, 1908
Leucochylus Wenz, 1921
Leucoma Mörch, 1861
Leucomastus Wagner, 1927
Leuconia Gray, 1847
Leuconix Crosse, 1868
Leucopepla Peile, 1926
Leucopetrites Buckman, 1922
Leucosea Dybowski, 1875
Leucosilla Rafinesque, 1831
Leucostele Thiele, 1927
Leucostoma Swainson, 1840
Leucothea Jukes-Browne, 1913
Leucotis Swainson, 1840
Leucotus Sowerby, 1842
Leurocystis Baker, 1938
Leuronotoceras Foerste, 1928
Leveilleia Cossmann, 1892
Levicepolis Baker, 1943
Leviconcha Waagen, 1907
Levipoma Bartsch, 1946
Levipyrgulina Laws, 1941
Lewisia Chitty, 1857
Leymeria Munier-Chalmas, 1884
Leytia Pilsbry, 1892
Lhotelleria Bourguignat, 1876
Liangulorbis Wenz, 1947
Libratula Pease, 1865
Libratuta Cossmann, 1912
Libyciana Bourguignat, 1889
Licarca Paetel, 1875
Licarea Gray, 1840
Liccaites Kittl, 1903
Lichas Steininger, 1837
Lictoconcha Gregorio, 1880
Lida Beck, 1847
Ligea Dybowski, 1875
Lignaria Rafinesque, 1815
Ligniperda Herrmannsen, 1847
Liguellus Clench, 1946
Ligula Lamarck, 1818
Ligyrokala Liu, 1987
Lilinthiceras Diener, 1903
Lilloettia Crickmay, 1930
Limacella Brard, 1815
Limacellus Mörch, 1864
Limacias Binney, 1879
Limacites Krueger, 1823
Limacopsis Simroth, 1888
Limacosphaera Simroth, 1911
Limarana Fagot, 1884
Limariana Fagot, 1883
Limas Kobelt, 1914
Limbatiana Caziot, 1910
Limbatipupa Cooke & Pilsbry, 1920
Limecola Brown, 1844
Limicena Connolly, 1925
Limicias Rafinesque, 1815
Limigenus Renier, 1804
Limnadea Agassiz, 1846
Limnaeidae
Limnaeoderma Poli, 1795
Limnaeodorma Schaufuss, 1869
Limnium Oken, 1815
Limnoarca Paetel, 1875
Limnobasilissa Hannibal, 1912
Limnodacna Ebersin, 1936
Limnoderma Herrmannsen, 1847
Limnoeus Beck, 1837
Limnoica Gray, 1857
Limnoperegra Chiamenti, 1899
Limnopomus Dall, 1904
Limnopsis Yen, 1952
Limnorea Dybowski, 1875
Limnoscala Raspail, 1909
Limnoscapha Lindholm, 1932
Limnostracites Herrmannsen, 1847
Limnostriata Paetel, 1875
Limnostrita Herrmannsen, 1847
Limnothauma Haas, 1955
Limnoturgida Chiamenti, 1899
Limnovata Chiamenti, 1899
Limnozea Dybowski & Grochmalicki, 1923
Limoarca Münster, 1832
Limopsista Finlay & Marwick, 1937
Limosina Clessin, 1872
Linckengoceras Obata, 1940
Lincurius Paetel, 1875
Lindenipoma Bartsch, 1946
Lindholmia Kozov, 1936
Lindholmiella Ehrmann, 1927
Lindholmomneme Haas, 1936
Lindigia Karsten, 1858
Lindsleya Chitty, 1857
Lindstroemoceras Miller, 1932
Lingurius Herrmannsen, 1847
Linnaeus Pickering, 1861
Linormoceras Kobayashi & Matumoto, 1942
Linteria Adams, 1850
Lioatlanta Dybowski & Grochmalicki, 1920
Liobocageia Pilsbry, 1919
Liocardia Agassiz, 1842
Liochila Martens, 1860
Liocystis Mörch, 1872
Liodomus Agassiz, 1846
Liogryphaea Fischer, 1886
Liogryphea Douvillé, 1904
Liolophuratypus Bergenhayn, 1930
Liomelon Dall, 1907
Lionicula Waterhouse, 2001
Lioplacodes Meek, 1864
Liosarmata Dybowski & Grochmalicki, 1920
Liosoma Conrad, 1874
Liostemma Bartsch, 1906
Liostomus Mörch, 1852
Liostrachus Mörch, 1857
Liotellina Fischer, 1887
Liotiaxis Iredale, 1936
Liouvillea Bédé, 1932
Liparocystis Watson, 1934
Liparotes Pilsbry, 1903
Lipodonta Nitzsch, 1820
Lira Paetel, 1875
Liratina Lindholm, 1906
Lirator Beck, 1838
Liria Gray, 1824
Liriodon Bronn, 1837-38
Liris Conrad, 1871
Liropecten Conrad, 1875
Liroscapha Conrad, 1869
Liroscaphe Paetel, 1875
Lirotheca Malinky & Mapes, 1983
Lirouxana Fagot, 1891
Lisaea Beck, 1847
Lisinskia Brusina, 1897
Lisprelia Iredale, 1941
Lissacme Kobelt, 1910
Lissaptychus Trauth, 1927
Lissembryon Pilsbry, 1933
Lissocardia Meyer, 1847
Lissochilina Kittl, 1894
Lissosoma Kölliker, 1847
Listera Turton, 1822
Listronites Herrmannsen, 1847
Litabella Iredale, 1941
Litharea Gray, 1840
Lithedaphus Owen, 1843
Lithobia Koken, 1902
Lithocarda Rafinesque, 1815
Lithocardiopsis Oppenheim, 1896
Lithocardita Paetel, 1875
Lithocardites Herrmannsen, 1847
Lithocardium Desmarest, 1823
Lithocerithium Monterosato, 1910
Lithochlypus Porro, 1841
Lithoclyphus Paetel, 1875
Lithoclyptus Schmidt, 1847
Lithoclypus Cristofori & Jan, 1832
Lithocystis Godwin-Austen, 1882
Lithodaphus Paetel, 1875
Lithodomidae
Lithogliphus Loerenthey, 1894
Lithoglyphaelus Pana, 2000
Lithoglypter Fitzinger, 1833
Lithoglyptus Paetel, 1875
Litholepas Gray, 1847
Lithoplyphus Paetel, 1875
Lithostreon Herrmannsen, 1847
Lithuites Schlotheim, 1820
Litiopsis Salter, 1866
Litoglyphus Stefani, 1880
Litostylus Kobelt & Möllendorff, 1897
Litratina Starostin, 1926
Littea Forbes & McAndrew, 1846
Littoriniscala Boury, 1887
Littorinomelania Moore, 1899
Lituella Gray, 1847
Lituunculus Barrande, 1867
Lituus Cuvier, 1817
Livanhacia Pilsbry, 1902
Livia Paetel, 1875
Livinhacia Crosse, 1889
Ljaschenkovites Dorodnova, 1994
Lobaria Schumacher, 1817
Loboa Jhering, 1917
Lobodactylites Buckman, 1926
Lobokosmoceras Buckman, 1923
Loboplanulites Buckman, 1925
Locardia Folin, 1880
Loccardia Paetel, 1888
Lochea Moquin-Tandon, 1855
Locklinia Bartsch, 1955
Loerentheya Lörenthey, 1902
Loganiopharynx Wenz, 1919
Logigo Robson, 1926
Lolius Herrmannsen, 1847
Lomastoma Rafinesque, 1819
Lomatostoma Agassiz, 1846
Loncosilla Rafinesque, 1831
Longaeva Menke, 1828
Longidens Maynard, 1896
Longiscala de Boury, 1909
Longitrella Olsson, 1942
Longiverena Pilsbry & Olsson, 1935
Longocapuchones Shimansky, 1947
Longulatus Lyashenko, 1969
Lonosilla Paetel, 1875
Lopadoceras Buckman, 1904
Lopadusaria Monterosato, 1893
Lopedusaria Westerlund, 1901
Lophauchen Möllendorff, 1901
Lophirus Paetel, 1875
Lophocerus Grasset, 1884
Lophopleura Thiele, 1912
Lophura Gray, 1850
Lophuriderma Gray, 1847
Lophurus Gray, 1847
Lorcaniana Bourguignat, 1884
Loricatypus Bergenhayn, 1930
Loricites Dall, 1882
Loringella Iredale, 1929
Lornia Marwick, 1926
Lortetiana Bourguignat, 1884
Lovea Watson, 1876
Lovenedolithes Berg-Madsen, 1999
Lowea Folin & Bérillon, 1878
Loxopteria Frech, 1891
Loxota Agassiz, 1845
Loxotomella Böhm, 1895
Loxotrema Gabb, 1868
Lubricetta Haas, 1928
Lucernella Swainson, 1840
Luchophaedusa Kobelt, 1909
Lucilites Rafinesque, 1832
Lucinigenus Renier, 1804
Lucinopsis Soehle, 1897
Lucitites Paetel, 1875
Lucya Buckman, 1902
Ludificator Baker, 1941
Ludwigella Buckman, 1901
Lugarenia Torre & Bartsch, 1941
Luhuana Scudder, 1882
Lullicola Iredale, 1941
Luna Mörch, 1852
Lunaria Fabricius, 1823
Lunatodorsella Breistroffer, 1947
Lunopsis d'Orbigny, 1850
Luntia Smith, 1898
Lupia Conrad, 1865
Luquillia Crosse, 1892
Lurama Caziot, 1903
Lusitaniana Bourguignat, 1881
Lusoiana Fagot, 1891
Luteacarnea Thiele, 1934
Luticola Agassiz, 1846
Lutrarigenus Renier, 1804
Lutrophora Dall, 1895
Luxuria Modeer, 1792
Luyanhaochiton Yu, 1984
Lychas Paetel, 1875
Lychnopsis Vidal, 1917
Lychnus Matheron, 1832
Lycodes Eastman, 1900
Lycodus Schafhäutl, 1863
Lycta Hartmann, 1840
Lydistratites Buckman, 1932
Lygyrium Herrmannsen, 1847
Lymnadea Swainson, 1840
Lymnadia Sowerby, 1839
Lymneigenus Renier, 1804
Lymnella Rafinesque, 1818
Lymneum Gray, 1847
Lymneus Brard, 1810
Lymnia Agassiz, 1845
Lymnium Oken, 1815
Lymnoderma Gray, 1847
Lyncurius Herrmannsen, 1847
Lyngurium Herrmannsen, 1847
Lyobasis Pilsbry, 1903
Lyogryphaea Couffon, 1918
Lyrcaea Fischer, 1885
Lyrcea Adams, 1854
Lyridon Sowerby, 1823
Lyriodon Bronn, 1834
Lyriostoma Swainson, 1840
Lyroconus Baker, 1927
Lyrocystis Watson, 1934
Lyrodon Goldfuss, 1837
Lyrofusus Gregorio, 1880
Lyropupilla Pilsbry & Cooke, 1920
Lyroscapha Tryon, 1883
Lyrostoma Swainson, 1840
Lyrula Wollaston, 1878
Lysacme Dall & Bartsch, 1904
Lysianassa Münster, 1838
Lysinoe Adams, 1855
Lythoclypus Parran, 1849
Lythoglyphus Moore, 1898
Lythoglypter Paetel, 1875
Lytotropites Spath, 1924
Mabillia Bourguignat, 1876
Macaropoma Kobelt & Möllendorff, 1898
Maceo Pilsbry & Vanatta, 1898
Maceratites Buckman, 1928
Macerovillia Paetel, 1875
Macgillivraya Forbes, 1852
Macgillivraye Jousseaume, 1882
Machrochisma Swainson, 1840
Macilentiana Bourguignat, 1881
Macilentina Locard, 1890
Maclurita de Blainville, 1823
Macomopsis Sacco, 1901
Maconiceras Buckman, 1926
Macquartia Rouillier & Vossinsky, 1848
Macrassiminea Thiele, 1927
Macrenoica Wagner, 1920
Macroarion Hesse, 1926
Macrocephaliceras Buckman, 1922
Macrochasma Dall, 1915
Macrodonta Costa, 1846
Macrodontopsis Thiele, 1931
Macrogonaxis Thiele, 1932
Macrogrammites Buckman, 1928
Macroheynemannia Simroth, 1888
Macrolimen Lea, 1863
Macroon Pilsbry, 1891
Macropalaina Möllendorff, 1897
Macrophaedusa Möllendorff, 1883
Macrophyllum Paetel, 1875
Macrophysa Dall, 1870
Macroptychia Böttger, 1877
Macrorbis Baker, 1938
Macroscenella Wilson, 1951
Macrosteniana Locard, 1890
Macrota Agassiz, 1845
Macrotheca Waagen, 1880
Macrothylacus Wagner, 1930
Macrotyhlacus Wagner, 1930
Macrozonites Wenz, 1919
Mactrigenus Renier, 1807
Mactrina Brown, 1827
Mactrula Risso, 1826
Maculatus Westerlund, 1883
Madagascaria Morelet, 1882
Madarites Buckman, 1921
Maderia Imlay, 1938
Madidana Caziot, 1910
Madrasites Kilian & Reboul, 1909
Madrela Gregorio, 1884
Madrila Fuchs, 1887
Maeotidia Andrussov, 1890
Maerialla Keferstein, 1866
Maesta Kennard & Woodward, 1923
Magachatina Bequaert & Clench, 1936
Magalovalvata Dybowski, 1911
Magdalia Leach, 1852
Magillivraya Schaufuss, 1869
Magneticeras Collignon, 1950
Magula Scudder, 1882
Magulus Monterosato, 1888
Mailleuxia Cossmann, 1920
Mainardia Kobelt, 1896
Makarakia
Malacota Agassiz, 1846
Malania Preston, 1913
Malaptera Piette, 1876
Malinastrum Mabille, 1868
Malino Gray, 1855
Malleigenus Renier, 1807
Malleolus Gray, 1847
Maltzanella Hesse, 1917
Maltzania Hesse, 1908
Malykanotheca Meshkova, 1974
Mamillaria Swainson, 1840
Mammillaria Herrmannsen, 1847
Manana Gabuniya, 1949
Mananopsis Gabuniya, 1949
Mancusiana Locard, 1889
Mangaoparia Vella, 1954
Mangkalia Beets, 1941
Manitoboceras Miller & Youngquist, 1947
Manobittium Monterosato, 1917
Manoceramus Heinz, 1932
Manotrochus Fischer, 1885
Mantellum Röding, 1798
Manulona Ludbrook, 1941
Manureva Baker, 1938
Maoria Pilsbry, 1892
Maoriana Suter, 1891
Maoriconcha Dell, 1952
Maoricrassus Vella, 1954
Maorina Pilsbry, 1892
Maoritellina Finlay, 1926
Mappingia Ludbrook, 1941
Maresia Bourguignat, 1876
Maresiana Bourguignat, 1884
Margariona Dall, 1882
Margaritites Agassiz, 1845
Margaritopsis Thiele, 1906
Margaron Lea, 1852
Margartifera Schumacher, 1816
Margatifera Schumacher, 1823
Margoran Kennard & Woodward, 1926
Margovoluta Sacco, 1890
Mariaella Gray, 1855
Mariana Locard, 1889
Marianella Pilsbry, 1909
Marianna Pilsbry, 1909
Mariona Sowerby, 1889
Marioniana Locard, 1890
Maritiana Caziot, 1910
Maritianana Caziot, 1910
Maritiniana Caziot, 1910
Marquesana Pilsbry, 1909
Marsenia Wood, 1842
Marsyas Oken, 1815
Martaigoides Aksarina, 1999
Marteliella Dautzenberg & Durouchoux, 1914
Martelliceras Schindewolf, 1925
Martensnaias Frierson, 1927
Martha Wagner, 1915
Martinella Jousseaume, 1887
Martinia Handmann, 1887
Martiniana Pallary, 1920
Maruyamaceras Kobayashi, 1931
Mascagnium Chiaje, 1844
Mascarenia Morelet, 1882
Mascaria Angas, 1878
Masckeites Buckman, 1920
Masculus Pilsbry, 1939
Massaihelix Germain, 1913
Massylaea Möllendorff, 1898
Masticeulota Blume, 1925
Mastigeulota Pilsbry, 1895
Mastigoceras Böhm, 1925
Mastigohamites Breistroffer, 1947
Mastigopsis Grimpe, 1925
Mastogyra Ancey, 1881
Mastoides Westerlund, 1896
Matata Hartman, 1881
Matharena Bergh, 1871
Maturipupa Pilsbry, 1926
Maugerella Dall, 1879
Mauicassis Fleming, 1943
Maurerina Alberti, 1980
Mauretanica Kennard & Woodward, 1923
Mauriella Oliver, 1926
Maurina Jousseaume, 1884
Mauritanica Böttger, 1879
Mauronapaeus Kobelt, 1899
Mauxiena Jousseaume, 1884
Maynardia Dall, 1894
Mazastele Iredale, 1936
Mazza Mörch, 1852
Mazzania Wenz, 1923
Mazzinia Oppenheim, 1895
Medea Böttger, 1883
Mediolites Marek, 1989
Medistoma Iredale, 1941
Megabelus Schwetzoff, 1913
Megachatina Bequaert & Clench, 1936
Megachatinops Bequaert & Clench, 1936
Megachatinopsis Bequaert & Clench, 1936
Megachiliana Fagot, 1891
Megachrysia Pilsbry, 1929
Megadesma Bowdich, 1822
Megadomus Swainson, 1840
Megalacme Kobelt & Möllendorff, 1899
Megaleuxina Böttger, 1877
Megaloceramus Heinz, 1932
Megalocochlea Wenz, 1919
Megalomastomoides Bartsch, 1942
Megalonoidea MacNeil, 1935
Megalotachea Pfeffer, 1929
Megalovalvata Lindholm, 1906
Meganema Conrad, 1868
Meganinnia Davidachvili, 1932
Megapelta Mörch, 1857
Megaptygma Conrad, 1862
Megarietites Spath, 1922
Megasiphonia d'Orbigny, 1849
Megaspia Paetel, 1890
Megaspis Kaleniczenko, 1851
Megastomopsis Stache, 1889
Megasystropha Lea, 1864
Megateuthus Hilgendorf, 1880
Megatylotus Fischer, 1885
Meglomastoma Klebs, 1886
Megoptygma Conrad, 1862
Meishucunchiton Yu, 1987
Meitanovitus Qian Yi, 1978
Melabrina Stache, 1880
Meladomus Swainson, 1840
Melafusus Swainson, 1840
Melampoides Yen, 1951
Melanamara Cossmann, 1909
Melanamona Bowdich, 1822
Melanesica Pilsbry, 1909
Melanhippites Crickmay, 1928
Melanigenus Renier, 1807
Melanioplocus Cox, 1954
Melaniorthalicus Strebel, 1909
Melanippa Rafinesque, 1815
Melanites Agassiz, 1846
Melanithes Swainson, 1840
Melanium Busch, 1842
Melanophasia Cossmann, 1909
Melanoptichya Pavlovic, 1926
Melanoptycha Tryon, 1883
Melanoptychia Pavlovic, 1926
Melanosteira Andreae, 1893
Melanostira Cossmann, 1909
Melaphasia Stache, 1889
Melarhaphis Agassiz, 1845
Melas Montfort, 1810
Melasiana Locard, 1889
Melasma Adams, 1854
Melatrina Cossmann, 1909
Meleager Griffith & Pidgeon, 1834
Meleagris Montfort, 1810
Melitolimax Pollonera, 1891
Mellaca Mabille, 1889
Mellea Paetel, 1875
Melossis Oken, 1815
Memonella Iredale, 1941
Mendana Baker, 1938
Mendranoiana Caziot, 1910
Meneghinia Fucini, 1931
Menesthella Nomura, 1939
Menippe Jeffreys, 1867
Menkrawia Beets, 1941
Mennerilites Lyashenko, 1969
Menoides Herrmannsen, 1847
Menomphis Rafinesque, 1831
Mentula Paetel, 1875
Mereldia Ludbrook, 1941
Meretriciana Locard, 1890
Meretricisiana Locard, 1889
Meretrixiana Locard, 1890
Merionassa Simroth, 1907
Merismoconcha Yu Wen, 1979
Meropella Renz, 1948
Merrilliana Clench & Turner, 1948
Mesafra Haas, 1936
Mesaliopsis Thiele, 1929
Mesanodon Crosse & Fischer, 1894
Mesaspis Bourguignat, 1876
Mesasystropha Crosse, 1868
Mesembrinus Albers, 1850
Mesembrionis Hall, 1867
Mesocheilus Till, 1909
Mesochilus Cossmann, 1909
Mesocochliopa Reeside, 1946
Mesodontopsis Pilsbry, 1895
Mesoglypterpes Yen, 1952
Mesonotus Rafinesque, 1815
Mesopachydiscus Yabe & Shimizu, 1926
Mesopotamia Pallary, 1939
Mesopteryx Pilsbry & Olsson, 1945
Mesopyrgium Reeside, 1946
Mesosacella Chavan, 1947
Mesostoma Heude, 1886
Mesostomella Stache, 1889
Mesotachea Pfeffer, 1929
Messageria Bavay & Dautzenberg, 1904
Mesypea Rafinesque, 1815
Metabola Mayer, 1867
Metacampylaea Pilsbry, 1895
Metacephalites Buckman, 1929
Metachloraea Pfeffer, 1929
Metactaeon Thiele, 1931
Metadiancta Möllendorff, 1898
Metadrymaeus Pilsbry, 1926
Metafusus Paetel, 1875
Metaglandina Pfeffer, 1929
Metalycaeus Pilsbry, 1900
Metamastra Hyatt & Pilsbry, 1911
Metamelania Cossmann, 1910
Metaplectoceras Foerste, 1935
Metaptera Rafinesque, 1820
Metara de Morretes, 1952
Metasagerceras Renz, 1948
Metaschistoceras Plummer & Scott, 1937
Metassiminea Thiele, 1927
Metasterkia Pilsbry, 1920
Metaxytes Mascke, 1906
Metazonites Pfeffer, 1929
Metcalfeia Chitty, 1857
Metechioceras Trueman & Williams, 1915
Meteledone Robson & Bidder, 1933
Metharena Crosse, 1872
Methvenia Robson, 1914
Metodonta Pilsbry, 1895
Metodontia Möllendorff, 1886
Meunieria Gregorio, 1922
Mexicanoceras Imlay, 1938
Mexicodiscus Pilsbry, 1926
Micana Gray, 1858
Micans Cossmann, 1899
Micatheca Sysoev, 1972
Michaudia Locard, 1883
Micrabralia Pfeffer, 1900
Micraclis Böttger, 1906
Micrartemon Möllendorff, 1890
Micrelasma Harris & Burrows, 1891
Micrella Bergh, 1899
Microarion Hesse, 1926
Microbaicalia Kozov, 1936
Microcerion Dall, 1915
Microclanculus Cotton & Godfrey, 1934
Microcyclas Raspail, 1909
Microcyclus Simroth, 1896
Microdonella Oehlert, 1881
Microdontella Lebedev, 1944
Microfossa Laseron, 1951
Microhelix Terquem & Berthelin, 1875
Microheynemannia Simroth, 1888
Microliopalaeina Dybowski & Grochmalicki, 1914
Micromena Baker, 1939
Micromilax Hesse, 1926
Micromitra Bellardi, 1889
Micromphalia Lindholm, 1927
Micromphix Pilsbry, 1911
Micronyassia Bourguignat, 1889
Micropeas Connolly, 1923
Micropetasus Möllendorff, 1890
Microphysa Martens, 1860
Micropontica Böttger, 1881
Micropyrgus Conrad, 1866
Microstele Böttger, 1886
Microstylodonta Germain, 1921
Microtrypetes Pilsbry & Lowe, 1933
Microvexillum May, 1929
Migonitis Rafinesque, 1815
Migranaja Hannibal, 1912
Mikenoella Preston, 1914
Mikiria Godwin-Austen, 1918
Mikonoella Pfeffer, 1931
Mikrohedyle Küthe, 1935
Mikroheynemannia Simroth, 1891
Milanowskia Chernova, 1952
Milleroceras Hyatt, 1900
Milletiana Bourguignat, 1881
Millipus Paetel, 1875
Milneedwardsia Bourguignat, 1877
Milneedwardsiana Bourguignat, 1877
Milneedwarsia Sacco, 1897
Miluna Wagner, 1905
Mima Westerlund, 1886
Mimelenchus Iredale, 1924
Mimetostreon Bonarelli & Nagera, 1921
Mimoceramus Heinz, 1932
Mimoceras van Hoepen, 1941
Minacispira Iredale, 1941
Minaretus Scudder, 1882
Mingeria Gray, 1847
Mingreliciana Bourguignat, 1884
Minitheca
Minos Hutton, 1884
Minutiana Fagot, 1892
Minutissima Caziot, 1910
Minutissimana Caziot, 1910
Minymerisma Yu Wen, 1984
Minyongai Godwin-Austen, 1916
Minyongia Godwin-Austen, 1916
Miocenia Sacco, 1890
Miodontopsis Dall, 1903
Mioptychia Wenz, 1920
Miozonites Pfeffer, 1929
Miplioderma Laws, 1940
Mira Böttger, 1877
Mirabellina Böttger, 1878
Miraclis Cossmann, 1912
Miraconcha Bergh, 1908
Miralabrum Pilsbry & Olsson, 1945
Miraldella Bartsch, 1955
Miraldiella Cossmann, 1921
Miralinda Lindholm, 1924
Mirana Scudder, 1882
Miranda Alder & Hancock, 1846
Mirapex Baker, 1939
Mirapupa Cooke & Pilsbry, 1920
Miraradula Baker, 1939
Mirarissoina Woodring, 1928
Miratheca Yue, 1984
Miraverellia Baker, 1922
Mirellia Thiele, 1933
Mirigulella Pilsbry & Cockerell, 1933
Mirilliscala Cossmann & Peyrot, 1922
Mirisiphon Torre & Bartsch, 1941
Mirla Gregorio, 1930
Mirobeliscus Zittel, 1882
Miroconus Baker, 1927
Mirolacuna Wenz, 1939
Mirulinus Monterosato, 1917
Misantla Baker, 1928
Misarana Fagot, 1891
Misile Scudder, 1882
Missioclivus Iredale, 1941
Mistarion Iredale, 1941
Miticardioceras Buckman, 1923
Mitrellina Paetel, 1875
Mitricaulis Pilsbry, 1944
Mitrigenus Renier, 1807
Mitriodon Rochebrune, 1904
Mitrolithes Krueger, 1823
Mitropsis Pease, 1868
Mitrospira Kirk, 1930
Mitrula Gray, 1821
Mittrea Gray, 1854
Mnataia Prantl & Ruzicka, 1955
Moala Baker, 1938
Moaria Chaper, 1885
Modeolus
Modicella Adams, 1855
Modioconcha Hall, 1869
Modiodesma Ulrich, 1924
Modioligenus Renier, 1807
Modiolites Krueger, 1823
Modioloides Walcott, 1889
Modioptera Schindewolf, 1924
Moeliboea Frey & Leuckart, 1847
Moellendorffiella Pilsbry, 1905
Moesia Jekelius, 1944
Mogdale Beck, 1847
Mogulia Waagen, 1880
Mohamedites Toula, 1896
Mojczatheca Dzik, 1994
Mojsisovicsia Steinmann, 1881
Mojsissovicsia Gerhardt, 1897
Molarella Connolly, 1922
Molengraaffites Welter, 1914
Molengraafites Diener, 1915
Molenia Férussac, 1835
Mollistephanus Buckman, 1922
Molmerope Iredale, 1941
Monadea Westerlund, 1902
Monelagmus Paetel, 1875
Monelasmus Agassiz, 1846
Monestieria Cossmann, 1922
Moneteria Jousseaume, 1884
Monica Adams, 1855
Moniliopsidea Tomlin, 1930
Monocaulis Colosi, 1922
Monoconulus Baker, 1941
Monodactylus Mörch, 1852
Monodontarius Duméril, 1806
Monodontella Sacco, 1896
Monodontigenus Renier, 1807
Monodontina Conrad, 1853
Monoeciostraea Thiele, 1934
Monoetia Paetel, 1890
Monomeroceras Sobolev, 1914
Monophora Quoy & Gaimard, 1824
Monoplacophora Odhner, 1940
Monoplocus Cox, 1954
Monoptaxis Jeffreys, 1867
Monoptyxis Cox, 1954
Monotrochus Pallary, 1904
Montagua Gray, 1852
Montaguia Costa, 1866
Montenana Caziot, 1910
Montjavoultia Raspail, 1909
Moolengraaffites Diener, 1923
Mooritheca
Mopaliatypus Bergenhayn, 1930
Mopaliopsis Thiele, 1893
Moquicardium Eberzin, 1947
Moquiniana Locard, 1889
Moreletia Gray, 1855
Moreletiana Locard, 1889
Morelitia Coates, 1925
Moretsia Anonymous, 1837
Morgagnium Chiaje, 1844
Moricandia Pilsbry & Vanatta, 1898
Morio Montfort, 1810
Morionassa Sacco, 1890
Mormurella Nomura, 1939
Mormus Martens, 1860
Mouretia Sowerby, 1835
Mouretus Blainville, 1824
Moutoniana Caziot, 1910
Mucidusiana Locard, 1889
Mucronatana Germain, 1903
Mucroteuthis Abel, 1916
Muensteria Deslongchamps, 1835
Mulleria Férussac, 1824
Multiannulatocyclitidae
Multicoeloceras Buckman, 1926
Multiconidae
Multicostata Maynard & Clapp, 1923
Multidentinia Lindholm, 1925
Multifariidae
Multiplicaria Lindholm, 1924
Multostrophia Maynard, 1894
Munda Böttger, 1878
Mundaria Lindholm, 1924
Municeps Iredale, 1941
Murcia Roemer, 1857
Murcicana Fagot, 1891
Murdochia Ancey, 1901
Muricarius Cossmann, 1918
Muriciarius Duméril, 1806
Muriciformis Herrmannsen, 1852
Muricigenus Renier, 1807
Muricina Desmarest, 1859
Murleyceras Patrini, 1930
Murleyiceras Buckman, 1921
Murraia Russell, 1932
Muscorana Fagot, 1891
Muscoriana Fagot, 1891
Musculites Gesner, 1758
Musiva Wagner, 1905
Mutelina Bourguignat, 1885
Mutyca Adams, 1853
Myacites Schlotheim, 1820
Myalinadonta Tryon, 1884
Myalinodonta Oehlert, 1881
Myalinoptera Frech, 1891
Myarius Duméril, 1806
Myastropha Gray, 1824
Mycena Albers, 1850
Myesota Suter, 1913
Mygastoma Cossmann, 1918
Myiorthalicus Strebel, 1909
Myisca Agassiz, 1846
Myites Herrmannsen, 1847
Mylicotrochus Sarasin, 1899
Myocardia Vest, 1861
Myophoriopsis Wöhrmann, 1889
Myosota Gray, 1847
Myosotiana Caziot, 1910
Myosotidiana Bourguignat, 1884
Mysca Turton, 1822
Mytilarius Froriep, 1806
Mytilidonta Brunelli & Cannecci, 1944
Mytiligenus Renier, 1807
Mytilina Cantraine, 1837
Mytilinia Kennard & Woodward, 1926
Mytilites Wahlenberg, 1821
Mytilodonta Coen, 1935
Mytiloida Brongniart, 1834
Mytilomorpha Hind, 1899
Mytilomya Bronn, 1838
Mytolimax Schaufuss, 1869
Mytolomia Paetel, 1875
Mytulites Gesner, 1758
Mytylimeria Troschel, 1838
Myxostomella Pfeiffer, 1852
Mzezzeniceras Basse, 1953
Nachaeroplax Sowerby, 1903
Naegelea Hesse, 1918
Naegelia Gude, 1921
Naevosa Böttger, 1878
Naia Swainson, 1840
Naiaditas Richardson, 1903
Naiadopsis Mendes, 1952
Naiaua Baker, 1938
Naidea Swainson, 1840
Nailsworthia Cox, 1954
Nakuruella Preston, 1914
Namadoceras Vredenburg, 1907
Namibiella Zilch, 1954
Nana Wagner, 1897
Nanggullania Martin, 1914
Nannina Buckman, 1927
Nannocassis Iredale, 1927
Nannoceras Buckman, 1923
Nannoceratites Schrammen, 1928
Nannonaia Haas, 1913
Nanopatula Pfeffer, 1929
Nanusiana Locard, 1889
Nanzhanguncus Xue, Zhou & Chen, 2004
Nargicardium Eberzin, 1947
Naridista Laws, 1939
Nasopsis Moore, 1898
Nassacites Krueger, 1823
Nasseburna Gregorio, 1890
Nassigenus Renier, 1807
Nassopsidia Martens, 1897
Nassopsis Smith, 1890
Nasus Simpson, 1900
Natalia Godwin-Austen, 1897
Natere Gray, 1858
Naticaria Gray, 1840
Naticella Guilding, 1840
Natichigenus Renier, 1807
Naticina Macgillivray, 1843
Naticites Krueger, 1823
Naticodon Ryckholt, 1852
Naucum Schumacher, 1817
Nauplius Herrmannsen, 1847
Nausimacha Gistl, 1847
Nauticaria Scudder, 1882
Nauticon Rafinesque, 1815
Nautilina Stein, 1850
Nautilites Prinz, 1906
Nautilopsis Conrad, 1847
Navarchus Cooper, 1863
Navarricana Caziot, 1910
Naxensiceras Fucini, 1931
Naytia Adams, 1853
Neactinoceras Spath, 1924
Neancycloceras Spath, 1926
Neanites Hyatt & Smith, 1905
Neaplysia Cooper, 1863
Neaspidoceras Spath, 1931
Necaxa Baker, 1928
Neclarina Iredale, 1943
Necoidena Iredale, 1941
Necopupina Iredale, 1937
Necromantes Gistl, 1848
Nectia Gray, 1840
Necvidena Iredale, 1941
Nedhamia Paetel, 1875
Needhamia Carus, 1839
Neglecta Wagner, 1897
Neglectiana Fagot, 1883
Negopenia Iredale, 1941
Negotobba Iredale, 1941
Neia Hatai & Nisiyama, 1949
Neilimenia Paetel, 1875
Neklania Pribyl & Ruzicka, 1953
Nelata Fischer, 1885
Nelegerocornidae
Nelegerocornus Meshkova, 1974
Neleta Gray, 1868
Nemalix Rafinesque, 1832
Nematura Sowerby, 1837
Nemertilites Fuchs, 1895
Nemites Gistl, 1847
Nemocephala Costa, 1867
Nemofusus Cossmann, 1903
Nemoraliana Caziot, 1908
Nemrodia Pallary, 1939
Neniastrum Bourguignat, 1876
Neniopsis Wenz, 1920
Neoacteocina Kuroda & Habe, 1952
Neoanaptychus Nagao, 1931
Neobactrotheca Marek & Isaacson, 1992
Neocalliphylloceras Besairie, 1936
Neocatillus Fischer, 1886
Neochilus Stefani, 1877
Neocryptochorda Clark & Durham, 1946
Neogaudryceras Shimizu, 1935
Neoglessula Pilsbry, 1909
Neohoplites Gerth, 1921
Neohyalimax Simroth, 1896
Neojanella Cockerell, 1891
Neomadrasites Marshall, 1926
Neomecklenburgia Simroth, 1920
Neomeklenburgia Simroth, 1920
Neomonopleura Hodson & Harris, 1931
Neopauxillites Malinky, 1989
Neopisidium Odhner, 1921
Neoprionoceras Spath, 1928
Neopupina Kobelt, 1902
Neosaynella Casey, 1954
Neoserbica Wagner, 1919
Neostacheoceras Toumansky, 1937
Neothrincoceras Ruzhentzev & Shimanskii, 1954
Neovolvaria Fischer, 1883
Neowutinoceras Shimizu & Obata, 1935
Neozelandia Cossmann, 1918
Nephteusa Monterosato, 1888
Nepioteuthion Pfeffer, 1912
Neposiella El-din Mahmoud, 1953
Neptheusa Leach, 1852
Nerea Lesson, 1831
Nereis Conrad, 1860
Nereites Emmons, 1846
Nereitopsis Green, 1899
Neretina Fleming, 1828
Nereus Rafinesque, 1815
Neridotonta Brusina, 1884
Neripterum Gray, 1847
Neritaea Andrussov, 1912
Neritaeformis Herrmannsen, 1852
Neritarius Duméril, 1806
Neritena Swainson, 1835
Nerites Perry, 1811
Neriticonus Tryon, 1883
Neritiformis Paetel, 1875
Neritinigenus Renier, 1807
Neritites Gesner, 1758
Neritoclithon Baker, 1924
Neritoconus Kobelt, 1871
Neritodonta Brusina, 1884
Neritoides Meuschen, 1779
Neritomopsis Waagen, 1880
Neritonta Andrussov, 1923
Neritonyx Andrussov, 1912
Nerodenkoina Komarov, 2003
Nesanassa Pilsbry & Cooke, 1934
Nesiberus Haas, 1934
Nesiotus Schaufuss, 1869
Nesis Sacco, 1901
Nesobia Ancey, 1887
Nesodagys Cooke & Pilsbry, 1920
Nesonaia Haas, 1913
Nesopuparia Pilsbry, 1926
Nesopupilla Pilsbry & Cooke, 1920
Nesoreus Baker, 1938
Nesostrobilops Pilsbry, 1931
Nethea Buch, 1839
Neumayriceras Rollier, 1909
Nevadinella Lütke, 1985
Nevesta Barrande, 1881
Newellipectinia Waterhouse, 2001
Newtonella Dainelli, 1915
Niaa Lea, 1836
Niaea Mörch, 1853
Niciensiana Caziot, 1908
Nicolasia Oppenheim, 1895
Nicteis Rafinesque, 1815
Nigricansiana Fagot, 1891
Nigricula Cossmann, 1899
Nigriculina Rovereto, 1899
Nigritella Martens, 1860
Nikatheca
Nilauria Stenzel, 1935
Niloticiana Bourguignat, 1880
Ningqiangethus Qian, Xie & He, 2001
Ninnia Westerlund, 1903
Ninniopsis Tomlin, 1930
Nioma Gray, 1842
Niomia Gray, 1840
Niona Paetel, 1887
Niphonia Adams, 1860
Nisopsis Matheron, 1888
Nitensiana Caziot, 1910
Nitida Wagner, 1907
Nitidana Caziot, 1910
Nitidiana Fagot, 1883
Nitidosana Caziot, 1910
Nitoricornus Sysoev, 1973
Niunea Brusina
Nivigena Iredale, 1930
Nobilia Gray, 1855
Nobiliscala de Boury, 1917
Nodifaunus Olsson, 1944
Nodosiana Bourguignat, 1884
Nodosolarium Sacco, 1892
Nodularia Conrad, 1853
Nodularidia Cockerell, 1901
Nodulestea Iredale, 1955
Noicia Gray, 1868
Noidea Schaufuss, 1869
Nolimenia Laporte, 1843
Nomma Pallary, 1924
Nomodactylites Buckman, 1927
Nona Adams, 1854
Nordenskjoldia Wilckens, 1910
Nortonia Wilson, 1889
Norvegia Vayssière, 1898
Notabilitus
Notaculites Kobayashi, 1945
Nothamusium Hind, 1904
Nothapalinus Connolly, 1923
Nothus Albers, 1850
Notomya Cotton, 1931
Notoptycha Agassiz, 1845
Notoptychia Ehrmann, 1927
Notoscabrotigonia Dietrich, 1933
Notosiphone Gray, 1842
Nototrema Agassiz, 1846
Notrema Rafinesque, 1819
Nouletiana Fagot, 1891
Novitatidae Sysoyev, 1968
Novitatus
Novovaginula Thiele, 1931
Nowakiidae
Nowoctenus Alberti, 1997
Nsendwea Dupuis & Putzeys, 1923
Nubecula Mörch, 1852
Nubigenana Fagot, 1885
Nubilusiana Locard, 1889
Nuciscus Dall, 1920
Nucleus Fabricius, 1823
Nucolopsis Woodring, 1925
Nucularia Conrad, 1869
Nuculigenus Renier, 1807
Nucum Latreille, 1825
Nudifaba Eames, 1951
Nuggetia Wilckens, 1927
Numidia Issel, 1885
Numidicana Caziot, 1910
Numisea Rafinesque, 1815
Nyassana Bourguignat, 1889
Nyassella Bourguignat, 1889
Nyassia Bourguignat, 1889
Nyassomelania Bourguignat, 1889
Nyeboeconus Peel, 1994
Nympha Mörch, 1853
Obbiberus Haas, 1935
Obbina Semper, 1873
Obbinula Stache, 1880
Obescrobs Iredale, 1955
Obesitena Iredale, 1943
Oblicitus Rafinesque, 1815
Obligoptychia Westerlund, 1884
Obliquarca Sacco, 1898
Obliquata Frierson, 1927
Obliquatheca
Oblisicornus
Oblongana Caziot, 1910
Oblongites Rafinesque, 1815
Oboedalites Marek, 1982
Obovatus Mathews, 1929
Obscura Wagner, 1897
Obscuriana Fagot, 1891
Obstructio Haas, 1939
Obvoluta Scudder, 1882
Obvolutiana Caziot, 1908
Ocana Adams, 1861
Occultator Pilsbry, 1926
Oceana Hall, 1867
Oceanesia Baker, 1938
Oceania Reichenbach, 1828
Oceanus Montfort, 1808
Ocellaria Weinkauff, 1881
Ochrodermatina Thiele, 1931
Ochsneria Dall, 1920
Octagoniceras Spath, 1924
Octomeia Rafinesque, 1815
Octomeres Barrande, 1867
Octopoda Gray, 1821
Octopodia Grimpe, 1925
Ocynoe Oken, 1829
Ocyperas Kobelt, 1905
Odatelia Rafinesque, 1832
Odomphium Rafinesque, 1831
Odoncincta Gray, 1847
Odoncineta Costa, 1829
Odoncinetus Herrmannsen, 1847
Odontalus Parreyss, 1849
Odontidium Philippi, 1836
Odontina Zborzewski, 1834
Odontobelus Naef, 1922
Odontochasma Tomlin, 1930
Odontocincta Gray, 1847
Odontocineta Agassiz, 1846
Odontocinetus Fischer, 1887
Odontogriphus Conway Morris, 1976
Odontogyrorbis Loerenthey, 1911
Odontohydrobia Pavlovich, 1927
Odontolkites Buckman, 1925
Odontomphalum Agassiz, 1846
Odontoperna Frech, 1902
Odontosma Arango, 1865
Odontostylus Gray, 1840
Odontotachea Pfeffer, 1929
Odontotropis Agassiz, 1846
Odontura Fischer & Crosse, 1872
Odorthus Rafinesque, 1815
Odostomopsis Whitfield, 1891
Odostoncopsis Cossmann, 1901
Odostonopsis Blanckenhorn, 1927
Odotropis Rafinesque, 1819
Oecoptychoceras Buckman, 1920
Oecostephanus Buckman, 1921
Oedania Buckman, 1904
Oedichilus Lindholm, 1925
Oene Conrad, 1875
Oenone Hartman, 1881
Ogerieniana Locard, 1890
Oigospira Mörch, 1872
Oithonella Mörch, 1857
Okioceras Obata, 1940
Okribella Kakhadze, 1942
Okunominetania Ichikawa, 1954
Olana Adams, 1854
Oleanella Caster, 1930
Oligochiton Berry, 1922
Oligomita de la Torre, 1950
Oligoptychia Böttger, 1877
Olinodia Dall, 1920
Olivaceana Bourguignat, 1889
Olivactaeon de Brun & Chatelet, 1926
Olivaris Arango, 1878
Olivarius Duméril, 1806
Oliveiraia Mendes, 1954
Olivellites Fenton & Fenton, 1937
Oliverato Cooper, 1894
Olivieriana Bourguignat, 1884
Olivigenus Renier, 1807
Olivina Mörch, 1852
Olivium Chiaje, 1844
Olygoptychia Paetel, 1889
Omadimeroceras Sobolev, 1914
Omalaxon Herrmannsen, 1847
Omalenlina Liu, 1987
Omalia Ryckholt, 1853
Omalodiscus Benson, 1855
Omalota Scudder, 1882
Omnivaga Kolesnikov, 1939
Omocyrtoceras van Hoepen, 1955
Omphala Scudder, 1882
Omphalinella Baker, 1930
Omphalocrypta Tomlin, 1929
Omphaloploce Agassiz, 1845
Omphaloptyx Böttger, 1874
Omphalosagda Sandberger, 1875
Omphalostyla Schlüter, 1838
Omphernis Rafinesque, 1819
Omphix Pilsbry, 1911
Onchidia Gray, 1847
Onchidiodoris Gray, 1847
Onchidora Cuvier, 1830
Onchites Buelow-Trummer, 1920
Onchytes Buelow-Trummer, 1920
Oncida Paetel, 1875
Oncoceramus Heinz, 1932
Oncodoceras Hyatt, 1893
Oncostoma Brusina, 1893
Onicebra Tolmer, 1928
Onistia Mörch, 1865
Onithochitontypus Bergenhayn, 1930
Onixa Hooley, 1905
Ontaria Clarke, 1904
Onustis Paetel, 1875
Onychia Sandberger, 1889
Onychina Scudder, 1882
Onychites Zakrzewski, 1886
Onychocardium Whitfield, 1905
Oophaedusa Pilsbry, 1905
Oospiroides Wenz, 1920
Ooterebralia Sacco, 1895
Opalliostyla Pilsbry, 1896
Opatozoon Dzik, 1991
Operculatum Mörch, 1852
Opheoceratites Schrammen, 1928
Ophidermis Agassiz, 1845
Ophideroceras Spath, 1925
Ophigyra Paetel, 1875
Ophilites Roulland, 1831
Ophiodermis Agassiz, 1846
Ophiogra Pfeiffer, 1879
Ophiogyra Albers, 1850
Ophioides Herrmannsen, 1847
Ophiopomorphites Reichenbach, 1828
Ophiospila Ancey, 1887
Ophryoceras van Hoepen, 1942
Ophyogyra Miller, 1878
Opica Kobelt, 1904
Opiliolimax Wenz, 1923
Opilolimax Pini, 1876
Opiptera Rafinesque, 1814
Opipterus Blainville, 1825
Opisastarte Frech, 1922
Opisenia Etallon, 1862
Opisocardium Bayle, 1879
Opisthocoelex Torre & Bartsch, 1941
Opisthocoelops Torre & Bartsch, 1941
Opistholoba Hussey, 1926
Opisthosiphona Bartsch & Henderson, 1920
Oplosoma Costa, 1856
Oppelina Buckman, 1926
Oppenheimiella Pfeffer, 1929
Oppomorus Iredale, 1937
Opponaria Iredale, 1939
Opposirius Iredale, 1931
Opsiceramus Heinz, 1932
Optediceros Leith, 1853
Opterigone Iredale, 1941
Orbiculata Wagner, 1905
Orbiculus Megerle, 1811
Orbignyia Adams, 1859
Orbignyiceras Gérard & Contaut, 1936
Orbipecten Frech, 1891
Orbis Lea, 1833
Orbitina Risso, 1826
Orbitis Scudder, 1882
Orbitula Scudder, 1882
Orbitulites Griffith & Pidgeon, 1834
Orbulita Fleming, 1828
Orbulites Lamarck, 1801
Orcagnia Oppenheim, 1899
Orchadoceras Twenhofel, 1928
Orcholytoceras Buckman, 1926
Oreohomorus Pilsbry, 1919
Oriella Thiele, 1927
Orientoceras Shimizu, 1935
Oriopleura Lacvivier, 1884
Oris Risso, 1826
Orixa Gray, 1852
Orizosoma Pilsbry, 1891
Ormathichnus Miller, 1880
Ornithopus Gardner, 1875
Orobia Martens, 1860
Orodrymaeus Pilsbry, 1926
Orophoceramus Heinz, 1932
Orotocycloceras Kobayashi, 1928
Orphaicus Schaufuss, 1869
Orpharus Hall, 1867
Orpheoceramus Heinz, 1932
Orphnus Albers, 1850
Orpularca Iredale, 1939
Orthalicinus Crosse & Fischer, 1874
Orthalycaeus Pfeiffer, 1876
Orthalycoeus Ancey, 1898
Orthechioceras Trueman & Williams, 1925
Orthoceralites Stoppani, 1857
Orthoceramus Heinz, 1932
Orthoceratitus Herrmannsen, 1847
Orthoceros Brünnich, 1771
Orthoclymenia Wedekind, 1908
Orthoconus Stinchcomb, 1986
Orthodactylites Buckman, 1926
Orthogibbus Germain, 1919
Orthoglyphus Cossmann, 1912
Ortholus d'Orbigny, 1850
Orthomesus Pilsbry, 1888
Orthonotella Miller, 1882
Orthonymus Agassiz, 1852
Orthosteles Paetel, 1875
Orthostelis Philippi, 1844
Orthostoma Conrad, 1838
Orthostrombus Olsson, 1944
Orthostylis Paetel, 1875
Orthostylus Beck, 1837
Orthotheca Holm, 1893
Orthothecidae Syssoiev, 1957
Orthotomium Crosse & Fischer, 1875
Orthriochiton Vendrasco & Runnegar, 2004
Orthurella Sacco, 1890
Orthygia Mörch, 1853
Ortmanniana Frierson, 1927
Ortostelis Aradas & Maggiore, 1843-4
Ortygia Leach, 1827
Orustia Mörch, 1852
Orvillia White, 1887
Oryzosoma Pilsbry, 1891
Oscabrionites Herrmannsen, 1847
Oscabrium Schreibers, 1793
Oscana Bosc, 1797
Oscanaea Renier, 1807
Oscaniopis Pruvot-Fol, 1933
Oscaniopsis Bergh, 1897
Oscarboettgeria Lindholm, 1927
Osmanites Toula, 1896
Osmanoceras Kittl, 1904
Osmyle Herrmannsen, 1847
Osmylus Blainville, 1825
Osorattis Iredale, 1929
Osteochiton Dall, 1886
Osteocollus Herrmannsen, 1847
Osteophorus Philippi, 1893
Ostracarius Duméril, 1806
Ostracita Griffith, 1834
Ostracites Gesner, 1758
Ostracolethe Simroth, 1901
Ostracomorphites Desmarest, 1826
Ostracoteuthis Zittel, 1884
Ostreigenus Renier, 1807
Ostreites Herrmannsen, 1847
Ostrenomia Conrad, 1872
Ostreocamites Defrance, 1826
Ostrites Herrmannsen, 1852
Otahua Marwick, 1948
Otaulax Cossmann, 1888
Otoclymenia Schindewolf, 1923
Ottavia Pallary, 1912
Ottomarites Marek & Galle, 1976
Ottonia Simroth, 1920
Ottonita Strand, 1932
Otus Risso, 1826
Otylopha Paetel, 1875
Otynota Paetel, 1875
Ouroteuthis Hoyle, 1909
Ourotheutis Filhol, 1885
Ovalitheca
Ovatoplax Cotton & Weeding, 1939
Ovella Pfeiffer, 1879
Ovuliana Locard, 1890
Ovuligenus Renier, 1807
Owaraha Baker, 1941
Oxyceramus Heinz, 1932
Oxycheilus Albers, 1850
Oxydacna
Oxylopha Hartmann, 1840
Oxymelania Fischer & Crosse, 1892
Oxynota Hartmann, 1840
Oxyorthalicus Strebel, 1909
Oxyrhombus Fischer & Crosse, 1893
Oxyrhynchus Herrmannsen, 1847
Oxystrombus Mörch, 1852
Oxystyla Schlüter, 1838
Oxytus
Ozaena Menke, 1830
Ozoena Rafinesque, 1814
Ozolis Blainville, 1826
Ozotis Paetel, 1875
Pachecdyceras Flower, 1947
Pacherium Agassiz, 1845
Pachites d'Orbigny, 1846
Pachosteon Rafinesque, 1818
Pachya Albers, 1850
Pachyanodon Martens, 1900
Pachycarocollina Pfeffer, 1929
Pachyceratites Schrammen, 1934
Pachychiloides Wenz, 1939
Pachydupotetia Pfeffer, 1929
Pachygomon Stache, 1880
Pachylabra Swainson, 1840
Pachymilax Böttger, 1884
Pachynilus Weaver, 1916
Pachyodon Stutchbury, 1842
Pachyota Agassiz, 1845
Pachyphaedusa Wenz, 1920
Pachyphallus Hesse, 1918
Pachyplanulites Spath, 1931
Pachysphaera Pilsbry, 1892
Pachystoma Gray, 1840
Pachyta Menke, 1830
Pachytachea Pfeffer, 1929
Pachytes Hoeninghaus, 1830
Pachytheca Qian, Yin & Xiao, 2000
Pachytholus Strebel, 1909
Pachytoma Swainson, 1840
Pachytos Defrance, 1825
Pachytus Agassiz, 1846
Pachytypus Fischer, 1887
Pachyvascoceras Furon, 1935
Paciceras Olsson, 1944
Paclites Montfort, 1808
Paclitus Herrmannsen, 1847
Padangia Babor, 1900
Padola Fleming, 1822
Padolia Oken, 1817
Padollia Montfort, 1810
Paeniscutalus Wartz, 1947
Paestana Westerlund, 1884
Pagana Gistl, 1847
Pagoda Gray, 1842
Pagodella Adams, 1867
Pagodispira Grabau, 1922
Pagoduliana Caziot, 1910
Pakaurangia Finlay, 1927
Palaeanatina Hall, 1835
Palaeaneilo Hall, 1869
Palaeoarca Paetel, 1875
Palaeobulimulus Parodiz, 1949
Palaeobullia Götzinger & Becker, 1932
Palaeoceratia Grundel, 1999
Palaeoclymenia Remelé, 1881
Palaeoconchus Vinn, 2006
Palaeocorbis Conrad, 1869
Palaeocyclophorus Wenz, 1923
Palaeocyclotus Fischer, 1885
Palaeodopsis Westoll, 1944
Palaeoechioceras Spath, 1929
Palaeoglandina Wenz, 1914
Palaeoleuca Wenz, 1922
Palaeolobites Renz, 1909
Palaeomelania Dautzenberg, 1898
Palaeonautilus Remelé, 1880
Palaeonelo Reed, 1922
Palaeonerita Pethö, 1906
Palaeonilo Douvillé, 1912
Palaeonisca Diener, 1926
Palaeoniso Gemmellaro, 1878
Palaeophaedusa Wenz, 1920
Palaeorissoina Grundel, 1999
Palaeosepia Theodori, 1844
Palaeostoa Andreae, 1884
Palaeostrea Grabau, 1936
Palaeotachea Jooss, 1912
Palaeotaia Annandale, 1924
Palaeoturbina Wenz, 1931
Palaeoxestina Wenz, 1919
Palaeozyga Horný, 1954
Palamharpa Iredale, 1931
Palanaptychus Trauth, 1927
Palanatina Hall, 1870
Palangerosa Iredale, 1930
Palaopartula Pilsbry, 1909
Palaptychus Trauth, 1927
Palearca Eastman, 1900
Paleocyclophorus Wenz, 1923
Paleohelix Pilsbry, 1893
Paleoneilo Girty, 1910
Paleonilo Douvillé, 1912
Paleoniso Gregorio, 1930
Paleopupa Foerste, 1893
Paleorbis Diener, 1936
Paleosulcachites Quian Yi, 1977
Palestinarca Vokes, 1946
Palidium Wright, 1855
Palindonaia Modell, 1950
Palizzolia Bourguignat, 1877
Pallasiceras Spath, 1924
Palliata Wagner, 1907
Pallium Schumacher, 1817
Pallizzolia Servain, 1891
Palmaria Desmarest, 1859
Palmarium Montfort, 1810
Paltarpites Buckman, 1922
Paltopleuroceras Buckman, 1898
Paludellina Tryon, 1884
Paludestrinidae
Paludestriniformis Caziot, 1910
Paludinopsis Icke & Martin, 1906
Paludinum Jurine, 1817
Paludotrochus Cossmann, 1921
Palustriana Fagot, 1891
Pammegaliana Bourguignat, 1881
Panderella Ehrenberg, 1858
Pandorigenus Renier, 1807
Panitheca Marek, 1967
Pannona Loerenthey, 1902
Pannonia Pallary, 1916
Pannonicardium Stevanovic, 1951
Panopaea Adams, 1856
Panopeigenus Renier, 1807
Panterinaria Sacco, 1894
Pantherinaria Sacco, 1894
Panticapaea Andrussov, 1923
Pantigua Buckman, 1842
Papalaria Ball, 1915
Papilia Pelseneer, 1889
Papilliceras Buckman, 1920
Papualbinula Iredale, 1941
Papulaoma Iredale, 1941
Papuocyclus Ancey, 1896
Papyrina Mörch, 1853
Papyrotheca Brusina, 1893
Parabalea Ancey, 1882
Parabalia Fischer, 1908
Parabithynia Pilsbry, 1928
Paracallonia Pilsbry, 1903
Paracaloceras Spath, 1923
Paracampeloma Hsü, 1935
Paracanariella Pfeffer, 1929
Paracanarilla Pfeffer, 1929
Paracanthoceras Furon, 1935
Paracardioceras Buckman, 1925
Paracatoraphiceras Zhuravleva, 1994
Paracephalites Buckman, 1929
Paraceramus Heinz, 1932
Paracerastus Thiele, 1933
Paracerion Pilsbry & Vanatta, 1895
Parachatina Bourguignat, 1889
Parachloraea Sandberger, 1873
Parachloritis Ehrmann, 1912
Parachondrella Henderson & Bartsch, 1920
Parachondrodes Clench & Aguayo, 1946
Parachondrula Lindholm, 1925
Paracibolites Hayasaka, 1947
Paraclanculus Finlay, 1927
Paracornus
Paracoroniceras Spath, 1922
Paracoronites Buckman, 1927
Paracoryna Flach, 1890
Paracraticula Oppenheim, 1890
Paradiancta Möllendorff, 1895
Paradidymites Diener, 1916
Paradines Dall, 1924
Paradistoechia Cossmann, 1924
Paragaudryceras Shimizu, 1935
Paraglandina Pfeffer, 1929
Paragloborilus Qian Yi, 1977
Paragoniatites Librovitch, 1938
Parahaminoea Kuroda & Habe, 1952
Parahelix Ihering, 1892
Parahyolithes Poulsen, 1969
Parakolithes
Parakorilithes He & Pei, 1984
Parakymatites Waagen, 1895
Paralecanites Diener, 1897
Paralimax Böttger, 1883
Parallelipipedum Agassiz, 1845
Parallellipipedum Grasset, 1884
Parallelopipedum Jousseaume, 1888
Parallepipedum Jousseaume, 1888
Parallites Westermann, 1954
Paralus Rafinesque, 1815
Paramastra Hyatt & Pilsbry, 1911
Paramicrocornus Qian, Xie & He, 2001
Paranerita Annandale, 1920
Paranoba Laseron, 1951
Paranoma Fischer de Waldheim, 1836
Paranowakiidae
Parapalaeonarica Blaschke, 1905
Parapecten Crickmay, 1930
Parapenascoceras Ruzhentzev & Shimansky, 1954
Paraphaedusa Böttger, 1899
Paraphylloceras Shimizu, 1935
Paraplanorbis Hanna, 1922
Parapodangia Ghosh, 1915
Paraprolecanites Karpinsky, 1889
Parapsiloceras Hyatt, 1900
Paraptera Ortmann, 1911
Pararmenoceras Shimizu & Obata, 1935
Parasagena Dall, 1924
Parascala Cotton & Godfrey, 1931
Paraseptaria Risbec, 1942
Paraspira Dall, 1905
Parastephanites Hyatt, 1900
Paratachea Pfeffer, 1929
Parataxioceras Schindewolf, 1925
Parateinostoma Oppenheim, 1892
Paratilia Thiele, 1924
Paratinostoma Cossmann, 1921
Paratornatina Böttger, 1907
Paratrochoides Tomlin, 1929
Paratrochus Pilsbry, 1893
Paratropis Böttger, 1891
Paraturbonilla Böttger, 1907
Paraturia Spath, 1927
Paraulacosphinctes Schindewolf, 1925
Paravascoceras Furon, 1935
Paravishnuites Spath, 1935
Paravitreops Baker, 1928
Parazaptyx Pilsbry, 1905
Parazonites Pfeffer, 1929
Parechioceras Buckman, 1914
Parellipipedon Scudder, 1882
Parennea Pilsbry, 1919
Parentilites Marek, 1982
Pareuplecta Möllendorff, 1890
Parhydrobia de Morgan, 1920
Parinana Olsson, 1944
Parithea Gray, 1847
Parkeria Gabb, 1881
Parkinsonites Buckman, 1922
Parksoceras Foerste & Savage, 1927
Parkula Bengtson, 1990
Parlicium Iredale, 1935
Parmacellaea Renier, 1807
Parmacellilla Simroth, 1910
Parmacellina Sandberger, 1872
Parmacellus Férussac, 1821
Parmaphora Deshayes, 1832
Parmavitrea Baker, 1931
Parmunculus Collinge, 1899
Paromphalus Grabau, 1936
Paropsis Oehlert, 1888
Parowenites Spath, 1934
Paroxytropidoceras Breistroffer, 1952
Parpupina Iredale, 1937
Parrallelepipedum Horusitzky, 1927
Parreyssiana Bourguignat, 1884
Parthena Albers, 1850
Parthenope Scacchi, 1833
Parthenopea Paetel, 1875
Parthenopia Kosse, 1813
Partiotiana Fagot, 1891
Partschia Böttger, 1911
Partulinella Pilsbry, 1914
Parunio Ping, 1931
Parvati Semper, 1862
Parvicorbis Cossmann, 1891
Parvidactylites Buckman, 1927
Parvoliva Thiele, 1929
Parvulana Fagot, 1891
Pasiphae Gray, 1852
Pasithaea Sowerby, 1842
Pasithea Hartman, 1881
Passamiella Clessin, 1885
Patagioceratites Schrammen, 1928
Patamocorbula Habe, 1955
Patellaria Gmelin, 1793
Patellarius Dumeril, 1806
Patelliconidae
Patelligenus Renier, 1807
Patelliscapha Tomlin, 1929
Patellites Schlotheim, 1813
Patelloides Hombron & Jacquinot, 1841
Patemorphoceras Buckman, 1922
Paterella Hedström, 1930
Pathena Pfeiffer, 1879
Patholites Marek, Malinky & Geyer, 1997
Patinastra Thiele, 1891
Patoceras Meek, 1876
Patuliana Caziot, 1908
Patulina Fagot, 1891
Patulizonites Pfeffer, 1929
Patulopsis Strebel & Pfeffer, 1880
Pauahia Cooke, 1911
Paucidentata Preston, 1916
Paucidentella Thiele, 1933
Paucidentina Martens, 1897
Paulia Bourguignat, 1882
Pauliana Fagot, 1891
Paulodorra Iredale, 1941
Paulovicia Bourguignat, 1880
Pauxillites Marek, 1966
Pauxillitidae Marek, 1967
Paxillus König, 1825
Payenia Mabille & Rochebrune, 1889
Payettia Dall, 1924
Pechaudia Bourguignat, 1881
Pechaudiana Bourguignat, 1884
Pectella Gray, 1840
Pectengonzalez Waterhouse, 2001
Pectinarca Sacco, 1898
Pectinariopsis Andrussov, 1896
Pectinatarca Sacco, 1898
Pectinatarea Cossmann, 1899
Pectiniformites Buckman, 1925
Pectinigenus Renier, 1807
Pectinistemma Rehder, 1940
Pectinoropsis Andrussov, 1896
Pectovitrea Baker, 1931
Pectunculigenus Renier, 1807
Pectunculites Gesner, 1758
Pectunculopsis Ebert, 1890
Pedemontiana Pini, 1885
Pediculariella Thiele, 1925
Pediculariona Iredale, 1935
Pedigenus Renier, 1807
Pedinus Rafinesque, 1815
Pegasella Caster, 1930
Peifferia Pfeiffer, 1878
Pejona Hanna, 1927
Pelagella Gray, 1850
Pelagia Quoy & Gaimard, 1833
Pelagus Montfort, 1808
Pelasga Hesse, 1908
Pelasgia Kobelt, 1908
Pelasgiella Matthew, 1895
Pelatrinia Pilsbry, 1907
Pelecania Scudder, 1882
Pelecanus Piette, 1876
Pelecoceras Hyatt, 1867
Pelecocheilus Albers, 1850
Pelecodiscus Hoepen, 1921
Pelecodites Cossmann, 1924
Pelecostoma Reibisch, 1893
Pelecycheilus Pilsbry, 1895
Pelecypodichnus Seilacher, 1953
Pelekodites Buckman, 1923
Peleliua Baker, 1941
Pelenna Carus, 1868-75
Peleoceras Dacqué, 1934
Pelia Martens, 1860
Pellicula Fischer, 1856
Pellilacunella Powell, 1951
Pellucida Caziot, 1910
Pellucidana Caziot, 1910
Pelopia Adams, 1868
Peloriderma Poli, 1795
Peloridoderma Agassiz, 1846
Peloris Poli, 1791
Peloronta Oken, 1815
Pelorontes Blainville, 1825
Pelsenuria Rochler & Vaney, 1940
Pelta de Quatrefages, 1844
Peltarion Eudes-Deslongchamps, 1858
Peltatus Godwin-Austen, 1908
Peltella Webb & van Beneden, 1836
Peltopleuroceras Trauth, 1909
Peltoraspailites Jeannet, 1951
Pelvis Megerle, 1811
Pelycidium
Penascoceras Ruzhentzev & Shimansky, 1954
Pendactylus Schaufuss, 1869
Peneauiidae
Penecillus Herrmannsen, 1852
Peneptychia Westerlund, 1884
Penita Frierson, 1927
Pennaria Mörch, 1853
Pentadactylus Mörch, 1852
Pentadina Gray, 1834
Pentagoniostoma Branson, 1935
Pentamorion Barrande, 1867
Pentataenia Schmidt, 1855
Penthominea Iredale, 1929
Peotoconus
Peplidea Gray, 1847
Peplidium Paetel, 1875
Pera Alder, 1831
Peraeonoderma Thiele, 1934
Peraptera Dahmer, 1936
Peratoptera Gray, 1840
Percivalia Preston, 1914
Perdix Montfort, 1810
Perdrix Cuvier, 1817
Perenna Guppy, 1867
Perfectiscala Cossmann, 1922
Perforella Rafinesque, 1915
Peribea Rafinesque, 1815
Pericylindrica Tomlin, 1930
Peridactylites Buckman, 1926
Perieria Tapparone-Canefri, 1878
Periodon Rafinesque, 1815
Peripleuroceras Tutcher & Trueman, 1925
Peripleurocyclus Diener, 1905
Periryua Baker, 1941
Perissodon Conrad, 1862
Peristena Paetel, 1875
Perlisia Tomlin, 1948
Pernaridea Paetel, 1875
Pernigenus Renier, 1807
Pernites Krueger, 1823
Peronaeoderma Poli, 1795
Peroneoderma Therese, 1900
Peronium Blainville, 1818
Perostylus Pilsbry, 1894
Perotoptera Paetel, 1875
Perpusilla Baker, 1941
Perrinilla Hannibal, 1912
Perrottetia Kobelt, 1905
Persa Adams, 1855
Persephora Seguenza, 1903
Persicithecidae
Persigula Ayres, 1916
Personatus Westerlund, 1883
Pertunculus
Peruvia Olsson, 1934
Perversana Fagot, 1891
Pestomena Iredale, 1941
Petasia Beck, 1837
Petasiella Gude & Woodward, 1921
Petasotheca Landing & Bartowski, 1996
Petasunculus Herrmannsen, 1847
Petholata Jousseaume, 1881
Petholatus Jousseaume, 1883
Petinoceras van Hoepen, 1944
Petraeocerastus Kobelt, 1902
Petraeomastus Möllendorff, 1901
Petrellinia Crosse, 1885
Petrettinia Bourguignat, 1880
Petricoligenus Renier, 1807
Petrifora Berthold, 1827
Petroderma Kuroda, 1946
Petroglyphus Möllendorff, 1894
Petrophysa Pilsbry, 1926
Petrotrachea Koken, 1889
Petrovitrea Baker, 1931
Pettancyclus Iredale, 1943
Pettretina Wenz, 1929
Petunculites Defrance, 1826
Peverilia Arkell, 1941
Pfaffia Behn, 1844
Pfefferiopsis Ishikawa, 1924
Pfeifferia Gray, 1853
Pfluckeria Lisson, 1924
Phacozonites Wenz, 1932
Phacussia
Phaedra Albers, 1850
Phaenommia Mörch, 1860
Phaenomya Weaver & Palmer, 1922
Phaerusa Cossmann, 1912
Phaiopharus de Morretes, 1952
Phalacroceratites Schrammen, 1928
Phancroporus Cockerell, 1893
Phaneroporus Simroth, 1888
Phanerosphinctes Buckman, 1921
Phaneta Adams, 1871
Phanetia Crosse, 1875
Pharaonia Bourguignat, 1880
Pharaonis Rafinesque, 1815
Pharetrella Hall, 1888
Pharetrinus Philippi, 1853
Pharetrium König, 1825
Pharetrum Keferstein, 1829
Pharomytilus Rollier, 1914
Phaselotus Tryon, 1884
Phasia Leymerie, 1881
Phasianelligenus Renier, 1807
Phasianus Montfort, 1810
Phaulocystis Watson, 1934
Phenacoceras Frech, 1902
Phenacomya Dall, 1898
Phenacotaxus Dall, 1912
Phenomenalina Dybowski, 1911
Pherusa Jeffreys, 1869
Phicaphora Jousseaume, 1882
Philia Oken, 1829
Philippiana Wagner, 1897
Philippiella Pfeffer, 1886
Philippinella Möllendorff, 1899
Philippites Diener, 1905
Philis Fischer, 1861
Phillocaulis Colosi, 1922
Philoceros Bronn, 1863
Philopotamus Layard, 1855
Philopseudes Gistl, 1848
Philopseudis Herrmannsen, 1847
Philyrine Menke, 1844
Phintorene Iredale, 1955
Phisoniscus Gray, 1849
Phlegmodoris Bergh, 1878
Phlyctaenia Cossmann, 1889
Phlyctis Harris & Burrows, 1891
Pholadarius Herrmannsen, 1852
Pholadiarius Duméril, 1806
Pholadigenus Renier, 1807
Pholadites Schlotheim, 1813
Pholalites Schläpfer, 1821
Pholalithes Paetel, 1875
Pholeobius Sowerby, 1825
Pholidaea Swainson, 1840
Pholidea Swainson, 1835
Pholididaea Paetel, 1875
Phonurga Scudder, 1882
Phorculellus Sacco, 1896
Phorculorbis Cossmann, 1918
Phosphorax Webb & Berthelot, 1833
Photina Adams, 1853
Phragmokonus Quenstedt, 1849
Phragmopholas Dall, 1898
Phragmostoma Hall, 1861
Phragmotheca Barrande, 1867
Phrenegibba Iredale, 1941
Phrixgnatus
Phrixolestes Simroth, 1901
Phrynelima Iredale, 1929
Phryxolestes Pilsbry, 1908
Phycodrosus Rehder, 1943
Phycophila Adams, 1861
Phyctaenia Kobelt, 1892
Phygas Wagner, 1914
Phylacus Westerlund, 1887
Phyleris Rafinesque, 1815
Phylicardium Pavlovic, 1928
Phylirine Fischer, 1883
Phyllicardium Andrussov, 1903
Phyllocardium Fischer, 1887
Phyllocaulis Colosi, 1922
Phyllocaulus Hoffmann, 1925
Phyllodella Hertlein & Strong, 1949
Phyllodesmoceras Spath, 1925
Phyllolobites Vadász, 1907
Phyllonaias Fischer & Crosse, 1894
Phylseogrammoceras Buckman, 1901
Phymeroda Rafinesque, 1820
Phymesoda Rafinesque, 1820
Phymotis Rafinesque, 1815
Physetomya Ulrich, 1893
Physospira Böttger, 1914
Physotrema Sandberger, 1875
Pianoconus Paetel, 1874
Picaenia Cossmann, 1919
Picardiana Bourguignat, 1881
Piceata Böttger, 1877
Picenia Fossa-Mancini, 1919
Pichynella
Pierosoma Dall, 1905
Piesetrobelus Pavlov, 1913
Piesotrobelus Stolley, 1919
Piestobelus Cossmann, 1915
Pilea Simpson, 1900
Pilidion Bigsby, 1868
Pilidium Fischer, 1885
Pilorcula Germain, 1912
Pilsbrya Ancey, 1887
Pilsbryus Yen, 1944
Pincerna Preston, 1907
Pindium Humphreys, 1845
Pineda Gardner, 1945
Pinella Stephenson, 1941
Pingiella Baker, 1945
Pinguimacoma Iredale, 1936
Pinguispira Finlay, 1926
Pinguitia Maynard, 1896
Pinnadena Iredale, 1941
Pinnigena Agassiz, 1846
Pinnigenus Renier, 1807
Pinnites Gesner, 1758
Pinnogena Bronn, 1836
Pintadina Blainville, 1826
Pintoa Bourguignat, 1889
Pinzonela Cowper-Reid, 1943
Pionocomus Cossmann, 1896
Pirainea Lessona & Pollonera, 1882
Pirella Mayer, 1853
Pirenopsis Brot, 1879
Pirestoma Jousseaume, 1882
Pirmula Gregorio, 1895
Pisanana Fagot, 1891
Pisaniana Locard, 1889
Piscalus Férussac, 1829
Piscimaliana Locard, 1890
Piscinaliana Bourguignat, 1881
Pisetrobelus Buelow-Trummer, 1920
Pisina Paetel, 1875
Pistillum Böttger, 1892
Pisum Bourguignat, 1854
Pithocerithium Sacco, 1895
Pithogerithium Cossmann, 1901
Pithohelix Swainson, 1840
Pithys Pease, 1870
Pitonellus Sowerby, 1839
Pitonillus Férussac, 1822
Pitonnellus de Montfort, 1810
Pitonnillus de Montfort, 1810
Pittonnillus d'Orbigny, 1852
Pitys Mörch, 1852
Piunigena Cossmann, 1915
Piveteauoceras Basse, 1947
Placiphorellatypus Bergenhayn, 1930
Placobranchopsis Verrill, 1901
Placocharis Pilsbry, 1900
Plagia Philippi, 1899
Plagiadacna Dollfus, 1905
Plagiamites Buckman, 1925
Plagiodacna Andrussov, 1903
Plagiodacnopsis Andrussov, 1923
Plagiolopsis Thiele, 1934
Plagiorhytis Fischer, 1885
Plagiostomus Herrmannsen, 1847
Plagioteuthis Roemer, 1890
Plagiotheutis Uhlig, 1893
Plagistomus Paetel, 1875
Planatella Clessin, 1876
Planchium Chiaje, 1844
Planctoceras Schroeder, 1891
Plancuna Renier, 1807
Plancunigenus Renier, 1807
Planecapula Shimansky, 1947
Planella Schlüter, 1838
Planicirrus Ryckholt, 1860
Planidiscites Schlüter, 1838
Planifastigites Buckman, 1925
Planimodiola Cossmann, 1887
Planorbifex Pilsbry, 1935
Planorbigenus Renier, 1807
Planorbitina Betta, 1870
Planospirigenus Renier, 1807
Planotheca Meshkova, 1974
Planulites Lamarck, 1801
Planuria Scudder, 1882
Plasmatites Buckman, 1925
Plasmites Dacqué, 1934
Platalias Rafinesque, 1815
Platilites Rafinesque, 1820
Platimya Agassiz, 1838
Platinites Rafinesque, 1819
Platiris Lea, 1838
Platopis Whitfield, 1891
Platopsis Cossmann, 1899
Platteniciana Bourguignat, 1881
Platybasalis Dybowski & Grochmalicki, 1925
Platybostryx Pilsbry, 1896
Platychelyne Tomlin, 1931
Platychilus Koken, 1892
Platychiton Hoare, 2001
Platycircotheca Qian, 1983
Platycloster Hasselt, 1823
Platycolpus Donald, 1900
Platydonax Dall, 1900
Platygyra Mörch, 1860
Platyharpites Buckman, 1927
Platyiris Agassiz, 1846
Platymma Tomlin, 1938
Platymya Agassiz, 1843
Platynaias Walker, 1918
Platynautilus Yabe & Ozaki, 1953
Platyostomella Etheridge, 1880
Platyotala Pfeffer, 1929
Platypetasus Pilsbry, 1894
Platyphysa Fischer, 1883
Platyrhynchoidiana Locard, 1889
Platystomaceras Corroy, 1932
Platystomella Lindström, 1884
Platystomites Westermann, 1954
Platytaphius Pilsbry & Vanatta, 1924
Platytoxon Simroth, 1886
Platytozon Kobelt, 1886
Plaxiphoratypus Bergenhayn, 1930
Plecotremopsis Morgan, 1916
Plectaria Dall, 1924
Plecteulota Möllendorff, 1892
Plecticolimax Tryon, 1884
Plectocyclotus Kobelt & Möllendorff, 1897
Plectolithes Conrad, 1848
Plectophorus Gray, 1821
Plectopilus Clessin, ?, 1892
Plectostoma Adams, 1865
Plectostrigites Buckman, 1924
Plectostylos Oppenheim, 1890
Plectostylus Beck, 1837
Plectrophorus Férussac, 1819
Pledostoma Crosse, 1868
Pleiaceramus Heinz, 1932
Pleiona Paetel, 1875
Pleioptychia Wagner, 1913
Plepticolimax Malm, 1867
Plesechioceras Trueman & Williams, 1925
Plesioniscia Fischer, 1884
Plesiopecten Fischer, 1886
Plesiopotamides Vokes, 1948
Plesiopsis Ancey, 1888
Plesiovascoceras Spath, 1925
Pletholophus Simpson, 1900
Pleuotomaria Billings, 1874
Pleurechioceras Trueman & Williams, 1925
Pleurobranches d'Orbigny, 1841
Pleurobranchillus Bergh, 1892
Pleurobranchopsis Verrill, 1900
Pleurocerus Rafinesque, 1824
Pleurodontites Pilsbry, 1939
Pleuromegalites Buckman, 1924
Pleuronectes Bronn, 1831
Pleuropachydiscus Hyatt, 1900
Pleuropes Paetel, 1875
Pleurophorites Buckman, 1921
Pleuropomatia Tomlin, 1929
Pleurops Férussac, 1822
Pleurorhachis Connolly, 1939
Pleurospira Ehrenberg, 1858
Pleurotachea Pfeffer, 1929
Pleurotomarius Froriep, 1806
Pleurotomigenus Renier, 1807
Pleurotomina Beck, 1847
Pleurotomites Krueger, 1823
Pleurotrema Whitfield, 1892
Pleurotrochus Grabau, 1909
Pleurovalvata Haas, 1939
Pleuroxis Rafinesque, 1848
Pleuroxyites Buckman, 1924
Plicadomus Swainson, 1840
Plicaphora Hartmann, 1844
Plicaria Fabricius, 1823
Plicathyra Torre & Bartsch, 1938
Plicathyrella Torre & Bartsch, 1938
Plicathyrium Jaume & de Fuentes, 1943
Plicatuligenus Renier, 1807
Plicatulopecten Neumann, 1907
Plicigulella Pilsbry, 1919
Plicitheca
Plicoleacina Pilsbry & Vanatta, 1928
Plicolumna Cooper, 1895
Plicomya Stoliczka, 1870
Pliconaias Marshall, 1929
Plicostoma Schlüter, 1838
Plicostomia Sacco, 1892
Pliocathaica Andreae, 1900
Pliocerithium Monterosato, 1910
Pliomeroceras Sobolew, 1914
Pliophloyx Yen, 1944
Plioptychia Böttger, 1877
Pliotropis Möllendorff, 1899
Plistoptychia Lindholm, 1924
Plocarchia Paetel, 1875
Plococeras Hyatt, 1900
Ploearhia Fischer de Waldheim, 1817
Ploiochiton Berry, 1926
Plotogyra Jousseaume, 1884
Plyconites Douvillé, 1887
Pneumatodocha Kölliker, 1847
Poculina Bellardi, 1872
Podagrus Oken, 1815
Podangia Ghosh, 1912
Podopsis Lamarck, 1819
Poecilocharis Kobelt, 1891
Poecilocoptis Pilsbry, 1941
Poecilospira Mörch, 1852
Poecilostola Ancey, 1886
Poecilus Martens, 1860
Poeniella Baker, 1923
Poeyia Bourguignat, 1862
Polia d'Orbigny, 1845
Poliaspoides Nevukk, 1878
Polinskia Wagner, 1920
Poliphonus Rafinesque, 1815
Politana Caziot, 1910
Politioana Jekelius, 1944
Politoleda Hertlein & Strong, 1940
Polliana Gray, 1850
Pollinia de Betta, 1870
Polloneria Sacco, 1886
Polorthus Gabb, 1861
Polycerus Oken, 1829
Polychordia Connolly, 1941
Polycirsus Cossmann, 1888
Polycronites Troost, 1840
Polycyclus Mojsisovics, 1893
Polycylindritidae
Polydonte Fischer, 1817
Polydontiana Caziot, 1910
Polygingigma Paetel, 1875
Polyginglyma Herrmannsen, 1847
Polygonum Blainville, 1826
Polygyrata Weller, 1903
Polygyrus Gray, 1847
Polymegalites Buckman, 1925
Polynema Conrad, 1875
Polyodon Gray, 1840
Polyodonte Fischer, 1807
Polyodontiana Caziot, 1910
Polyphema d'Orbigny, 1846
Polyphemopsis Portlock, 1843
Polyphemus Montfort, 1810
Polyplacophora Blainvillle, 1816
Polyptchus Harris & Hodson, 1922
Polyptychephora Wagner, 1920
Polyptychia Böttger, 1877
Polyptychitidae
Polyptychophora Wagner, 1921
Polyptychus Douvillé, 1904
Polysacos Vendrasco, Wood & Runnegar, 2004
Polysphinctites Buckman, 1922
Polysphinctoceras Spath, 1934
Polystephanus Buckman, 1922
Polystoma Piette, 1891
Polystomiceras Spath, 1924
Polytaenia Martens, 1860
Polytosphinctes Schindewolf, 1925
Polytoxon Simroth, 1897
Polytragus Scudder, 1882
Polytrichia Pallary, 1922
Polytrophis Ulrich & Scofield, 1897
Polytropina Donald, 1905
Polytropis Sandberger, 1875
Pomatia Beck, 1837
Pomatiana Caziot, 1903
Pomatiella Clessin, 1889
Pomonia Monterosato, 1894
Pompholopsis Call, 1888
Pompilius Oken, 1817
Pomularia Scudder, 1882
Ponderosiana Bourguignat, 1881
Ponderosina Locard, 1884
Pondia Oder, 1932
Ponsonbya Ancey, 1890
Pontia Paetel, 1875
Pontica Leach, 1824
Pontolimax Müller, 1848
Popinites Salopek, 1914
Popipinites Kutassy, 1933
Popula Caziot, 1912
Porcelana Blainville, 1826
Porcelanites Desmarest, 1826
Porcellana Jousseaume, 1884
Porcellanella Conrad, 1862
Porcellanites Gesner, 1758
Porcellaria Paetel, 1875
Porcupina Cossmann, 1925
Porcupinia Cossmann, 1900
Porniana Locard, 1889
Pornus Sowerby, 1842
Porochiton Fischer, 1885
Porodragne Reichenbach, 1828
Porodragus Montfort, 1808
Poronia Récluz, 1843
Porphyrides Paetel, 1875
Porphyroides Schröter, 1782
Porphyrostoma Wagner, 1909
Porteroceras Shimizu & Obata, 1935
Portlockia Koninck, 1881
Postclymenia Schmidt, 1924
Postderoceras Schindewolf, 1923
Posteobranchus Gray, 1847
Posteriobranchus Gray, 1842
Posterobranchaea d'Orbigny, 1837
Posterobranchea d'Orbigny, 1845
Posterobranchia d'Orbigny, 1841
Posterobranchus d'Orbigny, 1842
Postprolobites Wedekind, 1913
Potamaclis Sandberger, 1873
Potamactebiana Bourguignat, 1884
Potamanax Pilsbry, 1893
Potamidis Gray, 1847
Potamis Gray, 1833
Potamius Gistl, 1848
Potamolithoides Marshall & Bowles, 1932
Potamophila Sowerby, 1821
Potomaclis Stache, 1880
Potomis Swainson, 1840
Potomophila Swainson, 1840
Powellia Finlay, 1926
Praalimax Hesse, 1926
Praearca Neumayr, 1891
Praecampylaea Pfeffer, 1929
Praecanariella Pfeffer, 1929
Praeclariana Bourguignat, 1884
Praederoceras Dietz, 1923
Praefruticicola Pfeffer, 1929
Praehaploceras Monestier, 1930
Praeheterodonta Cossmann, 1913
Praelapeirouseia Wiontzek, 1934
Praeleioceras Fucini, 1929
Praemorsiana Bourguignat, 1876
Praemurella Pfeffer, 1929
Praenuntius Scudder, 1882
Praeoestophorella Pfeffer, 1929
Praestriaptychus Trauth, 1927
Praesutneria Schmidtill & Krumbeck, 1931
Prantliella Ruzicka, 1950
Praxis Adams, 1857
Preavicula Williams & Breger, 1916
Pregistoma Pfeiffer, 1853
Prehoffmannia Plummer & Scott, 1937
Prelibycoceras Douvillé, 1912
Prepapillites Buckman, 1927
Preperonoceras Maubeuge, 1949
Pressodonta Simpson, 1900
Preteobullia Gregorio, 1882
Previcarya Olsson, 1944
Prieserites Jeannet, 1951
Prilukiella Plotnikov, 1945
Primarietites Buckman, 1926
Primeana Wagner, 1905
Primella Cooper, 1890
Primigulella Pilsbry, 1919
Primipupilla Pilsbry, 1921
Priodelima Wagner, 1924
Priodontura Fischer, 1899
Prionia Agassiz, 1843
Prionilites Link, 1807
Prionoloplax Pilsbry, 1953
Prisconaia Conrad, 1867
Priscovitrea Baker, 1931
Priscovitreops Baker, 1931
Prismatocaulis Simroth, 1913
Pristinoides Baker, 1931
Pristinopsis Baker, 1931
Pristis Lamy, 1918
Privatula Sterki, 1893
Privia Tolmer, 1928
Proamaltheus Lange, 1932
Proameria Baker, 1941
Proaplysia Mazzarelli, 1893
Proarietites Lange, 1924
Proaspastus Clench, 1941
Probaicalia Martinson, 1949
Probraziera Baker, 1941
Procampylaea Gaál, 1910
Procampylea Suklje, 1920
Procarinariidae Wenz, 1938
Procerastus Wenz, 1924
Proceratites Kittl, 1903
Procerpena Gray, 1847
Proceruliana Bourguignat, 1864
Procerulina Westerlund, 1887
Prochilus Martens, 1860
Prochiton Thiele, 1890
Proclio Hubendick, 1951
Procorniculinidae
Procos Gistl, 1847
Procrassatella Yakovlev, 1928
Proctapona Paetel, 1875
Proctostoma Mabille, 1887
Procyclotopsis Wenz, 1924
Prodaraelites Tchernov, 1907
Prodicoelites Stolley, 1927
Prodiplodon Marshall, 1928
Prodotus Paetel, 1875
Prodromoteuthis Pfeffer, 1912
Profissurellidea Wenz, 1938
Profuga Böttger, 1878
Progaleurus
Prognella Rafinesque, 1815
Prohappia Thiele, 1927
Prohyriopsis Haas, 1914
Prolepis Moquin-Tandon, 1855
Prolepsis Mabille, 1870
Prolimax Simroth, 1906
Prolyncina Schilder, 1927
Promargarita Strebel, 1908
Promarinula Wenz, 1922
Promedlicottia Karpinsky, 1889
Promilax Wagner, 1930
Promoussonius Pilsbry, 1906
Pronannites Haug, 1898
Proneritula Thiele, 1929
Propalaeonerica Diener, 1926
Proparmacella Simroth, 1912
Propebloyetia Germain, 1913
Propemelibe Allan, 1832
Properimenia Nierstrasz, 1908
Propescala Cotton & Godfrey, 1931
Prophyllicardium Jekelius, 1944
Propilula Germain, 1918
Proplanaxis Thiele, 1929
Proplecotrema Degrange-Touzin, 1893
Propylidium
Prorasenioides Schindewolf, 1925
Prorsiceras Buckman, 1918
Prorsiphinctes Buckman, 1921
Prosadacna Fischer, 1886
Prosageceras Frech, 1901
Proscaphites Rollier, 1909
Proscenula Perry, 1811
Proselenites Thiele, 1927
Prosigaretus Perner, 1907
Prositala Germain, 1915
Prosodacna Tournouer, 1882
Prosophinctes Schindewolf, 1925
Prosopis Weinland, 1862
Prospiticeras Djanélidzé, 1922
Prostylifer Koken, 1889
Protacrioceras Sarker, 1955
Protamnicola Yen, 1946
Protamusium Verrill, 1897
Protechioceras Spath, 1925
Protelliptio Russell, 1934
Protensia Philippi, 1853
Proteobullia Gregorio, 1882
Proteoceramus Heinz, 1932
Proteredo May, 1929
Proterokaipingoceras Obata, 1940
Proteropiloceras Ruedemann, 1903
Proteusia Hartmann, 1840
Prothelidomus Oppenheim, 1890
Protichnites Owen, 1852
Protissotia Collignon, 1932
Proto Blainville, 1824
Protoamnicola Pana, 2000
Protobeliscus Pilsbry, 1906
Protoboysia Cockerell, 1914
Protocallia Wenz, 1925
Protocerithium Bistram, 1903
Protocymbites Spath, 1923
Protodecapus Naef, 1922
Protodrepanostoma Germain, 1929
Protoecotraustes Spath, 1928
Protomedea Costa, 1861
Protomeroceras Sobolev, 1914
Protomiodon Anderson & Cox, 1948
Protomosira Ammon, 1893
Protopecten Hind, 1910
Protophiceras Hyatt, 1900
Protornatellina Wenz, 1947
Protoschizodon Cossmann, 1912
Protoschizodus Koninck, 1885
Protosepioides Naef, 1922
Prototeathis Couffon, 1918
Prototeuthis Lemoine, 1915
Prototrivia Schilder, 1941
Protounio Martinson, 1953
Protovaginoceras Ruedemann, 1903
Protovalvata Pana, 2000
Protrete Girty, 1908
Provelates Noetling, 1894
Provirgatites Lewinski, 1923
Provitrina Wenz, 1919
Proxenula Férussac, 1820
Prozenula Paetel, 1888
Prozonarina Schilder, 1941
Pruvotaplysia Engel, 1936
Pryamus Sismonda, 1842
Psammophila Brown, 1827
Psammosphaerica Jousseaume, 1894
Psamotella Fischer, 1887
Psedogaudryceras Shimizu, 1935
Psendalinda Kobelt, 1917
Psephides Rafinesque, 1832
Pseudacirsa Kobelt, 1903
Pseudalinda Böttger, 1877
Pseudammonites Rüppell, 1829
Pseudancylastrum Lindholm, 1909
Pseudaperostoma Baker, 1943
Pseudaplysia Pilsbry, 1896
Pseudarinia Yen, 1952
Pseudarion Germain, 1911
Pseudartemon Mabille, 1887
Pseudascoceras Miller, 1932
Pseudaspasita Möllendorff, 1901
Pseudassiminea Thiele, 1927
Pseudasteroceras Spath, 1922
Pseudaxinaea Pallary, 1900
Pseudazeca Pfeiffer, 1877
Pseudedmondia Fischer, 1887
Pseudelix Böttger, 1889
Pseudemarginula Sacco, 1897
Pseudenania Ehrmann, 1927
Pseudeunema Cossmann, 1899
Pseudeupera Germain, 1913
Pseudhelicarion Möllendorff, 1894
Pseudhemisinus Nevill, 1885
Pseudidyla Böttger, 1877
Pseudiscus Morrison, 1942
Pseudoamiantis Kuroda, 1933
Pseudoammonites Bronn, 1836
Pseudobaicalia Dybowski, 1911
Pseudobaikalia Lindholm, 1909
Pseudobalea Shuttleworth, 1854
Pseudobarrettia Müllerried, 1933
Pseudobba Möllendorff, 1891
Pseudobigaleaidae Hoare et al., 2002
Pseudobigotella Lemoine, 1918
Pseudoblanfordia Spath, 1925
Pseudocalaxis Pallary, 1912
Pseudocaldwellia Germain, 1918
Pseudocampylites Jeannet, 1951
Pseudocardita Oppenheim, 1919
Pseudocerastus Germain, 1918
Pseudoceratodes Wenz, 1928
Pseudoceraunocochlis Bandel, 2002
Pseudocerithium Fischer, 1884
Pseudoceros Savile Kent, 1893
Pseudochemnitzia Böttger, 1902
Pseudochileutomia Friedberg, 1938
Pseudochloritis Böttger, 1909
Pseudocingulina Nomura, 1936
Pseudoclavator Germain, 1913
Pseudocolumna Wenz, 1920
Pseudocorbicula Dautzenberg, 1908
Pseudocrommium Clark & Durham, 1946
Pseudocyclophorus Möllendorff, 1890
Pseudocyrtodonta Pfab, 1934
Pseudodactylus Herrmannsen, 1848
Pseudodiceras Gemmellaro, 1875
Pseudodinarites Hyatt, 1900
Pseudodontideus Thiele, 1934
Pseudodontoideus Frierson, 1927
Pseudodrillia Dukooizen, 1924
Pseudoduvalia Naef, 1922
Pseudoeskimoceras Shimizu & Obata, 1936
Pseudoeuchasma
Pseudofigulina Hesse, 1917
Pseudofoordiceras Ruzheutzer & Shimansky, 1954
Pseudofossarus Koken, 1892
Pseudogardenia Tomlin, 1930
Pseudogaudryceras Shimizu, 1935
Pseudogervilleia Gillet, 1922
Pseudoglyciana Locard, 1890
Pseudogonaxis Thiele, 1932
Pseudohauerites Arthaber, 1911
Pseudohelicina Cossmann, 1909
Pseudoholcodiscus Kilian & Reboul, 1909
Pseudohomoceras Librovitch, 1947
Pseudohyalus Baker, 1929
Pseudohydatinana Caziot, 1910
Pseudohyria Morris, 1936
Pseudojerdonia Kobelt, 1902
Pseudokaliella Godwin-Austen, 1910
Pseudoleacina Wenz, 1914
Pseudoleguminaia Germain, 1911
Pseudoleigotella Cossmann, 1919
Pseudoleila Cross & Fischer, 1894
Pseudoleptaxis Tryon & Pilsbry, 1894
Pseudolibania Stefani, 1879
Pseudoligyra Baker, 1954
Pseudolisinoe Wenz, 1923
Pseudomastus Monterosato, 1894
Pseudomata Martens, 1901
Pseudomegalovalvata Kozov, 1936
Pseudometacoceras Miller, Dunbar & Condra, 1933
Pseudomicromelania Suemeghy, 1930
Pseudomonacha Pfeffer, 1929
Pseudomphalus Ancey, 1882
Pseudomuelleria Pilsbry, 1911
Pseudomuites Matsumoto, 1955
Pseudomuseum Clark, 1918
Pseudomutela Simpson, 1900
Pseudoncylastrum Dybowski, 1911
Pseudoncylus Kobelt, 1909
Pseudonematurella Stefani, 1880
Pseudonenia Böttger, 1877
Pseudoon Simpson, 1900
Pseudopachydiscus Yabe & Shimizu, 1926
Pseudopapuina Haas, 1934
Pseudopetraeus Westerlund, 1902
Pseudophasis Germain, 1918
Pseudophysa Yen, 1938
Pseudoplotia Forcart, 1950
Pseudopolita Germain, 1908
Pseudoprosodacna Gillet, 1943
Pseudopunctum Morrison, 1935
Pseudopyrgula Wenz, 1928
Pseudorbulites Breistroffer, 1953
Pseudorhodea Dall, 1895
Pseudoschlotheimia Spath, 1924
Pseudosibirites Arthaber, 1911
Pseudospiraculum Kobelt, 1902
Pseudostenotrema Wenz, 1918
Pseudostrenoceras Spath, 1928
Pseudostreptaxis Möllendorff, 1890
Pseudostreptostyla Nevill, 1881
Pseudostriaptychus Trauth, 1927
Pseudostrobilus Oppenheim, 1892
Pseudotheca Redlich, 1899
Pseudothersitea Savornin, 1914
Pseudotopoma Thiele, 1929
Pseudotoxerotricha Zarate, 1950
Pseudotrochalia Cox, 1954
Pseudoveronicella Germain, 1908
Pseudovivipara Annandale, 1918
Pseudowalkericeras Maubeuge, 1949
Pseudoxerotricha Zárate y López, 1950
Pseudoxychona Pilsbry, 1930
Psichion Gude, 1911
Psiloceros Menke, 1844
Psilocerosa Paetel, 1875
Psilochilus Agassiz, 1846
Psilochylus Agassiz, 1845
Psiloderma Fischer, 1887
Psilodon Cobalescu, 1883
Psiloicus de Morretes, 1952
Psilolobites Renz, 1911
Psilopododerma Agassiz, 1846
Psilunio Stefanescu, 1896
Psorula Haas, 1930
Psyche Rang, 1825
Psychrosoma Tapparone-Canefri, 1876
Pteclopylis Fischer, 1901
Pteradacna Andrussov, 1907
Pteranodon Fischer, 1886
Pteraptychus Trauth, 1927
Ptercyclus Clessin, 1885
Pterinopsis Stuckenberg, 1898
Pteroceanis Meisenheimer, 1902
Pteroceres Montfort, 1810
Pterocerigenus Renier, 1807
Pterocerites Krueger, 1823
Pterocymodocea Bronn, 1862
Pterodiscus Pilsbry, 1893
Pterolyra Lesson, 1831
Pteronautilus Meek & Hayden, 1865
Pteropelagia Bronn, 1862
Pterophorus Piette, 1891
Pterostoma Deshayes, 1861
Pterotoceras Welter, 1915
Pterotrachaea Cuvier, 1817
Pterotrachia Norman, 1888
Pterotropis Pilsbry, 1893
Pterygonepion Pfeffer, 1912
Pterygophysis Fischer, 1883
Pterygothecidae
Ptiloteuthis Gabb, 1869
Ptycharietites Spath, 1925
Ptychicula Tausch, 1886
Ptychina Philippi, 1836
Ptychocentrum Bartsch, 1943
Ptychochloritis Möllendorff, 1902
Ptychoderma Simpson, 1900
Ptychodes Fischer de Waldheim, 1848
Ptychodonta Bartsch, 1906
Ptychomelania Sacco, 1895
Ptychomeliana Pallary, 1916
Ptychoon Pilsbry, 1919
Ptychophaedusa Wenz, 1920
Ptychoplasma Fenton & Fenton, 1937
Ptychopterinia Isberg, 1934
Ptychorhynchoideus Modell, 1931
Ptychorhyncoideus Model, 1935
Ptychorhytida Möllendorff, 1903
Ptychospira Slavík, 1869
Ptychostylis Gabb, 1866
Ptychostylus Möllendorff, 1888
Ptychotropis Stache, 1889
Ptycodia Kobelt, 1904
Puella Barrande, 1881
Pugil Fabricius, 1823
Pugilarca Marwick, 1929
Pugili Paetel, 1875
Pugio Möller, 1832
Pugnellia Oppenheim, 1895
Pukaloa Baker, 1938
Pukenria Laws, 1941
Pulchelliana Caziot, 1910
Pulchelliscala Cossmann, 1922
Pulchellum Morlet, 1888
Pulmobranchia Pelseneer, 1894
Pumilio Scudder, 1882
Punctaconchus
Punctaptychus Trauth, 1927
Punctatiana Caziot, 1908
Puncticingulina Nomura, 1938
Punctisalcata Wagner, 1905
Punctisulcata Wagner, 1905
Punctopatella Grubbs, 1939
Punica Pallary, 1936
Pupella Swainson, 1840
Pupigenus Renier, 1807
Pupigulella Pilsbry, 1919
Pupilia Cossmann, 1917
Pupillea Carpenter, 1861
Pupillia Gray, 1840
Pupinesia Clench, 1949
Pupinoa Clench, 1949
Pupinopsis Adams, 1866
Pupopsis Sturany, 1900
Pupula Kobelt, 1897
Purgisculus Cossmann, 1921
Purperosa Iredale, 1935
Purpurarius Duméril, 1806
Purpurea Deshayes, 1844
Purpuriana Bourguignat, 1889
Purpurites Gesner, 1758
Puschia Rouillier & Vossynsky, 1847
Pusiela Pallary, 1912
Pusillana Fagot, 1891
Pusiodon Swainson, 1840
Pustulosa Thiele, 1934
Puteolus Monterosato, 1888
Putriana Caziot, 1910
Pycinodesma Kirk, 1927
Pycnodesma Kirk, 1927
Pygmaea Mörch, 1860
Pygotheca Milne-Edwards, 1883
Pymoeana Fagot, 1891
Pyramea Link, 1807
Pyramia Dana, 1849
Pyramidaliana Bourguignat, 1884
Pyramidalis
Pyramidatana Fagot, 1891
Pyramidatiana Caziot, 1910
Pyramidelligenus Renier, 1807
Pyramidoscala Cossmann, 1922
Pyraze Gray, 1840
Pyrella Swainson, 1835
Pyrenaica Böttger, 1877
Pyrenaicana Fagot, 1891
Pyrenella Gray, 1857
Pyrenoeariana Fagot, 1891
Pyrenomorus Hall, 1852
Pyrgelix Beck, 1837
Pyrgidium Tournouer, 1869
Pyrgisculus Monterosato, 1884
Pyrgobullinus Pallary, 1923
Pyrgolamprus Kobelt, 1913
Pyrgomitra Mörch, 1869
Pyrgophysa Crosse, 1879
Pyrgostelus Monterosato, 1884
Pyrgostelys Sacco, 1892
Pyrgostylus Monterosato, 1884
Pyrgozyga Knight, 1930
Pyrguletta Cossmann, 1919
Pyrgulifera Meek, 1871
Pyrgus Albers, 1850
Pyrhostylus Cossmann, 1921
Pyrificus Conrad, 1868
Pyrum Fabricius, 1823
Pyrus Webster, 1814
Pysetomya Ulrich, 1893
Pythiopsis Sandberger, 1872
Pythohelix Swainson, 1840
Pytis Schmeltz, 1879
Pytohelix Mörch, 1852
Pyxes Paetel, 1875
Pyxis Stefani, 1877
Quadratula Herrmannsen, 1848
Quadridentiana Caziot, 1910
Qualigibba Iredale, 1941
Quasilucina Stewart, 1930
Quechua Strebel, 1910
Quenstediceras Buckman, 1922
Quinquelithes Sysoev, 1957
Quitmanites Scott, 1939
Rabdoconcha Gemmellaro, 1878
Rachisellus Bourguignat, 1889
Radina Preston, 1915
Radioconcha Conrad, 1869
Radiocrista Dall, 1902
Radiodomus Baker, 1930
Radiolithigenus Renier, 1807
Radula Gray, 1842
Raetolucina Osswald, 1930
Raffraya Bourguignat, 1883
Ragsdaleorbis Webb, 1954
Raiatea Baker, 1938
Raiblia Cossmann, 1915
Raitilites Marek, 1989
Raleta Gray, 1842
Ralia Gray, 1842
Ramola Gray, 1858
Ramoliva Cotton & Godfrey, 1932
Ramosaclesia Iredale, 1929
Ramusculus Lindholm, 1925
Randabelia Bourguignat, 1888
Ranfurla Kobelt, 1904
Rangianana Caziot, 1912
Rangianella Conrad, 1868
Rapanus Sowerby, 1839
Raphanister Montfort, 1808
Raphanistes Bronn, 1838
Raphidiella Maltzan, 1886
Raptomphalus Godwin-Austen, 1914
Rapulum Paetel, 1888
Rara Wagner, 1897
Rarissimetus
Rasama Laidlaw, 1932
Raspailites Jeannet, 1951
Ravana Godwin-Austen, 1901
Ravenia Crosse, 1873
Ravidana Fagot, 1883
Rayana Locard, 1890
Rayiana Germain, 1904
Raynevallia Ponzi, 1872
Rebmanniella Preston, 1911
Reclasta Dall, 1920
Recticuliscala Boury, 1909
Rectiviviparus Pilsbry & Bequaert, 1927
Rectobelus Baker, 1927
Rectogloma Van Tuyl & Berckhemer, 1914
Redium Chiaje, 1844
Reesideoceras Basse, 1947
Refluharpa Iredale, 1931
Regestoma Hasselt, 1823
Reghostoma Troschel, 1856
Registana Hall, 1867
Registoma Hasselt, 1824
Regularisiana Locard, 1890
Reineckeceras Gillet, 1924
Reinhardtia Böttger, 1878
Remeleceras Hyatt, 1894
Remeleoceras Hyatt, 1900
Renauxia Repelin, 1906
Renitheca
Rennellia Clench, 1941
Renulina Blainville, 1825
Repenoconus Feng, Qian & Rong, 1994
Replidacna Jekelius, 1944
Repressaxis Baker, 1939
Requieniana Locard, 1889
Requienites Matheron, 1843
Resupinata Martens, 1897
Retenticeras Buckman, 1920
Reticulata Frierson, 1927
Reticulatus Frierson, 1927
Retorquata Wagner, 1905
Revilla Gardner, 1945
Revoilia Bourguignat, 1881
Reynaudia Brandt, 1835
Reynesiana Fagot, 1892
Reynevallia Ponzi, 1875
Rhabdochila Fischer, 1883
Rhabdocycloceras Zhuravleva, 1994
Rhabdodites Buckman, 1923
Rhabdogulella Haas, 1934
Rhabdokonia Wagner, 1905
Rhabdospira Perner, 1903
Rhabdotacra Kobelt & Möllendorff, 1898
Rhabdotakra Wagner, 1897
Rhabotakra Caziot, 1910
Rhachidina Thiele, 1911
Rhachidoceramus Heinz, 1932
Rhachisellus Bourguignat, 1889
Rhacopea Ulrich & Bridge, 1930
Rhadinoceramus Heinz, 1932
Rhaetites Hyatt, 1900
Rhamphistoma Giebel, 1852
Rhamphopoma Haas, 1955
Rhaphanister Montfort, 1808
Rhaphidiella Maltzan, 1886
Rhaphiellus Pfeiffer, 1855
Rhapischisma Knight, 1936
Rhegistoma Martens, 1867
Rhegostoma Agassiz, 1846
Rheinhardtia Tryon, 1884
Rhenea Hutton, 1893
Rhetites Cossmann, 1900
Rhexiostoma Paetel, 1875
Rhexistoma Herrmannsen, 1848
Rhincolites Deshayes, 1832
Rhinedomus Swainson, 1840
Rhinocantha Adams, 1853
Rhinoceros Herrmannsen, 1852
Rhinoclabis Kobelt, 1910
Rhinodomus Swainson, 1840
Rhinomelania Martens, 1901
Rhinostrombus Cossmann, 1901
Rhinotamides Olsson, 1944
Rhipaeocanites Ruzhentzev, 1949
Rhiphaeites Ruzencev, 1933
Rhipidocardium Fischer, 1887
Rhipidodonta Mörch, 1853
Rhipsauchenia Naegele & Böttger, 1890
Rhizophorimurex Oyama, 1950
Rhizophorus Gray, 1850
Rhodigina Bergh, 1877
Rhodocephala Walker, 1917
Rhododerma Hesse, 1918
Rhodonyx Fischer, 1873
Rhodostoma Swainson, 1840
Rhombichiton Koninck, 1883
Rhombites Herrmannsen, 1848
Rhombocardia Meek & Worthen, 1866
Rhombocheilus Shimansky, 1947
Rhombochiton Lindström, 1884
Rhomboideana Fagot, 1892
Rhomboides Blainville, 1824
Rhomboidiana Locard, 1889
Rhombomya Sacco, 1901
Rhombunio Germain, 1911
Rhopalobelus Pavlov, 1913
Rhopalocaulis Simroth, 1913
Rhopalogonium Degner, 1932
Rhymbocochlias Möllendorff, 1895
Rhynchidia Laube, 1868
Rhyncholythus Geinitz, 1846
Rhynchomya Agassiz, 1843
Rhynchoteuthion Pfeffer, 1908
Rhynchotheutis Collignon, 1929
Rhynocantha Bellardi, 1873
Rhysotina Ancey, 1887
Rhyticeras Savage, 1921
Rhytidchasma Kobelt, 1916
Rhytidochasma Sturany & Wagner, 1915
Rhytidonaia Haas, 1936
Rhytidoplites Scott, 1939
Rhytidorhaphe Möllendorff, 1897
Rhytiphorus Meek, 1871
Rhytoides Zekeli, 1854
Rhytophorus Meek, 1877
Rhytostephanus Buckman, 1921
Ribeiriidae Kobayashi, 1933
Richeiceras Jeannet, 1951
Ridleya Ancey, 1901
Riebeckia Martens, 1883
Rigasia Adams, 1858
Rikuzenites Yabe, 1949
Rillya Fischer, 1883
Rillyia Cossmann, 1889
Rima Pallary, 1910
Rimulus d'Orbigny, 1839
Rinetrigonia Hoepen, 1929
Ringicella Gray, 1847
Ringiculadda Iredale, 1936
Ringula Gray, 1841
Rinodomus Paetel, 1873
Riparia Herrmannsen, 1852
Riplexia Cossmann, 1925
Rissoaria Blainville & Desmarest, 1827
Rissoinella Oyama, 1954
Rivicola Fitzinger, 1833
Rivularioides Annandale, 1919
Robicia Brusina, 1897
Robinsonia Nevill, 1870
Robusta Böttger, 1877
Robustidae Stinchcomb & Darrough, 1995
Robustites Philippi, 1901
Rochanaia de Morretes, 1941
Rochebrunia Bourguignat, 1882
Rochebrunnia Bourguignat, 1881
Rodentilites Marek, Malinky & Geyer, 1997
Rogeria Teppner, 1922
Rognacia Oppenheim, 1895
Roissya Schaufuss, 1869
Rolphiana Fagot, 1891
Romania Cossmann, 1912
Romanovichella Komarov, 2003
Rombergia Dall, 1900
Ropalita Rafinesque, 1815
Roseana Fagot, 1892
Rosenbuschia Röder, 1882
Rosenia Schepman, 1914
Rosselidena Iredale, 1941
Rossiensiceras Gérard & Contaut, 1936
Rossiitidae
Rossmassleriana Bourguignat, 1881
Rostellariigenus Renier, 1807
Rostellites Conrad, 1855
Rostrata Wagner, 1905
Rostratiana Bourguignat, 1881
Rostrimacoma Salisbury, 1934
Rostroconus Jiang Zhiwen, 1980
Rostrotema Sykes, 1903
Rostrotrema Lycett, 1848
Rotaclea Gray, 1821
Rotalinites Shimizu, 1935
Rotellorbis Cossmann, 1888
Rothpletzia Rothpletz & Simonelli, 1891
Rotula Albers, 1850
Rotundatiana Caziot, 1910
Rotundatusiana Germain, 1903
Rotungia Godwin-Austen, 1918
Roualtia Tryon, 1883
Rouaultia Bellardi, 1878
Roubideuxia Butts, 1926
Rousseaua Rochebrune, 1892
Rousseauia Maillieux, 1920
Rowellia Carpenter, 1864
Roxana Paetel, 1875
Rubeta Scudder, 1882
Rubeyella Yen, 1951
Rubiginosana Fagot, 1892
Rubrileiites Buckman, 1926
Rudens Heude, 1890
Rudiscala Boury, 1909
Ruellaria Fischer, 1886
Rufiana Caziot, 1910
Rufina Clessin, 1878
Rufispira Paetel, 1889
Rufospira Möllendorff, 1883
Ruganodontites Marshall, 1931
Rugaptychus Trauth, 1927
Rugatula Herrmannsen, 1848
Rugicyclotus Morrison, 1955
Rugifera Simpson, 1900
Rugosiana Caziot, 1908
Rugosiuscula Caziot, 1910
Rugosiusculana Fagot, 1891
Rugosula Herrmannsen, 1848
Rumanicana Locard, 1890
Rumella Bourguignat, 1885
Runnegarella Parkhaev, 2002
Runnegarochiton Yu, 1987
Rupacilla Thiele, 1927
Rupellarigenus Renier, 1807
Rupertia Gray, 1865
Rupestriana Caziot, 1910
Rupicella Paetel, 1875
Rupicillo Martens, 1869
Rutotia Koninck, 1885
Ryckholtia Fritsch, 1910
Ryrana Paetel, 1875
Rytia Stefanescu, 1896
Sabaeola Lindholm, 1925
Sabbaia Cossmann, 1897
Sabinaea Adams, 1854
Sabinea Sowerby, 1842
Sabljaria Brusina, 1904
Saccoia Brusina, 1893
Saccoletitia Iredale, 1941
Saccus Mörch, 1852
Saconites Rafinesque, 1819
Saepiola Quenstedt, 1849
Saeronia Dall, 1920
Saffordella Dunbar, 1920
Sagdellina Cossmann, 1889
Sagdinella Mörch, 1872
Sagia Yen, 1952
Sagittaceras Cossmann, 1921
Sagitticeras Buckman, 1920
Sagittitheca Yue, 1984
Sagittoceras Hind, 1918
Sagmaplaxus Oehlert, 1881
Saicavigenus Renier, 1807
Saintsimonia Bourguignat, 1880
Saintsimoniana Locard, 1889
Saissetia Ancey, 1888
Salacia Jukes-Browne, 1914
Salasiella Strebel, 1878
Salassiella Dall & Bartsch, 1909
Salebrolabis Iredale, 1939
Salmacoma Iredale, 1929
Salpingophorus Kobelt & Möllendorff, 1897
Salweyia Reed, 1931
Samarites Lyashenko, 1972
Sandella Gray, 1857
Sandriana Locard, 1889
Sanellina Conrad, 1865
Sanguinolarigenus Renier, 1807
Sannalyria Pilsbry & Olsson, 1954
Sannionites Fischer, 1829
Sansania Bourguignat, 1877
Santacharis Iredale, 1927
Santandericeras Royo y Gomez, 1945
Sarama Godwin-Austen, 1908
Saramina Wenz, 1947
Sarcoptera Menke, 1830
Sarcopterus Rafinesque, 1814
Sardoa Wagner, 1897
Sargaella Aksarina, 1978
Sarka Barrande, 1881
Sarlatia Douvillé, 1910
Sarmata Dybowski & Grochmalicki, 1920
Sarmatina Korobkov, 1955
Sarmatocylichna Korobkov, 1955
Saronus Rafinesque, 1815
Sataria Annandale, 1920
Saturnoceras Anderson, 1938
Saulcyana Bourguignat, 1884
Saxitoniceas McLearn, 1927
Saxitoniceras McLearn, 1927
Sayunio Gregorio, 1914
Scaea Philippi, 1844
Scaeofax Iredale, 1931
Scaeopupina Iredale, 1941
Scalariana Bourguignat, 1884
Scalarigenus Renier, 1807
Scalarina Wagner, 1897
Scalarinella Clessin, 1889
Scalatella Martens, 1860
Scalaturris Brebion, 1954
Scaldiana Dybowski, 1902
Scalenaria Rafinesque, 1820
Scalenilla Ortmann & Walker, 1922
Scalez Hanna & Gaylord, 1924
Scaliconus Spriestersbach, 1938
Scalimelania Wenz, 1939
Scalinella Pease, 1868
Scamboscamna Liu, 1987
Scamnoceras Lange, 1924
Scansicochlea Haas, 1932
Scansicohlea Pilsbry, 1930
Scapha Hedström, 1923
Scaphanidia Rolle, 1862
Scaphopoda Bronn, 1862
Scatenaria Rafinesque, 1820
Scenellopsis Resser, 1938
Schafthautlia Cossmann, 1897
Scharka Barrande, 1881
Schaufhaeutlia Cipolla, 1932
Schismotrema Herrmannsen, 1846
Schistopinax Bartsch, 1918
Schizoceramus Heinz, 1932
Schizochitontypus Bergenhayn, 1930
Schizocleithrum Haas, 1913
Schizocyclus Schindewolf, 1951
Schizodesma Sowerby, 1839
Schizopecten Kobayashi, 1936
Schizophyllites Renz, 1948
Schizopyge Cossmann, 1901
Schizopyle Pilsbry, 1939
Schizosdesma Sowerby, 1839
Schlotheimites Berger, 1982
Schlueteria Rollier, 1922
Schluetericeras Collignon, 1938
Scholvienia Strebel, 1910
Schrammia Guppy, 1895
Schroederilda Bandel, 1995
Schroeteria Tryon, 1862
Schubertia Gistl, 1848
Schuchertites Smith, 1903
Schumacheria Cossmann, 1902
Schwartzia Bucquoy, Dautzenberg & Dollfus, 1884
Sciaphila Westerlund, 1902
Scilistylus Iredale, 1941
Scissotheca Yue, 1984
Sclerotites Geinitz, 1845
Scobinapoma Torre & Bartsch, 1938
Scolianodon Martens, 1900
Scolioceramus Heinz, 1932
Scolissedium Verany, 1846
Scolymus Deshayes, 1843
Scopelophila Albers, 1850
Scopulosa Böttger, 1878
Scopulospica Pilsbry, 1941
Scorbiculinus Pallary, 1902
Scrobiculina Dall, 1900
Scrupeana Locard, 1890
Sculptassiminea Thiele, 1927
Sculpticerastus Germain, 1920
Sculptunio Lindholm, 1932
Scutellites Montfort, 1810
Scutifera Blainville, 1818
Scutigeratus Paetel, 1875
Scutigerulus Herrmannsen, 1852
Scutularia Mansuy, 1914
Scyphus Monterosato, 1908
Sdikia Gregorio, 1884
Secusana Gredler, 1894
Segaretus
Segmentaria Swainson, 1840
Segmentella Thiele, 1925
Seguentia Fucini, 1931
Seignettiana Bourguignat, 1884
Seisia Kutassy, 1934
Sektionitidae
Selaniella Ancey, 1886
Selasiella Tryon, 1885
Selenoceramus Heinz, 1932
Selenomphala Aldrich, 1898
Selenophaedusa Lindholm, 1924
Selleia Dollfus, 1912
Sellia Raincourt, 1884
Semiauricula Cossmann, 1889
Semibuliminus Möllendorff, 1899
Semicardium Paetel, 1875
Semicircularea Lochman & Duncan, 1944
Semiclausaria Pfeiffer, 1856
Semicorbis Paetel, 1875
Semicornu Mörch, 1852
Semicorum Pilsbry, 1890
Semifruticiola Kobelt, 1916
Semilituus Herrmannsen, 1848
Seminolina Pilsbry, 1934
Semiporcellana Herrmannsen, 1852
Semirugata Böttger, 1877
Senckenbergia Yen, 1939
Senectidens Iredale, 1931
Seniculus Maynard, 1896
Sensiella Paetel, 1888
Sephinia Rafinesque, 1815
Sepialites Naef, 1922
Sepidium Levy, 1912
Sepiolithes d'Orbigny, 1845
Sepion Sacco, 1904
Sepiostaria Bronn, 1838
Sepiostera Deshayes, 1833
Sepites Bronn, 1848
Septameroceras Hyatt, 1884
Septemspiraliana Caziot, 1910
Septemspiralis Wagner, 1897
Septiola Bittner, 1895
Septocyrtoceras Ulrich, Foerste, Miller & Unklesbay, 1944
Seraps Férussac, 1821
Serbendulus Pfeiffer, 1879
Serbica Böttger, 1877
Serenia Benson, 1856
Sericea Wagner, 1907
Sericeana Caziot, 1910
Sericipupa Cooke & Pilsbry, 1920
Sericohaminoea Habe, 1952
Serina Gredler, 1898
Serinus Preston, 1912
Serma Cossmann, 1909
Serostena Iredale, 1941
Serpaea Bourguignat, 1889
Serpentulus Adams, 1855
Serpuloides Gray, 1850
Serpulopsis Kittl, 1912
Serra Lesson, 1832
Serratisphoerium Germain, 1909
Serrostoma Scudder, 1882
Sertodaria Oken, 1817
Servainiana Bourguignat, 1884
Servitor Barrande, 1881
Sesteriana Bourguignat, 1884
Setaepoma Clench, 1955
Setidiscus Baker, 1927
Setogibba Iredale, 1941
Seunesiceras Breistroffer, 1953
Severinium Chiaje, 1844
Shabaktiella
Shansinautilus Yabe & Mabuti, 1935
Shantungoceras Shimizu & Obata, 1935
Shastites Hyatt & Smith, 1905
Sheppardiconcha Marshall & Bowles, 1932
Sherbornites Buckman, 1923
Shichiheia Hatai & Nisiyama, 1949
Shimanskia Komarov, 1998
Shotoverites Buckman, 1925
Shuttleworthia Baker, 1941
Sibiropyrgula Lindholm, 1932
Sicania Tomlin, 1929
Sidetes Giebel, 1847
Sidula Gray, 1840
Sieversia Kobelt, 1880
Sigaretarius Duméril, 1806
Sigaretigenus Renier, 1807
Sigeretus Swainson, 1835
Sigmorthoceras Kobayashi, 1934
Signepupina Iredale, 1937
Silesiacrochordiceras Diener, 1916
Silex Quoy & Gaimard, 1835
Silia Mayer, 1876
Siliquarca Tromelin & Lebesconte, 1875
Siliquarigenus Renier, 1807
Silurocardium Leymerie, 1881
Silvigulella Pilsbry, 1919
Simia Leach, 1847
Similothecidae Malinky, 1988
Simochilus Harris & Burrows, 1891
Simonia Bourguignat, 1880
Simoniceras Maubeuge, 1998
Simonisiana Locard, 1889
Simplegade Reichenbach, 1828
Simplegades Montfort, 1808
Simplegadus Bronn, 1836
Simplegas Blainville, 1824
Simplicaria Suter, 1891
Simplicervix Pilsbry, 1903
Simpliciana Caziot, 1910
Simplicodolium Sacco, 1891
Simplicoglabella Sacco, 1890
Simplidactylites Buckman, 1927
Simplum Stoliczka, 1867
Simpulinus Mörch, 1860
Simpulum Mörch, 1852
Simrothia Clessin, 1884
Sinaenigma Pilsbry, 1934
Sinalbinula Pilsbry, 1916
Sinemuria Christol, 1841
Singleya Baker, 1941
Sinica Möllendorff, 1885
Sinicola Gude, 1899
Sinicolo Gude, 1902
Sinigena Lindholm, 1925
Sinistroseila Oliver, 1915
Sinochilus Cossmann, 1896
Sinomelania Yen, 1936
Sintoina Paetel, 1875
Sintoxia Rafinesque, 1820
Sinugera Paetel, 1875
Sinugigera Jousseaume, 1882
Sinula Scudder, 1882
Sinusigera d'Orbigny, 1841
Sioliella Haas, 1949
Siphalomphix Rafinesque, 1833
Siphlostoma Stache, 1880
Sipho Mörch, 1852
Siphodon Rafinesque, 1815
Siphon Gray, 1847
Siphonella Issel, 1869
Siphonellona Wenz, 1941
Siphonocyclotus Dautzenberg & Fischer, 1906
Siphonocyclus Möllendorff, 1900
Siphonolaemus Pilsbry, 1903
Siphonophaedusa Lindholm, 1924
Siphonostoma Guilding, 1840
Siphonostyla Kobelt, 1897
Siphonostylus Kobelt, 1897
Siphunculus Herrmannsen, 1848
Sira Schmidt, 1855
Siragimelania Suzuki, 1940
Siraphorus Lindholm, 1925
Siretia Pallary, 1926
Sistenope Dall, 1918
Sitalinopsis Thiele, 1931
Siticula
Slapylites Marek, 1980
Smaragdista Iredale, 1936
Smendovia Tournouer, 1882
Smithites Lemoine, 1915
Smodingoceramus Heinz, 1932
Socardiana Locard, 1889
Socenia Jekelius, 1944
Sokolovitheca Sysoev, 1972
Sol Fischer, 1885
Solandangella Horny, 1995
Solanderina Dall, 1902
Solariellopsis Schepman, 1908
Solarigenus Renier, 1807
Solarites Krueger, 1823
Solemella Bandel, 2002
Solenarca Herrmannsen, 1848
Solenaria Stoliczka, 1870
Solenarius Duméril, 1806
Solenella Sowerby, 1833
Solenigenus Renier, 1807
Solenitas Gmelin, 1793
Solenites Gesner, 1758
Solennites Schlotheim, 1813
Solenocurtis Swainson, 1840
Solenocurtus Coppi, 1882
Solenomphala Martens, 1883
Solenostoma Spriestersbach, 1918
Solenotheca Malinky, 1990
Solex Clessin, 1892
Solgeria Uhlig, 1905
Solia Senes, 1955
Solidana Fagot, 1891
Soligo Clessin, 1888
Solimanites Toula, 1896
Solmodora Iredale, 1941
Solmopina Iredale, 1941
Solmotella Iredale, 1941
Solutapex Torre & Bartsch, 1941
Solvadusta Iredale, 1935
Somertus Férussac, 1822
Sometus Pilsbry, 1895
Songlingella
Sonninites Buckman, 1923
Sonoranax Pilsbry, 1939
Sonorina Pilsbry, 1896
Sophismalepas Iredale, 1924
Sormetus Blainville, 1824
Soror Barrande, 1881
Sosiella Cossmann, 1895
Sosiospira Knight, 1937
Spadana Fagot, 1884
Spallanzanium Chiaje, 1844
Spaniodonta Kobelt & Möllendorff, 1902
Sparellina Fischer, 1883
Sparnotion Pilsbry, 1944
Spartina Harris & Burrows, 1891
Spathia Schindewolf, 1925
Spathinella Shimizu, 1935
Spathiocaris Clarke, 1884
Spathophora Jeffreys, 1882
Spatiolabia Iredale, 1941
Spatophora Weinkauff, 1882
Spatulites Buckman, 1928
Speciosiana Bourguignat, 1884
Spengleriana Bourguignat, 1881
Speo Risso, 1826
Sperchinusiana Locard, 1889
Sphaerassiminea Habe, 1942
Sphaeriastrum Bourguignat, 1854
Sphaeroceramus Heinz, 1932
Sphaerogryphus Ewald, 1844
Sphaeroidea Wagner, 1905
Sphaeromorphides Cossmann, 1922
Sphaeromorphites Buckman, 1921
Sphaeronautilus Spath, 1927
Sphaerostoma Macgillivray, 1843
Sphaerozonites Pfeffer, 1929
Sphaerula Agassiz, 1846
Sphalerostoma Girard, 1892
Sphenalia Wood, 1874
Sphenaturia Ihering, 1921
Sphenoceras Foord, 1903
Sphenomya Hall, 1883
Sphenonaias Crosse & Fischer, 1894
Spherula Gray, 1821
Sphinctoceras Neaverson, 1925
Sphinctostrema Girard, 1894
Sphinosphaera Knight, 1945
Sphoeridiana Bourguignat, 1880
Spinaptychus Trauth, 1927
Spinicoeloceras Buckman, 1926
Spiniformis Germain, 1903
Spinikosmoceras Buckman, 1924
Spinulitheca
Spio Agassiz, 1846
Spira Brown, 1844
Spiratropis Kobelt & Möllendorff, 1900
Spiridionia Cossmann, 1909
Spirilliscala de Boury, 1915
Spirillus Schlüter, 1838
Spirites Herrmannsen, 1852
Spirobula Fulton, 1922
Spirobulla Ancey, 1881
Spirocaulis Simroth, 1913
Spiroconulus Martens, 1892
Spirocoptis Pilsbry, 1902
Spirodesmos André, 1920
Spirodiscus Stein, 1850
Spirodomus Beecher, 1886
Spironites Rafinesque, 1815
Spiropleroceras de Saez, 1931
Spiropoma Kobelt & Möllendorff, 1900
Spiroraphella Grabau, 1936
Spirorbis Swainson, 1840
Spiroscutalus Pilsbry, 1932
Spirostraca Brandt, 1829
Spirotoxon Simroth, 1897
Spirulisepia Naef, 1922
Spitisculites Diener, 1916
Spixoconcha Pilsbry, 1893
Splendidana Caziot, 1910
Spoedylolithus Paetel, 1875
Spolium Scudder, 1882
Spondaeana Locard, 1890
Spondeana Germain, 1904
Sponditolites Reichenbach, 1828
Spondyligenus Renier, 1807
Spondylites Herrmannsen, 1849
Spondyloites Herrmannsen, 1849
Spondylolithus Herrmannsen, 1849
Spongiodoris Pruvot-Fol, 1933
Sponsa Barrande, 1881
Sporodiscus Clessin, 1877
Sprattia Böttger, 1883
Sprickia Modell, 1942
Spriestersbachia Maillieux, 1930
Sqamamussium Oyama, 1944
Staffordia Godwin-Austen, 1907
Stainieria Maillieux, 1930
Staja Brusina, 1897
Stalactella Bartsch, 1906
Stalagmina Denckmann, 1887
Stalioa Brusina, 1870
Stalioia Fischer, 1885
Staliola Eastman, 1900
Stalion Martens, 1875
Staliopsis Rzehak, 1893
Stalivia Plateau, 1898
Stangicola Paetel, 1875
Stantonites Hyatt & Smith, 1905
Stantonogyra Yen, 1946
Stappersella Maillieux, 1920
Staumatella Buvignier, 1843
Stauntonites Diener, 1915
Steatocoptis Pilsbry, 1941
Steatonenia Pilsbry, 1926
Stegalomphalus Monterosato, 1917
Steganomphalus Harris & Burrows, 1891
Stegeostephanus Buckman, 1922
Stegomphix Rafinesque, 1833
Stegostephanus Dacqué, 1934
Steinbergia
Steira Eschscholtz, 1825
Steirotuba Sacco, 1895
Stelechites Herrmannsen, 1849
Stella Fischer, 1885
Stelterella Malinky, 2002
Stemmodiscus Dall, 1920
Stempelleria Clasing, 1918
Stempellia Odhner, 1921
Stenabralia Grimpe, 1931
Stenechioceras Buckman, 1927
Stenelasma Herrmannsen, 1849
Stenhoplites Spath, 1922
Steniola Rafinesque, 1815
Stenoceramus Heinz, 1932
Stenoceras d'Orbigny, 1849
Stenodacna Andrussov, 1923
Stenodon Rafinesque, 1818
Stenodoris Pease, 1866
Stenogyropsis Möllendorff, 1899
Stenomphalia Lindholm, 1927
Stenomphalus Sandberger, 1861
Stenoradsia Dall, 1879
Stenorhachiodon Lindholm, 1927
Stenosepia Vincent, 1901
Stenostoma Lamarck, 1817
Stenostrema Deshayes, 1832
Stenothecella Aksarina, 1978
Stenotoma Rafinesque, 1818
Stenotropis Möllendorff, 1897
Stephanopus Scacchi, 1833
Stephylla Rafinesque, 1814
Stephyllia Paetel, 1875
Stercopoma Caziot, 1910
Stereoplasmocerina Kobayashi, 1936
Stereoplax Thiele, 1893
Stereopoma Wagner, 1897
Stereozaptyx Pilsbry, 1905
Stereulima Kobelt, 1903
Sterna Albers, 1850
Sterope Hartman, 1881
Steueroceras Cossmann, 1899
Steuroceras Weaver, 1931
Stigmatica Böttger, 1877
Stiliola Dunker, 1875
Stilpnodiscus Möllendorff, 1899
Stimpsonia Clessin, 1878
Stimpsoniella Carpenter, 1873
Stimulitheca Duan, 1984
Stiparana Caziot, 1910
Stiphromorphites Buckman, 1923
Stiphrostoma Oppenheim, 1892
Stira Agassiz, 1846
Stobilus Adams, 1855
Stodomonta Jousseaume, 1882
Stoicoceras Whitehouse, 1927
Stola Herrmannsen, 1849
Stolidoma Deshayes, 1863
Stolidomia Dalton, 1878
Stolidomopsis Sandberger, 1875
Stoliodoma Wenz, 1920
Stoliodomopsis Wenz, 1920
Stoliva Wenz, 1926
Stolleyiceramus Heinz, 1932
Stomacosmethis Bollinger, 1918
Stomadon Pictet & Campiche, 1863
Stomatiigenus Renier, 1807
Stomatius Herrmannsen, 1852
Stomatodon Benson, 1862
Stomatomega Cossmann, 1921
Stomatopsella Stache, 1889
Stomatopsidea Cossmann, 1909
Stomatopsoidea Stache, 1889
Stomatoptycha Scudder, 1882
Stomax Montfort, 1810
Stomega Dall & Bartsch, 1904
Stomphosphinctes Buckman, 1921
Stopelophila Paetel, 1873
Storthoceras Lange, 1941
Straba Prantl & Ruzicka, 1954
Strabelus Herrmannsen, 1852
Strabiella Prantl & Ruzicka, 1954
Strabina Prantl & Ruzicka, 1954
Strangalostoma Scudder, 1882
Strangulata Westerlund, 1884
Strategus Cooper, 1863
Strebelia Crosse & Fischer, 1868
Strebloboydia Waterhouse, 2001
Strebloceramus Heinz, 1932
Strebloramphus Tate & Cossmann, 1898
Streblorhamphus Cossmann, 1915
Stremmatopsis Mabille, 1887
Streptodera Lindholm, 1925
Streptosiphon Gill, 1867
Streptostylella Pilsbry, 1907
Strialuna Pilsbry, 1926
Strianematina Chronic, 1951
Striaptychus Trauth, 1927
Striata Frierson, 1927
Striatiana Fagot, 1891
Striatinella Clessin, 1876
Striatoceras Shimizu & Obata, 1935
Striatoclymenia Matern, 1931
Striatostyliolinidae
Striatouniconus Dorodnova, 1993
Striaturops Baker, 1928
Strigilaria Rafinesque, 1815
Strigiliaria Kennard & Woodward, 1923
Strigillaria Vest, 1867
Strigillina Dunker, 1861
Strigites Buckman, 1924
Strigosulla Herrmannsen, 1849
Strigula Perry, 1811
Striokaliella Thiele, 1931
Striolatiana Caziot, 1908
Striomitrella Grant & Gale, 1931
Striopupilla Pilsbry, 1921
Striosubulina Thiele, 1933
Strobelia Clessin, 1889
Strobila Hutton, 1884
Strombella Gray, 1857
Strombigenus Renier, 1807
Strombilus Gray, 1847
Strombolituites Remelé, 1881
Strombosa Gistl, 1848
Strophella Dawson, 1895
Strophina Mörch, 1852
Strophostomella Fischer, 1883
Stroptosiphon Cossmann, 1901
Struthiola Whitelegge, 1889
Stumpiella Soot-Ryen, 1955
Stuorilda Bandel, 1995
Sturmiana Locard, 1890
Styganodon Martens, 1900
Stylina Fleming, 1828
Styliolinidae
Stylocyrtoceras Ulrich, Foerste, Miller & Unklesbay, 1944
Styloides Fitzinger, 1833
Styloptychus Lindholm, 1925
Stylotrochus Seguenza, 1876
Styx Oppenheim, 1895
Subamalia Pollonera, 1887
Subannularia Torre & Bartsch, 1941
Subbrahmaites Yabe & Shimizu, 1924
Subcultellus Ghosh, 1920
Subcuthona Baba, 1949
Subcylindricana Caziot, 1910
Subflemingites Spath, 1934
Subgarantiana Bentz, 1928
Subglobulosa Wagner, 1905
Sublacuna Cossmann, 1899
Sublaevigata Wagner, 1905
Subliosarmata Dybowski & Grochmalicki, 1920
Subneritina Herrmannsen, 1852
Suborbiculus Simpson, 1900
Subparkinsonia Mascke, 1906
Subphyllochorda Götzinger & Becker, 1932
Subpolyconites Milovanovic, 1934
Subpronorites Tchernov, 1907
Subschloenbachia Spath, 1921
Substenorhytis Fenaux, 1938
Substriaptychus Nagao, 1931
Substricta Böttger, 1877
Subtagelus Ghosh, 1920
Subtentus Frierson, 1927
Subterenochitontypus Bergenhayn, 1930
Subulata Martens, 1901
Subulona Martens, 1895
Succincta Wagner, 1905
Succinia Gray, 1840
Succuridacna Korobkov, 1954
Suchumica Seninski, 1905
Suessionia Cossmann, 1889
Sulcastrum Sterki, 1930
Sulcatapex Yen, 1946
Sulcatula Leroy, 1940
Sulcavitidae Syssoiev, 1958
Sulciconus Bielz, 1869
Sulcifer Lindholm, 1909
Sulcocarina
Sulcochiton Ryckholt, 1862
Sulcolarinula Wenz, 1923
Sulcomarinula Sacco, 1897
Sullivania Palmer, 1947
Suloceras Manda, 2001
Sumortoniceras Shimizu, 1935
Sundavitrina Rensch, 1932
Surculofusus Vincent, 1895
Surcusofusus Cossmann, 1897
Surinamia Clench, 1933
Susania Gray, 1857
Susaria Bronn, 1863
Suspensites Buckman, 1922
Sutherlandiceras Buckman, 1922
Svanetia Hesse, 1926
Svilajites Kittl, 1903
Swiftella Baker, 1941
Sychnotropis Möllendorff, 1898
Sycofulgur Marks, 1950
Sykesia Gude, 1897
Sylvicola Hübner, 1810
Symboloceramus Heinz, 1932
Symboloceratites Schrammen, 1928
Sympanotomus Olsson, 1944
Symplegades Berthold, 1827
Symplegas Agassiz, 1846
Sympterus Rafinesque, 1815
Symptychia Ehrmann, 1927
Sympulum Rochebrune, 1882
Synaptherpes Kobelt, 1908
Synaptychus Fischer, 1882
Syndesmyella Sacco, 1901
Syngenoceramus Heinz, 1932
Syniella Kanev, 1980
Synjaella Kanev, 1993
Synopleura Meek, 1871
Syntonia Schaufuss, 1869
Syntoxia Agassiz, 1846
Sypho Brown, 1827
Syphonia Kobelt, 1902
Sypnolopsis Clessin, 1882
Syringites Herrmannsen, 1849
Syrmatophora Sowerby, 1842
Syrnolina Dall & Bartsch, 1904
Sysoievia Marek, Malinky & Geyer, 1997
Systellomphalus Pilsbry & Olsson, 1941
Systenochiton Hoare, 2001
Systenope Cossmann, 1889
Szuchumiella Wagner, 1945
Tachaea Leach, 1847
Tachychlamys Paetel, 1889
Tachyphasis Germain, 1918
Tactoceramus Heinz, 1932
Tadunia Godwin-Austen, 1918
Taeniata Wagner, 1909
Taenioceramus Heinz, 1932
Taeniola Dall, 1904
Tahuatoa Baker, 1938
Tahudrillia Powell, 1942
Taihua Annandale, 1924
Tainuia Marshall, 1926
Taiwanosiphona Habe, 1943
Tajinella Marek, Malinky & Geyer, 1997
Tajlugania Papin, 1966
Tallepus Paetel, 1875
Tallopia Mörch, 1852
Tamarindiformis Herrmannsen, 1849
Tamayops Baker, 1928
Tammouzia Pallary, 1939
Tamsiana Wagner, 1907
Tanausia Dybowski, 1912
Tanganikea Martens, 1891
Tania Gray, 1842
Tanychlamys Benson, 1834
Tapsia Grandidier, 1887
Tardarpoceras Buckman, 1927
Targionia Hesse, 1923
Tarsia Gregorio, 1892
Tassadus Desmarest, 1859
Tatutor Jousseaume, 1887
Taula Paetel, 1890
Taurangia Laws, 1937
Tauremarginula Sacco, 1897
Tauricardium Eberzin, 1947
Tauromenia Fucini, 1931
Tavaniothia Iredale, 1936
Taxeodonta Pilsbry, 1898
Tchangsichiton Yu, 1987
Tcharatheca Sysoev, 1972
Tchuranitheca Meshkova, 1974
Technophoridae Miller, 1889
Tectula Lowe, 1852
Tegragonoceras van Hoepen, 1955
Tegumen Gude, 1913
Teilhardoceras Grabau, 1929
Teinotus Schepman, 1908
Teisseyreomya Bolgiu, 1954
Telebois Montfort, 1808
Telebris Paetel, 1875
Telederma Paetel, 1875
Teleostoma Harris & Burrows, 1891
Teleozonites Pilsbry, 1919
Telephora Hoffmannsegg, 1818
Telescopella Gray, 1847
Telescopioidea Sacco, 1895
Teliostoma Cossmann, 1893
Tella Palmer, 1942
Tellerites Mojsisovics, 1902
Tellinarius Froriep, 1806
Tellinigenus Renier, 1807
Tellinites Gesner, 1758
Tellinomya Hall, 1847
Tellinula Mörch, 1853
Tellinungula Roemer, 1873
Telloda Hertlein & Strong, 1951
Telochiton Ashby & Cotton, 1939
Telonensiana Caziot, 1910
Telonentiana Caziot, 1910
Telum Herrmannsen, 1849
Temniscala de Boury, 1887
Temnotaia Annandale, 1919
Tenacipes Baker, 1931
Tenare Gray, 1858
Teneritia Mabille, 1898
Tennentia Humbert, 1862
Tenpetasus Iredale, 1929
Tentaculatiana Fagot, 1891
Tentaculitidae
Tenuidactylites Buckman, 1926
Tenuis Wagner, 1910
Tephrites Paetel, 1875
Tephritis Herrmannsen, 1849
Tepidatys Iredale, 1936
Tepomusa Iredale, 1941
Terasceras van Hoepen, 1944
Teratichnus Miller, 1830
Terebelligenus Renier, 1807
Terebracites Krueger, 1823
Terebrarius Duméril, 1806
Terebrella Andreae, 1887
Terebrigenus Renier, 1807
Terebrina Bartsch, 1923
Terebronilla Eames, 1951
Teredarius Duméril, 1806
Teredigenus Renier, 1807
Teredolites Leymerie, 1841
Teredolithes Herrmannsen, 1852
Teredolithus Bartsch, 1930
Teres Bucquoy, Dautzenberg & Dollfus, 1883
Teretropoma Rochebrune, 1882
Terrestriana Fagot, 1886
Terveria Kennard & Woodward, 1923
Terveriana Caziot, 1910
Testacelligenus Renier, 1807
Testacina Binney, 1879
Testicina Rafinesque, 1815
Tetagmenoceras van Hoepen, 1946
Tethyoceramus Heinz, 1932
Tetragostea Paetel, 1875
Tetrameres Barrande, 1867
Tetramorion Barrande, 1867
Tetranema Cossmann, 1912
Tetranemia Mörch, 1859
Tetraspis Hagenmüller, 1885
Tetrastomella Sacco, 1890
Tetrathecidae Sysoyev, 1968
Tetrodontina Ancey, 1887
Texania Palmer, 1937
Texasia Reeside, 1932
Texites Smith, 1932
Thaanumia Ancey, 1899
Thakombaua Pilsbry, 1909
Thalamule Reichenbach, 1828
Thalamus Montfort, 1808
Thalapa Paetel, 1875
Thalassides Berger, 1833
Thalassites Quenstedt, 1843
Thalassus Oken, 1815
Thalesoceras Manda, 2001
Thalessa Adams, 1853
Thalestris Lindholm, 1913
Thalia Bruguière, 1791
Thalicera Gray, 1847
Thallepus Swainson, 1840
Thallocera Herrmannsen, 1849
Thallopus Paetel, 1875
Thalopia Paetel, 1888
Thapsiella Fischer, 1885
Thaumasia Albers, 1850
Thaumatogulella Haas, 1951
Thecaphorus Adams, 1854
Thecathera Gray, 1840
Theceurybia Bronn, 1862
Thecothera Agassiz, 1846
Theganeceras Whitehouse, 1926
Theliconus Swainson, 1840
Thelidonta Swainson, 1840
Theliostoma Sowerby, 1824
Theloconus Herrmannsen, 1849
Thelodonta Herrmannsen, 1849
Thelycus Agassiz, 1846
Theoris Rafinesque, 1815
Theringia Cossmann, 1899
Thermalisiana Caziot, 1903
Thermhydrobia Paulucci, 1878
Thermoconus Little, Maslennikov, Morris & Gubanov, 1999
Theveninia Roman, 1921
Thianassa Olsson, 1944
Thiarella Swainson, 1840
Thiatisa Gray, 1847
Thicolea Gray, 1847
Thicolia Leach, 1847
Thielea Tesch, 1913
Thilea Strebel, 1908
Thilia Strebel, 1908
Thimna Bergh, 1905
Thiphobia Clessin, 1882
Thisoa Herrmannsen, 1849
Thoanoa Gray, 1851
Thoena Rafinesque, 1815
Tholachatina Bequaert, 1950
Thomeonanina Germain, 1909
Thompsonia Pilsbry, 1888
Thomsenia Strebel, 1910
Thomsonia Ancey, 1886
Thoracoceramus Heinz, 1932
Throculus Picaglia, 1892
Thuleoceras Troeddson, 1926
Thyas Gray, 1857
Thylacodes Agassiz, 1846
Thylacodus Marschall, 1873
Thyreus Philippi, 1844
Thysanoceras Hyatt, 1867
Thysanotoceras Whitehouse, 1927
Tiaraconcha Frech, 1891
Tiarapirenella Sacco, 1895
Tiariconcha Beushausen, 1895
Tiaropsis Brot, 1870
Tibecriola Cossmann, 1900
Tiberiella Coen, 1933
Tiberiola Cossmann, 1900
Tibiochilus Eames, 1951
Tibiris Kobelt, 1911
Tiedemannia Van Beneden, 1839
Tifata Adams, 1855
Tigrias Rafinesque, 1815
Tigris Troschel, 1861
Tileria Deshayes, 1857
Timasenus Iredale, 1941
Timorella Bergh, 1905
Timorenia Swainson, 1840
Timoriena Quoy & Gaimard, 1824
Timorienna Griffith & Pidgeon, 1834
Timoriensis Rang, 1829
Timorodidymites Diener, 1916
Timorotropites Diener, 1916
Tingitana Pallary, 1918
Tinneyea Cossmann, 1909
Tinnyea Hantken, 1887
Tinotora Cossmann, 1915
Tintintheca Li Yong & Ding, 1996
Tiranites Montfort, 1808
Tirannites Link, 1830
Tirolica Böttger, 1877
Tirolitoides Spath, 1934
Tirolthilda Bandel, 1995
Tisoa de Serres, 1840
Titanopoma Wagner, 1897
Titanotus Troschel, 1857
Tithyonia Tiberi, 1880
Titthodomus Pfeffer, 1929
Tiverites Berger, 1989
Tizilites Marek, Malinky & Geyer, 1997
Tliboconus Péron, 1829
Tmetocephalites Cossmann, 1924
Tmetokephalites Buckman, 1923
Tofanella Bandel, 1995
Tofangocerina Kobayashi, 1936
Toledronia Kobelt, 1902
Tolmaia Williams, 1908
Tolteniana Perkins, 1871
Tomala Gray, 1842
Tomiger Leach, 1815
Tomigerella Pfeiffer, 1879
Tomigeres Leach, 1815
Tomocera Desmarest, 1858
Tomoceras White & St. John, 1868
Tomocheilus Gemmellaro, 1878
Tomochilus Fischer, 1884
Tomogaenus Desmarest, 1859
Tomogera d'Orbiguy, 1852
Tomogeres Montfort, 1810
Tomogerina Jousseaume, 1877
Tomogerus Blainville, 1824
Tomopeas Pilsbry, 1906
Tongacystis Baker, 1938
Toniciatypus Bergenhayn, 1930
Tonnites Herrmannsen, 1849
Topaeum d'Orbigny, 1842
Topidophora Kobelt, 1904
Toralimysia Iredale, 1936
Toricelliceras Buckman, 1922
Tornatellinoides Pfeiffer, 1877
Tornatelloides Pfeiffer, 1877
Tornquistes Lemoine, 1910
Torobaena Haas, 1935
Torotaia Haas, 1939
Toroteuthis Tomlin, 1931
Torquatella Held, 1837
Torquisiphon Iredale, 1940
Torrechrysias Bonilla, 1936
Torrellisca Henderson & Bartsch, 1920
Torreviana Aguayo, 1943
Tortacella White, 1895
Torticella Rafinesque, 1833
Tortigulella Pilsbry, 1919
Tortilla Perner, 1903
Tortucerithium Olsson, 1944
Tortula Westerlund, 1878
Torulosa Frierson, 1927
Tosaphaedusa Ehrmann, 1929
Tottenia Perkins, 1871
Tourameria Paetel, 1875
Tournatella Swainson, 1840
Tournoneria Simroth, 1907
Toxerites Rafinesque, 1818
Toxeumorphoridae
Toxodactylites Buckman, 1926
Toxolimax Simroth, 1899
Toxonema Böhm, 1895
Toxosma Whitaker, 1875
Toxosoma Conrad, 1874
Toxosphinctes Buckman, 1923
Toxostoma Rafinesque, 1831
Toxotrema Rafinesque, 1819
Tozzettia Hesse, 1924
Trachomatichnus Miller, 1880
Trachybaicalia Martens, 1876
Trachybaikalia Nevill, 1884
Trachycaspia Dybowski & Grochmalicki, 1917
Trachyceramus Heinz, 1932
Trachychloritis Haas, 1934
Trachyglandina Pfeffer, 1929
Trachyodon Dall, 1892
Trachyoma Tryon, 1887
Trachyomya Cossmann, 1906
Trachyphyllites Arthaber, 1927
Trachyschoenium Cossmann, 1889
Trachytachea Pfeffer, 1929
Tradeustoma Iredale, 1941
Tragomma Held, 1837
Tragorhacoceras Spath, 1927
Traliopsis Sandberger, 1872
Trameharpa Iredale, 1931
Traneceras Hyatt, 1903
Transiberus Monterosato, 1893
Transilvanella Atanasiu, 1929
Transitrigonia Dietrich, 1932
Transsennella Kobelt, 1903
Transsilvanica Westerlund, 1890
Transylvanites Palfy, 1902
Trapezopericyclus Turner, 1948
Traumatophora Ancey, 1887
Trechmannella Cox, 1933
Trechmannia Longstaff, 1912
Trelania Gray, 1868
Tremagyrus Perner, 1903
Trematofusus Whitfield, 1892
Tremesia Rafinesque, 1820
Tremessa Rafinesque, 1820
Tremurus Rafinesque, 1815
Trenellidae Parkhaev, 2001
Trepidana Fagot, 1883
Trepidula Caziot, 1910
Trepidulana Caziot, 1910
Tretraspis Heynemann, 1906
Tricassiniana Locard, 1890
Trichelix Ancey, 1887
Trichiobaikalia Lindholm, 1909
Trichiopsis Böttger, 1909
Trichobensonia Möllendorff, 1902
Trichocathaica Gude, 1919
Trichocyclus Eschscholtz, 1825
Trichomecus Rafinesque, 1815
Trichophora Deshayes, 1830
Trichopodus Swainson, 1840
Trichroa Wagner, 1905
Trickella Nevill, 1878
Tricla Philipsson, 1788
Tricoliella Monterosato, 1884
Tricoloceras Whitehouse, 1928
Tridachna Lamarck, 1799
Tridachnus Paetel, 1875
Tridacnigenus Renier, 1807
Tridacnodites Krueger, 1823
Tridacnoides Krueger, 1823
Tridentistrophia Maynard, 1896
Triduchiobaicalia Dybowski, 1911
Trifaux Baker, 1935
Trigomyophoria Kobayashi, 1954
Trigonellites Parkinson, 1811
Trigonigenus Renier, 1807
Trigonima Rafinesque, 1819
Trigonocaelia Gray, 1840
Trigonocaelix Conrad, 1865
Trigonocardia Zittel, 1881
Trigonocelia Sowerby, 1846
Trigonocelius Paetel, 1875
Trigonocoelius Bronn, 1838
Trigonodon Conrad, 1865
Trigonopythia Kobelt, 1898
Trigonosphaerium Kobelt, 1913
Trihelix Ancey, 1898
Trimerella Billings, 1862
Trimorion Barrande, 1867
Trinacrioceras Fucini, 1931
Trinisphinctes Buckman, 1922
Triodonta Koenen, 1893
Triola Retzius, 1800
Triomphala Clessin, 1892
Tripachatina Bourguignat, 1889
Tripaloia Bourguignat, 1880
Triphyllites Jullien, 1911
Tripter Rang, 1829
Triptera Quoy & Gaimard, 1825
Tripteres Gray, 1840
Tripteris Menke, 1830
Triptichia Clessin, 1879
Triptycha Müller, 1859
Triptychia Sandberger, 1875
Triptyxis Pcelinzev, 1924
Triquetra Conrad, 1846
Triquetrana Simpson, 1900
Triremis Fischer, 1884
Tristania Böttger, 1878
Tristoma Deshayes, 1832
Tristramia Crosse, 1862
Trito Lesson, 1842
Tritonella Adams, 1852
Tritonifusus White, 1887
Tritonis Hall, 1867
Tritonium Röding, 1798
Triumphalia Schaufuss, 1869
Trivea Swainson, 1840
Trizonius Busch, 1851
Trocatella Collinge, 1891
Trochaliopsis Cox, 1954
Trochatella Lesson, 1831
Trochella Gray, 1868
Trochiarius Duméril, 1806
Trochifusus Gabb, 1877
Trochigenus Renier, 1807
Trochilaea Sowerby, 1839
Trochilea Swainson, 1835
Trochiletes Schlotheim, 1820
Trochilina Gray, 1868
Trochilites Schlotheim, 1813
Trochilla Swainson, 1840
Trochiscus Held, 1837
Trochitella Herrmannsen, 1849
Trochitellus Herrmannsen, 1849
Trochites Gesner, 1758
Trochius Leach, 1847
Trochlea Haldeman, 1842
Trochocirrus Ryckholt, 1870
Trochoclea Angas, 1867
Trochocochela Cossmann, 1918
Trochoconulus Reinhardt, 1883
Trochoconus Bruguière, 1792
Trocholeptopoma Möllendorff & Kobelt, 1897
Trochomorphoides Nevill, 1878
Trochonanita Baker, 1938
Trochorbis Benson, 1855
Trochoscala Koken, 1897
Trochosolarium Seguenza, 1903
Trochoturbinites Herrmannsen, 1849
Trochula Schlüter, 1838
Trococochlea Bell, 1898
Trocophore Paetel, 1875
Trocotaulax Olsson, 1944
Trompeta Herrmannsen, 1849
Trophidiscus Adams, 1854
Trophodon Rafinesque, 1831
Trophodor Rafinesque, 1818
Trophomorphoides Clessin, 1882
Trophonites Buckman, 1922
Trophonium Berthold, 1827
Tropidebora Pilsbry, 1944
Tropidina Mörch, 1864
Tropidocardium Roemer, 1868
Tropidocochlis Locard, 1899
Tropidocochtis Locard, 1899
Tropidocyclas Dall, 1903
Tropidogyra Wenz, 1923
Tropidolytopelte Simroth, 1901
Tropidomphalus Pilsbry, 1895
Tropidothais Cox, 1925
Tropiphora Waagen, 1907
Tropodiscus Clessin, 1877
Trubatsa Dall, 1889
Trucacteocina Habe, 1954
Truella Pease, 1871
Trukrhysa Baker, 1941
Truncatula Leach, 1847
Truncillopsis Ortmann & Walker, 1922
Trunctoconus
Trychtychia Clessin, 1887
Trycophore Paetel, 1875
Trygonella Bronn, 1824
Trypetes Tomlin, 1929
Tryptychia Kobelt, 1910
Ttigonella Rochebrune, 1881
Tubellites Buckman, 1924
Tuberculina Gregorio, 1882
Tuberculodolium Sacco, 1891
Tuberculopleura Jakowlew, 1899
Tuberia Carpenter, 1857
Tuberoconus
Tuberunio Lindholm, 1932
Tubicanthus Swainson, 1840
Tubifer Piette, 1856
Tubolana Bivona-Bernardi, 1832
Tubulana Bivona-Bernardi, 1832
Tudorata Baker, 1924
Tudorellata Henderson & Bartsch, 1920
Tudorina Torre & Bartsch, 1941
Tudorisca Henderson & Bartsch, 1920
Tudorops Henderson & Bartsch, 1920
Tulaxoda Blainville, 1828
Tulaxodes Herrmannsen, 1849
Tulaxodus Guettard, 1770
Tulbaghina Gude, 1921
Tulbaghinia Melvill & Ponsonby, 1898
Tulenicornus
Tuliparia Swainson, 1840
Tullia Pruvot-Fol, 1933
Tulophorites Buckman, 1921
Tulosites Rafinesque, 1831
Tulotomoides Wenz, 1939
Tulotomops Wenz, 1939
Tumidiana Silva & Castro, 1884
Tumidusiana Locard, 1889
Tumulduria Missarzhevskii, 1969
Tunetana Wagner, 1897
Tungkuanoceras Hayasaki, 1947
Turbacmella Thiele, 1925
Turbina Herrmannsen, 1847
Turbinata Wagner, 1905
Turbinellarius Duméril, 1806
Turbinelligenus Renier, 1807
Turbinia Dollfus, 1919
Turbinigenus Renier, 1807
Turbinulus Hermannsen, 1849
Turbofusula Rovereto, 1900
Turbonus Rafinesque, 1815
Turbulima Schlüter, 1838
Turcomilax Simroth, 1901
Turcuthecidae
Turispira Pethö, 1906
Turitellus Montfort, 1810
Turmalitidae
Turpura Stewart, 1880
Turribaicalia Dybowski & Grochmalicki, 1917
Turricola Issel, 1885
Turriculata Wagner, 1897
Turrilimnaea Dybowski, 1908
Turripoma Torre & Bartsch, 1938
Turritellites Bronn, 1835
Turritellus Montfort, 1810
Turrites Haan, 1825
Turrithyretes Torre & Bartsch, 1938
Turritodostomia Sacco, 1892
Turritostomia Suter, 1913
Turtoniana Locard, 1889
Tutchericeras Buckman, 1919
Tutuella Raghozin, 1938
Tutuilana Hubendick, 1952
Tuyangites Chao, 1950
Tychocardia Roemer, 1868
Tychogonia Berge, 1847
Tyleria Adams, 1854
Tylophorites Cossmann, 1922
Tylopoma Brusina, 1882
Tylotechus Möllendorff, 1901
Tylotoechus Kobelt & Möllendorff, 1897
Tyrannozaptyx Käufel, 1930
Tyrrelloceras Foerste, 1925
Tyrsaecus Kittl, 1892
Tysoa de Serres, 1840
Uanuka Baker, 1938
Ullostoma Paetel, 1875
Ulostoma Albers, 1850
Ulpia Scott, 1955
Ultiscrobs Iredale, 1955
Umbella d'Orbigny, 1841
Umber Paetel, 1875
Umbilicatiana Fagot, 1891
Umbilicatusiana Germain, 1903
Umbilicites Herrmannsen, 1849
Umbonellus Herrmannsen, 1849
Umbonis Maynard, 1896
Umiaites Spath, 1930
Undacyclitidae
Undastriatostyliolinidae
Ungeroceras Sturgeon & Miller, 1948
Ungulinigenus Renier, 1807
Unico Reider & Hahn, 1831
Uniconidae
Uniconocyclitidae
Uniconomorphitidae
Unicornu Fabricius, 1823
Unidens Schinz, 1822
Unifasciatana Fagot, 1891
Unifasciatiana Caziot, 1910
Uniformitheca
Uniigenus Renier, 1807
Unino Fabricius, 1823
Uniona Pohlig, 1880
Unionea Rafinesque, 1815
Unionella Haas, 1913
Unionetta Haas, 1955
Unionidium Gray, 1851
Unioniformiana Locard, 1890
Unionium Link, 1807
Unionopsis Meek, 1876
Unionum Dall, 1898
Uniopsis Swainson, 1840
Uniplicaria Pfeiffer, 1856
Unis Hutton, 1883
Upsilidon Haas, 1932
Upsilodon Pilsbry, 1930
Uralites Tchernov, 1907
Urcea Scudder, 1882
Urcinella Rafinesque, 1815
Urichia Guppy, 1895
Urocoptola Clench, 1935
Uromya Rollier, 1913
Urosica Vincent, 1930
Urosyca Gabb, 1868
Ussuriceras Spath, 1930
Ustularia Hall, 1867
Utschamiella Raghozin, 1938
Utterbackiana Frierson, 1927
Vagavarix Baker, 1941
Vagina Megerle, 1811
Vaginina Simroth, 1897
Vaginopsis Colosi, 1922
Vaginulopsis Thiele, 1931
Valamidiscus Szabo, 2002
Valeda Conrad, 1875
Valenciennensis Rousseau, 1842
Valenclennesia Gorjanovic-Kramberger, 1901
Valensiennesia Andrusov, 1897
Valgum Scudder, 1882
Valiguna Grimpe & Hoffmann, 1925
Vallandroella Bandel, 1995
Vallicaulis Odhner, 1919
Vallisnerium Chiaje, 1844
Valvarius Paetel, 1875
Valvatella Cossmann, 1891
Valvatina Bornemann, 1855
Valvatinella de Betta, 1870
Valvatomphalus Dybowski & Grochmalicki, 1925
Valvearius Duméril, 1806
Vancleaveia Baker, 1930
Vanderschaliea Modell, 1943
Vanesia Adams, 1861
Vanigula Grimpe & Hoffmann, 1925
Vanvleetia Waterhouse, 2001
Varania Simroth, 1904
Variabilis Wagner, 1905
Varicaria Fabricius, 1823
Varicellaria Pilsbry, 1907
Varicellidea Pilsbry, 1907
Varicellina Pilsbry, 1907
Varicellopsis Pilsbry, 1907
Varicellula Pilsbry, 1907
Varicifer Piette, 1876
Varicigera Douvillé, 1916
Varicoglandina Pilsbry, 1908
Varigera d'Orbigny, 1850
Varistrigites Buckman, 1924
Varostium Iredale, 1938
Vastites Arkell, 1951
Vasula Mörch, 1860
Vasulites Herrmannsen, 1849
Vaticinaria Dall, 1901
Vaucheria Pallary, 1904
Vaumegalites Buckman, 1924
Vayssierena Pruvot, 1928
Vebmiculus Mörch, 1860
Vediantius Risso, 1826
Vega Westerlund, 1883
Velainia Munier-Chalmas, 1884
Velania Munier-Chalmas, 1884
Veldidenella Alma, 1925
Veleda Conrad, 1870
Velopecten Philippi, 1899
Veloplacenta Hubendick, 1952
Velum Agassiz, 1846
Velunio Haas, 1914
Vendryesia Simpson, 1895
Vendrysia Pilsbry, 1903
Venericardigenus Renier, 1807
Venericardites Krueger, 1823
Venericardium Beyrich, 1837
Venerigenus Renier, 1807
Venerites Menke, 1818
Ventania Parodiz, 1940
Ventricosana Fagot, 1891
Ventricosiana Caziot, 1908
Ventricosina Locard, 1884
Ventriculus Wenz, 1914
Venulites Schlotheim, 1813
Venulithes Nilsson, 1827
Venusites de Verneuil, 1848
Verecunda Wagner, 1909
Verena Adams, 1854
Veristoa Iredale, 1937
Vermetellus Haas, 1951
Vermicularigenus Renier, 1807
Vermiculatiana Caziot, 1908
Vermiculus Mörch, 1860
Vermidactylites Buckman, 1926
Vermilla Gregorio, 1885
Vermitoma Kuroda, 1928
Verrillopsyche Cossmann, 1900
Verrilopsyche Cossmann, 1918
Versipella Iredale, 1931
Versutaxis Baker, 1939
Verticillus Moquin-Tandon, 1848
Vertigopsis Sterki, 1892
Vertillaria Pilsbry, 1919
Vertumniceras Buckman, 1918
Veruturris Powell, 1944
Vestiarius Rafinesque, 1815
Vetericardia Conrad, 1872
Vetulonaia Branson, 1935
Vibex Oken, 1815
Vicariihelix Pilsbry, 1919
Vicina Pilsbry, 1924
Victoriceras Buckman, 1918
Vidantius Paetel, 1875
Vielliersia Monterosato, 1884
Vietuliana Locard, 1890
Vilia Dall & Bartsch, 1904
Vilitas Pilsbry, 1926
Villanana Fagot, 1892
Villanya Till, 1909
Villarita Dunker, 1846
Villeserriana Bourguignat, 1884
Villiersia Locard, 1886
Villiersiellia Bucquoy, Dautzenberg & Dollfus, 1898
Villoeana Locard, 1889
Vinceleusiana Locard, 1889
Vincelotiana Germain, 1904
Vindex Powell, 1927
Vineta Dohm, 1925
Violenga Iredale, 1941
Viquesnelia Deshayes, 1857
Viquesnella Schaufuss, 1869
Viquesnilia Paetel, 1889
Virgatosphinctoides Neaverson, 1925
Virgatotheca Meshkova, 1974
Virgula Simpson, 1900
Virianowakia Alberti, 1980
Viriatellidae
Viridisiana Caziot, 1910
Vis Griffith & Pidgeon, 1834
Vitreana Fagot, 1892
Vitrella Swainson, 1840
Vitreohaminoea Kuroda & Hake, 1952
Vitrinoidea Semper, 1873
Vitrinoides Simroth, 1891
Vitulina Swainson, 1840
Vjalovites Lyashenko, 1969
Vobstericeras Trueman & Williams, 1925
Vola Mörch, 1853
Volgiolum Herrmannsen, 1849
Voloulina Stoliczka, 1906
Volulithes Swainson, 1840
Volusia Adams, 1861
Voluticella Palmer, 1953
Volutigenus Renier, 1807
Volutiles Paetel, 1875
Volutilithopsis Pethö, 1896
Volutites Gesner, 1758
Volutithes Swainson, 1835
Volutocristata Gardner & Bowles, 1934
Volutopupa Dall, 1890
Volutovetus Pilsbry & Olsson, 1954
Volvarigenus Renier, 1807
Volvulina Stoliczka, 1866
Volvulus Oken, 1815
Volynitidae
Vomanus Iredale, 1915
Vortex Beck, 1837
Vorticiaca Caziot, 1910
Vorticiana Fagot, 1891
Vorticoceras Scott, 1939
Vorticosusiana Germain, 1903
Vrazia Brusina, 1897
Vulgarisiana Germain, 1903
Vulgatocerithium Schlosser, 1925
Vulgocerithium Sacco, 1895
Vulgusella Jousseaume, 1884
Vulnus Sykes, 1904
Vulpecula Blainville, 1824
Vulpicella Cossmann, 1889
Vulselligenus Renier, 1807
Vulsellopsis Douvillé, 1907
Wagneria Gistl, 1848
Waimea Pilsbry & Cooke, 1916
Wakauraia Kuroda & Habe, 1954
Wakayella Kruse, 1998
Walkeria Buckman, 1902
Walkericeras Buckman, 1913
Walkerilla Thiele, 1928
Wanga Chen, 1943
Wanwanoidea Kobayashi, 1933
Webbia Odhner, 1931
Wedekindia Schindewolf, 1925
Wedekindoceras Schindewolf, 1924
Weinlandella Baker, 1954
Welschia Buckman, 1899
Wenzia Pfeffer, 1929
Wenzipupa Strand, 1928
Westerina Pruvot-Fol, 1934
Westerlundella Lindholm, 1924
Westerlundia Kobelt, 1904
Westerlundiana Bourguignat, 1881
Westernia Quoy & Gaimard, 1825
Westeruia Rang, 1829
Wetmorepoma Bartsch, 1946
Widningia Ludbrook, 1941
Wiegmannia Hesse, 1916
Wilkinsonaea Chitty, 1857
Wilkinsonea Carus, 1868-75
Wilkinsonia Simroth, 1907
Willettia Gordon, 1939
Wilmattina Pilsbry & Cockerell, 1933
Wilsonia Hudleston, 1896
Wiltshireia Buckman, 1904
Wingeastonia Schepman, 1907
Winslowceras Miller & Downs, 1948
Wissermeliceras Buckman, 1920
Witshireia Buckman, 1899
Wodwardia Monterosato, 1884
Wolfartaria Gray, 1840
Wolfataria Gray, 1840
Wollemanniceras Breistroffer, 1947
Wolskia Dybowski & Grochmalicki, 1917
Woodringia Stenzel, 1939
Woodwardia Crosse & Fischer, 1861
Wrayana Clench, 1948
Wrightia Gemmellaro, 1886
Wrightudora Torre & Bartsch, 1941
Wrigthia Gemmellaro, 1887
Wuchangella Wang, 1993
Wuestia Honigmann, 1909
Wyattia Taylor, 1966
Wyvillethomsonia Crosse, 1885
Xalonicana Caziot, 1910
Xanthodaphna Powell, 1942
Xanthonella Gray, 1850
Xeinodactylites Buckman, 1926
Xeinophylloceras Buckman, 1921
Xenoceramus Heinz, 1932
Xenohelix Mansfield, 1927
Xerambigua Monterosato, 1893
Xeroacuta Monterosato, 1893
Xeroalbina Monterosato, 1893
Xeroampulla Monterosato, 1893
Xerobulla Monterosato, 1893
Xerocathaica Andreae, 1900
Xerocauta Monterosato, 1893
Xerocerastus Möllendorff, 1902
Xeroclivia Monterosato, 1893
Xerocochlea Monterosato, 1893
Xerocodia Monterosato, 1893
Xerocystis Watson, 1934
Xerofalsa Monterosato, 1893
Xerofriga Monterosato, 1893
Xerofusa Kobelt, 1904
Xerofusca Monterosato, 1893
Xerogyra Monterosato, 1893
Xerolaeta Monterosato, 1893
Xerolauta Monterosato, 1893
Xerolaxa Monterosato, 1893
Xerolena Monterosato, 1893
Xerolincta Monterosato, 1893
Xerolissa Monterosato, 1892
Xeroloeta Monterosato, 1894
Xerolutea Monterosato, 1893
Xeromicra Monterosato, 1893
Xeromoesta Monterosato, 1893
Xeronexa Monterosato, 1893
Xeroplana Monterosato, 1893
Xeroplexa Monterosato, 1893
Xeropthychia Lamy, 1911
Xeroptycha Monterosato, 1893
Xeroptychia Westerlund, 1902
Xerotringa Monterosato, 1893
Xerovaga Monterosato, 1893
Xerovaria Monterosato, 1893
Xerovera Monterosato, 1893
Xinnanospira
Xiphiozona Berry, 1919
Xiphoceramus Heinz, 1932
Xiphoteuthis Owen, 1881
Xiphotheutis Schwetzoff, 1913
Xixiangethes Qian, Xie & He, 2001
Xya Herrmannsen, 1849
Xyclohelyx Paetel, 1888
Xylohelix Mörch, 1852
Xyrama Herrmannsen, 1849
Xystritheca Qian, Yin & Xiao, 2000
Yabeites Endo, 1935
Yacutolithuus
Yacutospira Missarzhevskii, 1995
Yakounites McLearn, 1927
Yakounoceras McLearn, 1927
Yangtzechiton Yu, 1984
Yangtzemerisma Yu Wen, 1984
Yangtzespiridae
Yankongovitus Qian Yi, 1978
Yavorskia Fedotov, 1938
Yet Berthold, 1827
Yorkiella Parkhaev, 2001
Zacanthusa Gray, 1852
Zagmena Iredale, 1941
Zaira Simpson, 1900
Zairia Rochebrune, 1886
Zandadjanites
Zanguebarica Fischer, 1881
Zaptychius Walcott, 1883
Zeanoe Gray, 1852
Zebalia Squires & Saul, 2003
Zebra Shuttleworth, 1856
Zebrinops Thiele, 1931
Zelia Gregorio, 1890
Zelotypia Waterhouse, 2001
Zenoe Gray, 1852
Zenolina Iredale, 1941
Zeolia Gregorio, 1880
Zetemina Iredale, 1941
Zigzagites Buckman, 1922
Zilotea Rafinesque, 1815
Zirphaea Gray, 1852
Zoe Monterosato, 1878
Zonatia Jousseaume, 1884
Zoniferella Pilsbry, 1906
Zonitellus Baker, 1928
Zonitotrochus Pilsbry, 1919
Zonyalina Martens, 1865
Zonyalinia Böttger, 1884
Zophos Gude, 1911
Zopoteredo Bartsch, 1923
Zoreia Brusina, 1907
Zucleica Gray, 1852
Zugella Buckman, 1927
Zugocosmoceras Stoll, 1934
Zugokosmokeras Buckman, 1923
Zugophorites Buckman, 1922
Zumpangoceras Basse, 1947
Zurama Gray, 1840
Zygolepas Herrmannsen, 1848
Zygopatella Herrmannsen, 1848
Zygophorites Cossmann, 1924
- Mollusca