Mammalia Linnaeus, 1758
Classification
-
Chordata
- Mammalia Linnaeus, 1758
Aboloceros Gloger, 1841
Abothrion Pictet, 1853
Abothrodon Couto, 1944
Acantherium Gray, 1847
Acanthodon von Meyer, 1843
Achyrodon Owen, 1871
Acmeodor Matthew & Granger, 1921
Acoelodidae Ameghino, 1901
Acromys Trouessart, 1881
Acropetes Geoffroy, 1844
Acrostylops Ameghino, 1901
Acrotherium Ameghino, 1887
Acrotypotherium Rusconi, 1936
Acticyon Stock, 1947
Aculeata Geoffroy, 1795
Aculeodens Weitzel, 1949
Acyon Ameghino, 1887
Adapium Young, 1937
Adelodelphys Cifelli, 2004
Adelotherium Ameghino, 1887
Adelphotherium Ameghino, 1887
Adeotherium Nicholson & Lydekker, 1889
Adianthidae Ameghino, 1891
Adiastaltus Ameghino, 1893
Adiastemus Ameghino, 1893
Adpithecus Ameghino, 1901
Adrastotherium Ameghino, 1887
Adrotherium Filhol, 1883
Aedipus Lesson, 1840
Aegagrus Pallas, 1776
Aegialodontidae Kermack, 1967
Aegionomus Ranzani, 1820
Aegipan Rafinesque, 1815
Aelureidopus Woodward, 1915
Aeotragus Dietrich, 1950
Afrikanthropus Weinert, 1938
Afriquiamus Sigogneau-Russell, 1999
Afrochoerus Leakey, 1942
Afrosoricida Stanhope, 1998
Aftonius Hay, 1913
Aglophema Rafinesque, 1814
Agnocyon Kaup, 1861
Ailurena Stirton & Wayne, 1940
Ailuromachairodus Kretzoi, 1929
Akenodon Aymard, 1856
Akhnatenavus Holroyd, 1999
Alacodon Quinet, 1964
Alamitherium Bonaparte, 2002
Albionbaataridae
Alce Smith, 1827
Alcicephalus Rodler & Wiethofer, 1890
Aleamastodon Hoffsetter, 1952
Allops Marsh, 1887
Alloscapanus Baudelot, 1968
Alopecurus Steedman, 1833
Altippus Douglass, 1908
Amarorhynchus Ameghino, 1894
Amblyotus Kolenati, 1858
Amebelodontidae
Ameghinichnidae
Ameghinotherium Podestá, 1898
Amerhippus Hoffstetter, 1950
Ameribaatar Eaton & Cifelli, 2001
Amilnedwardsia Ameghino, 1901
Amilnedwardsiidae
Ammotherium Ameghino, 1891
Amnotherium Ameghino, 1891
Amphalopex Kaup, 1862
Amphiarctos de Blainville, 1841
Amphiarctus Agassiz, 1846
Amphibos Rütimeyer, 1865
Amphibradys Scillato-Yane & Carlini, 1998
Amphichneumon Gervais, 1859
Amphicneumon Lyddeker, 1885
Amphicynops Kretzoi, 1941
Amphicyonopsis Viret, 1929
Amphidontidae Simpson, 1925
Amphigonus Agassiz, 1838
Amphilemus Heller, 1935
Amphilestidae Osborn, 1888
Amphimachairodus Kretzoi, 1929
Amphinasua Moreno & Mercerat, 1891
Amphiproviverra Ameghino, 1891
Amphiptera Giglioli, 1870
Amphisciurus Lydekker, 1885
Amphitemnus Ameghino, 1904
Amphithereuthes Ameghino, 1894
Amphitheriidae Owen, 1846
Amphitylus Osborn, 1887
Amygodon Agassiz, 1846
Amyxodon Cautley & Falconer, 1835
Anadolops Ameghino, 1903
Anaema Bonaparte, 1831
Ananarcus Duméril, 1806
Ananareus Gray, 1843
Anaptagenia Trouessart, 1881
Anaptogenia Trouessart, 1880
Anaptogonia Cope, 1871
Anarcus Froriep, 1806
Anarmacus Zittel, 1892
Anarnac Froriep, 1804
Anarnacus Tiedemann, 1808
Anarnak Lacepède, 1804
Anarnakus Gray, 1846
Anatherium Ameghino, 1887
Anathitus Ameghino, 1893
Anatolimys Shevyreva, 1994
Anchisodon Cope, 1879
Anchllestes Qui & Li, 1977
Andinogale Hoffstetter & Petter, 1983
Androconus Quinet, 1965
Androsorex Quinet, 1964
Anisodelphis Rovereto, 1915
Anisolophus Burmeister, 1885
Anissodolops Ameghino, 1903
Anomodontherium Mercerat, 1891
Anooema Murchison, 1832
Antelotherium Lydekker, 1876
Anthropolithus Gmelin, 1793
Anthropomorfus Ameghino, 1884
Anthropomorphus Ameghino, 1884
Anthropops Ameghino, 1891
Antoletherium Falconer, 1868
Antropomorphus Ameghino, 1884
Anuromeles Heller, 1897
Apar Geoffroy, 1835
Apatemyidae Matthew, 1909
Aphelotherium Gervais, 1848-, 1852
Apistomys Méhely, 1914
Apternodontidae Matthew, 1910
Arachnocebus Lesson, 1840
Araedon Simpson, 1937
Aralosorex Lopatin, 2004
Archaeanthropus Sergi, 1910
Archaeocardia Cossmann, 1902
Archaeocetus Sinzow, 1898
Archaeochaegus Giglioli, 1874
Archaeodolops Ameghino, 1903
Archaeohyracidae Ameghino, 1897
Archaeolophus Ameghino, 1897
Archaeomangus Lopatin, 1997
Archaeopithecidae Ameghino, 1897
Archaeoplus Ameghino, 1898
Archerium Wroe & Mackness, 2000
Archizonurus Vis, 1889
Arcticanodon Rose, Eberle & McKenna, 2004
Arctocyonia Van Valen, 1969
Arctocyonidae Murray, 1866
Arctocyonoidea Trouessart, 1885
Arctodon Leidy, 1851
Arctostylopidae Schlosser, 1923
Argillotherium Davies, 1884
Arginbaataridae Hahn & Hahn, 1983
Arguimuridae
Arguitheriidae
Arhinolemur Ameghino, 1898
Arhinolemus Trouessart, 1899
Arionicus van Beneden, 1868
Arionis Pictet, 1853
Arionius von Meyer, 1841
Armodillo Agassiz, 1842
Armodillus Wagner, 1763
Arnee Anon., 1845
Arrhinolemur Ameghino, 1899
Arsinoitheriidae Andrews, 1904
Artiodactyla Owen, 1841
Artionyx Osborn & Wortman, 1893
Artodictis Mercerat, 1891
Arvaldus Cray, 1973
Asiatheriidae
Asioryctidae
Astigale Zhang Yuping & Tong Yongsheng, 1981
Astrapodon Ameghino, 1891
Astrapotheriidae Ameghino, 1887
Ateleodon Schlaikjer, 1935
Atelocheirus Geoffroy, 1806
Atelodus Pomel, 1853
Atokatheridium Kielan-Jaworowska & Cifelli, 2001
Atryptherium Ameghino, 1887
Augustidens Repenning, 1967
Ausktribosphenidae Rich et al., 1997
Austriacopithecus Ehrenberg, 1937
Austroportax Kretzoi, 1941
Austrotriconodontidae Bonaparte, 1992
Avitotherium Cifelli, 1990
Aybelodon Frick, 1933
Ayeaye Lacepède, 1799
Badacterium Croizet, 1842
Badactherium Croizet, 1846
Baenodon Ameghino, 1894
Baenomys Matthew & Granger, 1925
Baicalopusa Dybowski, 1929
Barangia Gray, 1865
Barbereniidae
Barinya Wroe, 1999
Barylambdidae Patterson, 1939
Basarabictis Kretzoi, 1942
Bathyleptodon Lönnberg, 1937
Belbelus Heude, 1897
Bemalambdidae Chow et al., 1973
Benaius Wang & Jin, 2004
Bensomonys Gazin, 1942
Benturong Pictet, 1853
Berroia Kraglievich, 1932
Biber Artaud, 1803
Bidens Fischer, 1814
Bisonus Hodgson, 1835
Bissonius Gray, 1843
Blaria Gray, 1842
Blickotherium Frick, 1933
Bobac Fischer, 1808
Boffiidae Hahn & Hahn, 1983
Bolodontidae Osborn, 1887
Bonasus Wagner, 1844
Bondesiidae
Boreastylops Vucetich, 1981
Boreolepus Barrett-Hamilton, 1911
Boreopithecus Friederichs, 1932
Borioicon Büchner, 1889
Borungaboodie Prideaux, 1999
Botheratiotherium de Blainville, 1838
Bothriolabis Lydekker, 1891
Bothriostylops Zheng Jiajian & Huang Xueshi, 1986
Bothrolabis Cope, 1888
Brachictis Kretzoi, 1945
Brachiopithecus Sénéchal, 1839
Brachygnathopithecus Kitching, 1952
Brachymelis Miklouho-Maclay, 1884
Brachymeryx Cope, 1878
Brachyostracon Brown, 1912
Brachyura Spix, 1824
Bradicebus Gervais, 1836
Bradycebus Gray, 1870
Brandoniidae
Brauronia Reichenbach, 1863
Bravardia Cattoi, 1941
Breameryx Furlong, 1946
Brievabradys Villarroel, 2000
Brochus Oken, 1838
Bubodens Wilson, 1987
Budomys Bravard, 1843
Bularchus Hopwood, 1936
Bulatia Gabunia & Shevyreva, 1994
Bunaelurus Cope, 1873
Buncelunus Scott, 1893
Bunobrachyodus Depéret, 1908
Bunochoerus Hemprich & Ehrenberg, 1832
Bunodontherium Mercerat, 1891
Bunolophodon Vacek, 1877
Buselaphus Reichenbach, 1845
Bustylus Gheerbrandt & Russell, 1991
Cachalot Hamilton, 1837
Cadurcopsis Kretzoi, 1942
Caelogonus Anonymous, 1845
Cailuxotherium Filhol, 1880
Calchaquitherium Nasif, Musalem & Cerdeno, 2000
Caliphrium Ameghino, 1895
Callistoe Babot, Powell & de Muizon, 2002
Callistrophus Wagner, 1860
Callodontomys Ameghino, 1889
Callomenus Ameghino, 1891
Calocephala Blyth, 1840
Calydonius von Meyer, 1846
Camargomendesia de Paula Couto, 1978
Cameliscus Kretzoi, 1954
Camelodon Granger, 1910
Camelotherium Bravard, 1857
Campanorcidae
Campsiurus Link, 1795
Campylocynodon Chaffee, 1954
Canicula Daubenton, 1782
Canipeda Vialov, 1983
Canna Gray, 1821
Capaccinius Bonaparte, 1841
Capaccinus Gray, 1866
Capreolina Tokunaga & Takai, 1936
Capricerva Geoffroy, 1767
Cardiodus Trouessart, 1881
Carnilestes Wang & Zhai, 1995
Carnivora Bowdich, 1821
Carodniidae Paula Couto, 1952
Carolibergia Mercerat, 1899
Carolocoutoia Goin, Oliveira & Candela, 1998
Carsoptychus Simpson, 1936
Castoromys Pomel, 1852
Cataglochis Pomel, 1853
Catastylops Ameghino, 1901
Catathlaeus Cope, 1881
Catoglochis Croizet & Jobert, 1826
Catoglokis Robert, 1830
Cattus Schmerling, 1834
Catus Fitzinger, 1861
Caudivolvulus Duméril, 1806
Cayluxotherium Filhol, 1880
Cedaromys Eaton & Cifelli, 2001
Cephanodus Ameghino, 1902
Ceratonia Costa, 1839
Ceratotoxodon Ameghino, 1907
Ceratoxodon Ameghino, 1907
Cercopteropus Burnett, 1829
Cervaviscus Kretzoi, 1952
Cervavus Schlosser, 1903
Cervillus Heude, 1898
Cervocerus Chomenko, 1913
Cesserassictis Filhol, 1888
Cetacea Brisson, 1762
Cetaceum von Meyer, 1833
Cete Schneider, 1795
Cetophis Cope, 1868
Cetotheriomorphus Brandt, 1873
Cetotolites Owen, 1846
Chacus Zurita, 2002
Chaelodus Agassiz, 1842
Chaeroniscus Thomas, 1928
Chaerotherium Cautley & Falconer, 1836
Chalepotherium Simpson, 1928
Chambilestes Gheerbrandt & Hartenberger, 1999
Changlelestidae
Charopota Jaeger, 1850
Chasmotherium Rütimeyer, 1862
Cheieromys Cuvier, 1800
Cheirolites Meyer, 1848
Cheirolithes Meyer, 1848
Cheiropotamus Ritgen, 1824
Cheiropteruges Ramsay, 1877
Cheirosciurus Gray, 1863
Chelodon Gloger, 1841
Chelodus Kaup, 1832
Cheropotamus Meyer, 1838
Cheropotomus Swainson, 1835
Chinchia Gray, 1842
Chiodon Berg, 1899
Chiroptera Blumenbach, 1779
Chirox Cope, 1884
Chleuastrochoerus Pearson, 1928
Choeropithecus Boddaert, 1786
Choerotherium Cautley & Falconer, 1835
Choichephilum Ameghino, 1899
Choilodon Filhol, 1888
Choiropithecus Reichenbach, 1863
Choirotherium de Blainville, 1847
Chronoperatidae
Chronozoon de Vis, 1883
Chryseus Smith, 1839
Chthonoergus Agassiz, 1842
Chthonurgus Agassiz, 1846
Chtonoergus Keyserling & Blasius, 1840
Chunnelodon Ensom & Sigogneau-Russell, 1998
Cimolestidae Marsh, 1889
Cimolodontidae Marsh, 1889
Cimolomyidae Sloan & Van Valen, 1965
Cinche Oken, 1816
Cingulata Illiger, 1811
Civetea Beauvois, 1796
Civetta Geoffroy & Cuvier, 1795
Cladoclinus Ameghino, 1894
Cladodidelphys Ameghino, 1904
Claeetes Billberg, 1828
Claetes Billberg, 1827
Clenia Ameghino, 1904
Clenialites Ameghino, 1909
Cnephaiophilus Fitzinger, 1870
Coala Ritgen, 1824
Coandus Fischer, 1808
Cochilius Ameghino, 1902
Coelogomphodus Ameghino, 1891
Coendus Duméril, 1806
Coenomeryx Hürzeler, 1937
Colodus Wagner, 1861
Coloreodon Cope, 1879
Colotaxis Cope, 1873
Conaspidotherium Lemoine, 1891
Conorytes
Cordillerion Osborn, 1926
Coresodon Ameghino, 1895
Coryphodontidae Marsh, 1876
Cotylops Leidy, 1851
Cournomys Zittel, 1893
Crassicuon Kretzoi, 1941
Cremoriventer Bonhote, 1903
Crenidelphinus Laurillard, 1844
Creoadapis Lemoine, 1894
Creodontipus Santamaria, Lopez & Casanovas-Cladellas, 1990
Csakvaromys Kretzoi, 1951
Ctenocerus Kretzoi, 1941
Cuama Gray, 1821
Cubanocnus Kretzoi, 1968
Cucang Geoffroy & Cuvier, 1840
Cultridens Croizet & Jobert, 1827
Cunichnoides Hitchcock, 1858
Cursus Gray, 1849
Cuvierimys Stehlin & Schaub, 1951
Cyclognathus Bronn, 1848
Cyclognatus Geoffroy St. Hilaire, 1835
Cyclopia Gray, 1841
Cycloturus Sclater, 1871
Cymatotherium Kaup, 1841
Cymototherium Gray, 1869
Cynochoerus Kaup, 1859
Cynohyaena de Blainville, 1837
Cynopus Geoffroy, 1835
Cynos Geoffroy, 1767
Cyriacotheriidae Rose & Krause, 1982
Dactylochilus Brandt, 1878
Daeodon Cope, 1878
Daledon Zittel, 1892
Dalodon Zittel, 1893
Damacerus Chomenko, 1913
Daman Pomel, 1848
Damelaphus Coues, 1896
Daphaenocyon Hough, 1948
Daptophilus Cope, 1873
Dasypotherium Moreno, ?, 1889
Dasytrichus Brants, 1827
Dasyurodon Andreae, 1887
Dasyuromorphia Gill, 1872
Decaconus Ameghino, 1901
Decastis Ameghino, 1891
Decticus Aymard, 1853
Degonia Roth, 1901
Deilotherium Filhol, 1882
Delphax Walbaum, 1792
Delphimaptera Anon., 1845
Delphinoides Pédroni, 1846
Delphinorhynchidae Sclater, 1887
Delphinorhynchus Blainville, 1817
Delphinorhyncus Cuvier, 1829
Delphinorinchus Paolo, 1897
Delphis Gray, 1864
Delsatia Sigogneau-Russell & Godefroit, 1997
Deltatheridiidae Gregory & Simpson, 1926
Deltatheroididae
Deltatherus Nessov, 1997
Demotherium Schinz, 1832
Denisodon Hahn & Hahn, 2003
Dermoptera Illiger, 1811
Deseadognathus Carlini & Scillato-Yane, 2004
Desmostylidae Osborn, 1905
Diabroticus Pomel, 1848
Diacartherium Ameghino, 1888
Diacocherus Gingerich, 1983
Diamantohyns Stromer, 1922
Diaphorodon Simpson, 1927
Diaphragmodon Mercerat, 1891-93
Diastomicodon Ameghino, 1884
Dicaelophorus Trouessart, 1897
Dicea Hibbard, 1939
Dicerus Billberg, 1827
Dichotrichus Gray, 1869
Dicoelophorus Ameghino, 1888
Dicrocynodontidae Marsh
Dicyclotherium Geoffroy St. Hilaire, 1837
Didelotherium Haeckel, 1895
Didelphimorphia Gill, 1872
Didolodontidae Scott, 1913
Dilestes Ameghino, 1902
Dilobodon Ameghino, 1883
Dimadon Kaup, 1844
Dimerostephanos Ameghino, 1902
Dimylidae Schlosser, 1887
Dinocynops Ameghino, 1898
Dinolemur Filhol, 1895
Dinosorex Engesser, 1972
Dinotomius Williston, 1895
Dinotoxodon Mercerat, 1895
Diobroticus Flower & Lydekker, 1891
Diocartherium Ameghino, 1889
Diodypus Rafinesque, 1815
Dioplon Brookes, 1828
Dioplum Rafinesque, 1814
Diorotherium Ameghino, 1891
Dipilus Ameghino, 1890
Diplobune Rütimeyer, 1862
Diplocus Pictet, 1853
Diplotherium Jourdan, 1852
Diplotremus Ameghino, 1889
Diposorex de Blainville, 1838
Diprotodontia Owen, 1866
Dipterocetus Gloger, 1841
Discolomys Ameghino, 1889
Ditetrodon Cope, 1885
Djaludjangi Brammall, 1999
Djarthia Godthelp, Wroe & Archer, 1999
Docodontidae Simpson, 1929
Dolichotherium Gloger, 1841
Donodontidae
Dorecopsis Gray, 1849
Dormaaliidae Quinet, 1964
Dorsetodon Ensom & Sigogneau-Russell, 1998
Doryceros Fitzinger, 1874
Doryrhina Peters, 1871
Dracoclaenus Gazin, 1939
Drastis Billberg, 1827
Drescheratherium Krebs, 1998
Dryolestidae Marsh, 1879
Drytomomys Anthony, 1922
Dryxis Rafinesque, 1815
Ducantalpa Boitard, 1841
Dukecynus Goin, 1997
Duperetia Shikama, 1936
Duquettichus Sarjeant & Thulborn, 1986
Durudawiri Crosby & Archer, 2000
Dynamictis Ameghino, 1891
Dyscotylopus Stock, 1935
Dyseomeryx Matthew, 1924
Dysodus Cope, 1879
Dysseohyus Stock, 1937
Dystheatus Illiger, 1815
Dystychoceras Kretzoi, 1941
Earendil van Valen, 1978
Echemys Anon., 1829
Echinodes Trouessart, 1879
Ecphantodon Mercerat, 1891
Ectacodon Cope, 1881
Ectocentrocristus Rigby & Wolberg, 1987
Ectoconodon Osborn, 1898
Elachoceras Scott, 1886
Elaphotherium Delfortrie, 1876
Elasmodon Falconer & Cautley, 1847
Eleomys Gray, 1842
Elismodon Gray, 1842
Elocyon Aymard, 1850
Elodon Kretzoi, 1941
Elomys Aymard, 1848
Embassis Cope, 1873
Emmenodon Cope, 1889
Emperodon Simpson, 1935
Empomophorus Temminck, 1841
Enagrus Rafinesque, 1815
Enbradys Leidy, 1853
Encheiziphius Rütimeyer, 1857
Encinepeltus Ameghino, 1891
Endotheriidae
Entellus Gray, 1870
Entelomorphus Ameghino, 1889
Entelostylops Ameghino, 1901
Entocasmus Ameghino, 1891
Eoastrapostylopidae
Eoastrapostylops Soria & Powell, 1981
Eobaataridae
Eochalicotherium Ameghino, 1901
Eocoleophorus Oliveira, Ribeiro & Bergqvist, 1997
Eodidelphys Ameghino, 1891
Eodiprotodon Ameghino, 1890
Eoequus Quinn, 1955
Eolicaphrium Ameghino, 1902
Eomaia Ji, Luo, Yuan, Wible, Zhang & Georgi, 2002
Eomeryx Marsh, 1877
Eometarhinus Osborn, 1920
Eonaucum Scillato-Yane & Carlini, 1998
Eopithecus Gaudry, 1866
Eoprocardia Trouessart, 1904
Eoraetia Dietrich, 1937
Eostylops Ameghino, 1901
Eosyndactylus Ameghino, 1890
Eoungulatum Nessov, Archibald & Kielan-Jaworowska, 1998
Eoxerus Major, 1893
Epanthropos Cope, 1879
Epanthropus Stiles & Hassall, 1925
Epapheliscus Van Valen, 1966
Ephelcomenus Hürzeler, 1938
Ephyrachyus Wood, 1934
Epiaphelops Cook, 1912
Epichriacus Scott, 1892
Epieuryceros Ameghino, 1889
Epipithecus Ameghino, 1903
Epirusa Zdansky, 1926
Epoicotheriidae Simpson, 1927
Ereptodon Leidy, 1853
Erethryson Torne, 1891
Ergilia Gromova, 1952
Ergilictis Lopatin, 1997
Erinacei Gureev, 1979
Erinaceomorpha Gregory, 1910
Erinaceota van Valen, 1967
Eriocomus Haeckel, 1889
Ernanodontidae Ding, 1979
Eryomis Lesson, 1840
Essoprion Ameghino, 1891
Esthonychidae Cope, 1883
Etadonomys Hibbard, 1943
Euangelistes Simpson, 1930
Eubradys Leidy, 1855
Eucelophorus Ameghino, 1909
Eucetus Du Bus, 1867
Euchaerops Trouessart, 1898
Euchaerus Gervais, 1855
Euchaetomys Fitzinger, 1867
Euchoerus Leidy, 1853
Eucosmodontidae Jepsen, 1940
Eucritus Fischer, 1817
Eucrocidura Acloque, 1899
Eucrocuta Viret, 1954
Eudelphis de Bus, 1872
Eudiastatus Ameghino, 1891
Eudomys Croizet, 1843
Euelephas Falconer, 1857
Eugeranops Ameghino, 1891
Euhyperoodon Acloque, 1899
Eulambda Ameghino, 1904
Eumeganys Kraglievich, 1929
Eumus Acloque, 1899
Eumylodon Ameghino, 1904
Eunuchus Rafinesque, 1832
Euphilus Ameghino, 1889
Eupithecops Ameghino, 1897
Euplocamus Haeckel, 1889
Euprocyon Gray, 1865
Eurodon Estravis & Russell, 1992
Eurylambda Simpson, 1930
Eurymylidae Matthew et al., 1929
Eurysodon Mercerat, 1891
Eurystephanodon Roth, 1903
Eurystomus Roth, 1901
Eurytherium Gervais, 1850
Eusyodon Leidy, 1886
Euthycomus Haeckel, 1889
Eutrachytheres Roth, 1900
Eutrictis Fraas, 1870
Exochura Kolenati, 1858
Feliopsis Stremme, 1911
Ferugliotheriidae Bonaparte, 1986
Fimbrethil van Valen, 1978
Foina Gray, 1865
Fractinus Higgins, 2003
Furiella Gray, 1866
Furunculus Linnaeus, 1766
Galelestes Sherborn, 1904
Galerocnus Arredondo & Rivero, 1997
Galestes Gore, 1874
Galex Meyen, 1833
Gallardodon Marelli, 1953
Galliaetatus Ameghino, 1905
Gamphotherium Gloger, 1841
Ganbulanyi Wroe, 1998
Garzonia Ameghino, 1891
Gashatostylops Cifelli, Schaff & McKenna, 1989
Gazelloportax Kretzoi, 1941
Geisotodon Bergounioux & Crouzel, 1955
Gelaucus Bonney, 1880
Genomys Brookes, 1828
Geolabididae McKenna, 1960
Geopithecus Geoffroy, 1829
Gephyranodus Ameghino, 1891
Gergoviomys Blainville, 1840
Gerontochoerus Leakey, 1943
Gervaisyus Sige, 1990
Getulus Gray, 1821
Gidleumys Wood, 1936
Gigantobison Skinner & Kaisen, 1947
Gillisonchus Rigby, 1981
Glaphiurus Gray, 1842
Glareolus Oken, 1816
Glirodon Engelmann & Callison, 1999
Globilemur Major, 1897
Glyptocoileus Castellanos, 1952
Glyptodontidum Cabrera, 1944
Glyptopedius Castellanos, 1953
Gnathobelodon Barbour & Sternberg, 1935
Gnu Berthold, 1827
Gobiopithecus Dashzeveg & Russell, 1992
Gobisorex Sulimski, 1970
Gobitherium Kretzoi, 1943
Gondwanatheriidae Bonaparte, 1986
Gonopithecus Ameghino, 1903
Grangerinus Wood, 1936
Graphimys Ameghino, 1891
Griquatherium Haughton, 1922
Gronotherium Ameghino, 1887
Gryphotherium Trouessart, 1899
Gryphus Schubert, 1823
Grypolithax Kellogg, 1931
Grypotherium Reinhardt, 1879
Gryza Billberg, 1827
Guichilambda Huang & Chen, 1997
Guillinomys Lesson, 1842
Guimarotodus Martin, 1999
Gymnoptychus Cope, 1873
Gymnotrichus Alston, 1876
Gyrignophus Ameghino, 1891
Gyrinodon Hopwood, 1928
Hadrorhynchus Ameghino, 1891
Hadrotherium Rye, 1885
Hahnodontidae Sigogneau-Russell, 1991
Halicyon Gray, 1864
Halmadromus Ameghino, 1891
Halmaselus Ameghino, 1891
Halocyon Gray, 1864
Haplacodon Cope, 1889
Haplodontherium Ameghino, 1885
Hapludus Coues, 1889
Haramiyidae Simpson, 1940
Harlamus Owen, 1846
Harlanius Bronn, 1855
Harlanus Owen, 1846
Harpagmotherium Fischer, 1808
Harpagodon Meyer, 1837
Harpogodon Baird, 1851
Harpyodidae Wang, 1979
Hedimys Zittel, 1893
Hedralophus Ameghino, 1901
Hedymys Ameghino, 1887
Hegetotheriidae Ameghino, 1894
Helicolophodon Roth, 1903
Helicophorus Zittel, 1893
Helieoportax Pilgrim, 1937
Helioceras Weithofer, 1889
Helohippus Marsh, 1892
Helotherium Cope, 1872
Hemiacis Cope, 1869
Hemicaulodon Cope, 1869
Hemichaerus Depéret, 1887
Hemiganus Cope, 1882
Hemihipparion Wehrli, 1941
Hemilophodon Kretzoi, 1942
Hemimastodon Pilgrim, 1913
Hemistylops Ameghino, 1904
Henricosborniidae Ameghino, 1901
Heoanthropus Sergi, 1910
Heptaconodon Zdansky, 1930
Hesperanthropus Sergi, 1910
Hesperohippus Hibbard, 1955
Hesperomeryx Stock, 1936
Hetamys
Heterocnemas Young, 1937
Heterodontherium Trouessart, 1905
Heterofelis Cook, 1922
Heterolambda Ameghino, 1904
Heterotalpa Palmer, 1904
Heterotherium de Blainville, 1838
Heterotitanops Peterson, 1914
Hetroprox Stehlin, 1928
Hexodon Cope, 1884
Higotherium Miyata & Tomida, 1998
Hilalia Maas, Thewissen, Sen, Kazanci & Kappelman, 2001
Hipehaphus Hodgson, 1835
Hipparitherium Christol, 1847
Hipphaplous Ameghino, 1885
Hipphaplus Ameghino, 1889
Hippodactylus Cope, 1888
Hippoleakius Deraniyagala, 1947
Hippops Marsh, 1892
Hipporitherium Pomel, 1847
Hipporussa Heude, 1899
Hippos Gray, 1869
Hipposyus Leidy, 1872
Hippotragoides Cooke, 1947
Hispanocervus Viret, 1947
Hoffstetteria Castellanos, 1957
Hoffstetterius Saint-André, 1993
Holoclemensiidae Aplin & Archer, 1987
Holothylax Cabrera, 1919
Homaeocetus Van Beneden, 1877
Homalodotheriidae Gregory, 1910
Homocamelus Leidy, 1869
Homocentrus Ameghino, 1891
Homocetus Lydekker, 1887
Homoeocetus Du Bus, 1867
Homorhinocenos Ameghino, 1889
Homosimius Ameghino, 1907
Homunculites Ameghino, 1902
Hondadelphidae
Hondonadia Goin & Candela, 1998
Horatiomys Wood, 1935
Houtia Agassiz, 1842
Hsiangolestes Zheng & Huang, 1984
Hsianogolestes Zheng Jiajian & Huang Xueshi, 1984
Huananius Huang & Zheng, 1999
Huilabradys Villarroel, 1998
Hyaegulus Pomel, 1851
Hyaenailurus Rütimeyer, 1867
Hyaenalopex Kretzoi, 1952
Hyaenocyon Cope, 1879
Hyaenodictis Lemoine, 1885
Hyaenodontidae Leidy, 1869
Hydrarchos Koch, 1845
Hydrarchus Müller, 1849
Hydrargos Koch, 1845
Hydrocharus Brisson, 1762
Hydrochoeridiiun Kraglievich, 1930
Hydrochoeridium Kraglievich, 1930
Hydrocyon Lartet, 1851
Hydropithecus Gloger, 1841
Hydroscapheus Shotwell, 1956
Hydrotapirus Pohlig, 1888
Hydrotidassum Tilesius, 1850
Hyoenodictis Lemoine, 1880
Hyops Le Conte, 1848
Hyopsodontidae Trouessart, 1879
Hyotapirus Pohlig, 1888
Hyperailurictis Kretzoi, 1929
Hyperfelis Indes, 1869
Hypermekops White, 1942
Hyperoodons
Hypexodon Rafinesque, 1819
Hypictops Gazin, 1949
Hypoleurus Jourdan, 1852
Hypopleurus Schlosser, 1890
Hypotemnodon Eyerman, 1894
Hypotoxodon Kraglievich, 1928
Hypposhyus Ameghino, 1889
Hypselephas Osborn, 1936
Hypselochoerus Loomis, 1933
Hypsitherium Anaya & MacFadden, 1995
Hypsodontidae
Hypsolophodon Kretzoi, 1940
Hyracodontherium Filhol, 1877
Hyracoidea Huxley, 1869
Hyracondontotherium Lydekker, 1889
Hyracops Marsh, 1892
Hyracotherhyus Lemoine, 1880
Hyracotheryus Trouessart, 1898
Hyrocodon Filhol, 1873
Hysterotherium Giebel, 1847
Hystricopsis Viret, 1925
Hystricotherium Pictet, 1853
Hystriocomys Giebel, 1860
Ichneugale Filhol, 1883
Ichneumon Lacepède, 1799
Iconapternodus Tong, 1997
Ictidailurus Kretzoi, 1945
Ignitherus Laurillard, 1849
Indarctus Pilgrim, 1913
Indopithecus Schaub, 1950
Indosuncus Sahni & Kotlia, 1985
Indotragus Kretzoi, 1941
Indozostrodon Datta & Das, 2001
Indrodon Cope, 1884
Indurus Billberg, 1827
Inercytherium Scott, 1893
Infrapithecus Ameghino, 1901
Interatheriidae Ameghino, 1887
Interchoerus Rusconi, 1930
Interodon Ameghino, 1885
Iochilus Ameghino, 1928
Ipshanatherium Lavrov & Averianov, 1998
Isacis Cope, 1873
Isacus Cope, 1873
Isatis Trouessart, 1885
Ischyrodidelphis Couto, 1952
Isodactylella Strand, 1943
Isolophodon Roth, 1903
Isoproedrium Ameghino, 1904
Isostylops Ameghino, 1902
Isotemnidae Ameghino, 1897
Itenocephalus Mercerat, 1891
Ixalus Ogilby, 1837
Janumys Eaton & Cifelli, 2001
Jarveia Nessov, 1987
Jeholodens Ji, Luo & Ji, 1999
Jeholodentidae
Jepsenia Gazin, 1939
Jerboa Zimmermann, 1777
Jiajianictis Tong, 1997
Joculusium Wroe, 2001
Jourdanictis Viret, 1951
Jumbo Walton, 1886
Kansasomys Hibbard, 1938
Kansupithecus Bohlin, 1946
Kathiah Gray, 1865
Kazachostylops Nessov, 1987
Kennetheridium Sigogneau-Russell, 2003
Kentrogomphios White, 1954
Kermackiidae Butler, 1978
Kerodonta Brookes, 1828
Khamsaconus Sudre, Jaeger, Sigé & Vianey-Liaud, 1993
Khoyak Geoffroy & Cuvier, 1795
Khuduklestes Nessov, Sigogneau-Russell & Russe, 1994
Kiyatherium Mashchenko, Lopatin & Voronkevich, 2002
Klohnia Flynn & Wyss, 1999
Kogaionidae
Koholia Crochet, 1988
Kollpaniidae
Kolpohippus van Hoepen, 1930
Kosmelaphus Kretzoi, 1953
Kraterohippus van Hoepen, 1930
Krebsotherium Martin, 1999
Krusatodon Sigogneau-Russell, 2003
Kryptotherium Sigogneau-Russell, 2003
Kuehneotheriidae Kermack et al., 1968
Kumlestes Nessov, 1985
Laboura Billberg, 1828
Lagelaphus Reichenbach, 1845
Lagodus Pomel, 1852
Lagomorpha Brandt, 1855
Laira Cuvier, 1826
Lamantinus Capellini, 1872
Lambdaconops Soria, 2001
Lambdoconus Ameghino, 1897
Lamprodon Wagner, 1848
Laniodon Ameghino, 1881
Laoceras Marsh, 1886
Lataxina Gray, 1843
Lathonus Aymard, 1856
Lectra Lund, 1839
Lecydias Rafinesque, 1815
Leidyotherium Prout, 1860
Leithadamsia Matsumoto, 1928
Lelfunia Roth, 1901
Lemmings Agassiz, 1842
Lemudeus Roth, 1903
Leontiniidae Carroll, 1988
Lepidotherium Agassiz, 1846
Lepitherium Geoffroy, 1833
Leplotherium Lund, 1839
Leptaceratherium Osborn, 1898
Leptacotherulum Filhol, 1877
Leptomanis Filhol, 1893
Leptsiagon Owen, 1874
Lesmesodon Morlo & Habersetzer, 1999
Leucas Brandt, 1873
Leucippe Pomel, 1852
Liarthrus Ameghino, 1895
Libyhipparion Joleaud, 1933
Limnotherium Marsh, 1871
Linnotherium Leidy, 1872
Lipodectes Cope, 1881
Lipura Illiger, 1811
Lissanthropos Haeckel, 1889
Listriotherium Mercerat, 1891
Lithomys Meyer, 1846
Lithops Ameghino, 1887
Litocherus Gingerich, 1983
Lonchoconus Ameghino, 1901
Lonkus Roth, 1901
Lophiodochaerus Lemoine, 1880
Lophiodochoerus Lemoine, 1880
Lophiohyus Sinclair, 1914
Lophiolemur Filhol, 1895
Lophocion Wang & Tong, 1997
Lophocoelodus Trouessart, 1905
Lophocoelus Ameghino, 1904
Lophocomus Haeckel, 1889
Lopholambda Ameghino, 1904
Lophopithecus Trouessart, 1879
Loter Oken, 1816
Lotor Geoffroy & Cuvier, 1795
Lunatoceras Hoffman, 1953
Lupulus de Blainville, 1843
Lutrictis Pomel, 1847
Lycotherium Jaeger, 1850
Lycuon Bourguignat, 1875
Lycyaenops Kretzoi, 1938
Lycyon Bourguignat, 1875
Lydekkeria Osborn, 1925
Lydekkerion Frick, 1926
Lymodon Ameghino, 1891
Macdonaldius Kretzoi & Kretzoi, 2000
Machocyon Gingerich, Arif, Khan, Clyde & Bloch, 1999
Macrauchenidia Cabrera, 1939
Macraucheniidae Gill, 1872
Macrocyon Ameghino, 1881
Macronycteris Gray, 1866
Macrophoca Leidy, 1856
Macropodus Fischer, 1830
Macropristis Ameghino, 1889
Macropterodon Lavrov, 1999
Macrorhina Berthold, 1827
Macrorrhina Berthold, 1827
Macroscelidea Butler, 1956
Macrotarsus Clark, 1941
Macroura Meuschen, 1778
Magnimus Sigogneau-Russell, 1999
Mammontheum de Blainville, 1845
Manatus Storr, 1780
Mangasta Hodgson, 1835
Mangoustes Bowdich, 1821
Mannodon Ameghino, 1893
Manteodon Cope, 1881
Manul Severtzov, 1858
Mapurito Oken, 1816
Marambiotherium Goin, Case, Woodburne, Vizcaino & Reguero, 1999
Marikina Gray, 1843
Marsasia Nessov, 1997
Martinmiguelia Bond & Lopez, 1995
Marunsiomys Croizet, 1853
Masthoterium Lesson, 1842
Mastodontum de Blainville, 1817
Mastotherium Fischer, 1809
Matschieella Poche, 1904
Matthodon Lange-Badre & Haubold, 1990
Matthomeryx Frick, 1937
Maurimontia Stehlin & Schaub, 1951
Mayigriphus Wroe, 1997
Mececyon Stremme, 1911
Mecorhinus Ameghino, 1894
Megacrodon Roth, 1899
Megalacrodon Roth, 1900
Megalocervus Mantell, 1836
Megalodelphis Kellogg, 1944
Megalomeryx Leidy, 1858
Megatheriops Ameghino, 1921
Megazostrodontidae
Megencephalon Osborn, Scott & Speir, 1878
Megencephalum Palacký, 1901
Megera Temminck, 1841
Megopterna Douglass, 1908
Megoreodon Schultz & Falkenbach, 1954
Melampus Gray, 1865
Melido Gomez-Llueca, 1944
Meninatherium Abel, 1910
Menotherium Cope, 1874
Mephititaxus White, 1941
Mericotherium Krueger, 1825
Meryceros Frick, 1937
Merycodon Mercerat, 1891
Merycopater Cope, 1879
Merycops Pilgrim, 1910
Merycotherium Bojanus, 1824
Mesacodon Marsh, 1872
Mesamynodon Peterson, 1932
Mesembriotherium Ameghino, 1889
Mesitotherium Trouessart, 1883
Mesoadapis Lorenz, 1901
Mesochaerus Depéret, 1887
Mesodectes Cope, 1875
Mesodon Ameghino, 1882
Mesolama Ameghino, 1884
Mesonychia Van Valen, 1969
Mesonychoidea Osborn, 1910
Mesoodon Brandt, 1873
Mesorhinoceros Brandt, 1877
Mesorhinus Ameghino, 1885
Mesotapirus Osborn, 1889
Mesotheriidae Alston, 1876
Messelina Tobien, 1962
Mesungulatidae Bonaparte, 1986
Metacervocerus Dietrich, 1938
Metacheiromyidae Wortman, 1903
Metachriacus Simpson, 1935
Metacoenopus Cook, 1909
Metadeiniktis Kretzoi, 1929
Metadichobune Filhol, 1877
Metaepanorthus Ameghino, 1894
Metalophodon Cope, 1872
Metanthropos Cope, 1879
Metanthropus Stiles & Hassall, 1925
Metarchidiskodon Osborn, 1934
Metasimia Ameghino, 1884
Meterix Hall, 1929
Methylobateos Ameghino, 1884
Methylobates Ameghino, 1884
Metochotona Kretzoi, 1941
Metopotherium Ameghino, 1891
Metriodromus Ameghino, 1894
Microbiotheria Ameghino, 1889
Microbiotheridion Ringuelet, 1953
Microcnus Matthew, 1918
Microlistes Plieninger, 1848
Microlunodon Depéret, 1908
Micronus Matthew, 1931
Micropternodontidae
Microselenodon Depéret, 1908
Microstylops Ameghino, 1901
Microtomys Méhely, 1914
Mimolagidae
Mimotonidae Li, 1978
Minimus Sigogneau-Russell, 1999
Miobasileus Cope, 1873
Mioclaenidae Osborn & Earle, 1895
Miocrocidosorex Lopatin, 2004
Miolophus Owen, 1865
Miomastodon Osborn, 1922
Miomegaderma Gaillard, 1929
Miopanthera Kretzoi, 1938
Miospalax Stromer, 1928
Miothen Cope, 1873
Mioxicebus Lesson, 1840
Mioziphius Abel, 1905
Missourium Koch, 1840
Missurium Koch, 1840
Mixochoerus Roger, 1887
Mixoclaenus Matthew & Granger, 1921
Mixodectidae Cope, 1883
Mixohyrax Schlosser, 1910
Mixophagus Cope, 1869
Mnuolagus Billberg, 1828
Moco Lund, 1840
Molaetherium Storch & Rummel, 1999
Molossides Allen, 1932
Monacrum Aymard, 1853
Mongo Lesson, 1842
Mongoloryctes Van Valen, 1966
Mongoloscapter Lopatin, 2002
Mongolosorex Qiu, 1996
Monoeidodon Roth, 1898
Monolophodon Roth, 1903
Monotremata Bonaparte, 1837
Monshyus Sudre & Russell, 1982
Montanalestes Cifelli, 1999
Morganucodontidae Kühne, 1958
Morphelaphus Filhol, 1890
Moschatus Anonymous, 1845
Mucrotherium von Huene, 1933
Mulus Geoffroy, 1767
Munefelis Gore, 1874
Munifelis Muñiz, 1845
Munizia Kraglievich, 1931
Murinus Rafinesque, 1815
Murtoilestes Averianov & Skutschus, 2001
Muscides Berthold
Museides Berthold
Mussascus Oken, 1816
Myarion Pomel, 1852
Mydecodon Wilson, 1960
Mygalus Retzius, 1796
Myloglyptodon Ameghino, 1884
Myolemmus Pomel, 1852
Myomeryx Roger, 1896
Myomorphus Pomel, 1868
Myonax Thomas, 1928
Myopotherium Lydekker, 1887
Myoschylos Molina, 1810
Myotalpavus Miller, 1928
Myoterium Aymard, 1854
Myotes
Myoxocebus Agassiz, 1846
Myoxoides Brookes, 1828
Myoxomys Tomes, 1861
Myrmecolichnus Reichenbach, 1836
Myxocherus Filhol, 1882
Myxochoerus Filhol, 1882
Myxophagus Leidy, 1869
Nanelaphus Fitzinger, 1874
Nannodus Ameghino, 1891
Nanoastegotherium Carlini, Vizcaino & Scillato-Yane, 1997
Nanohyus Leidy, 1869
Nanolestes Martin, 2002
Napodonictis Ameghino, 1893
Napu Lesson, 1842
Narwhal Walbaum, 1792
Necrodasypus Filhol, 1894
Necrolestidae Amenghino, 1894
Necrosorex Filhol, 1890
Nelogenys Lund, 1840
Neoadinotherium Bordas, 1941
Neobrachytherium Soria, 2001
Neobradypus Lönnberg, 1942
Neoctenacodon Lemoine, 1891
Neogeus Gervais, 1873
Neolestodon Calcaterra, 1977
Neolicaphrium Frenguelli, 1921
Neomeryx Parks, 1926
Neoparacamelus Khaveson, 1950
Neophractus Esteban & Nasif, 1996
Neoplagiaulacidae Ameghino, 1890
Neoschizotherium Viret, 1947
Neotrigodon Spillmann, 1949
Neovulpavus Wortman, 1901
Nephacodus Ameghino, 1902
Nephotherium Ameghino, 1886
Nephrosteon Rafinesque, 1832
Nephrosteum Agassiz, 1846
Nesohippidion Ameghino, 1904
Nesopithecus Major, 1896
Nesotherium Mercerat, 1891
Nimiokoala Black & Archer, 1997
Nimravinus Kretzoi, 1945
Nimraviscus Kretzoi, 1945
Niphredil van Valen, 1978
Noaditherium Ameghino, 1907
Noctifelis Geoffroy, 1844
Noctilinia Hodgson, 1847
Noctulinia Gray, 1842
Nonotherium Castellanos, 1942
Nosella Peláez-Campomanes, 1999
Notaelephas Palmer, 1904
Notaphrum Rafinesque, 1815
Notelephas Owen, 1882
Nothobos Frenguelli, 1933
Nothobus Billberg, 1828
Nothodectes Matthew, 1915
Notoelephas Jack & Etheridge, 1892
Notohipparion Haughton, 1932
Notohippidae Ameghino, 1894
Notohyrax Ameghino, 1901
Notonychopidae
Notonychops Soria, 1989
Notopachyrucos Rusconi, 1933
Notoprotogonia Ameghino, 1904
Notoryctemorphia Kirsch in Hunsaker, 1977
Notosciurus Allen, 1914
Notostylopidae Ameghino, 1897
Nowidgee Cooke, 1997
Nutria Gray, 1865
Nycterobius Revilliod, 1926
Nycterops Gray, 1866
Nycterus Bechstein, 1800
Nycticonodon Quinet, 1964
Nylgau Gray, 1821
Ocalientinus Frick, 1933
Ocepeia Gheerbrant & Sudre, 2001
Ochotherium Pictet, 1853
Ocnotherium Lund, 1842
Ocrodon Gore, 1874
Octotomus Cope, 1885
Odobenotherium Gratiolet, 1858
Odocerus Rafinesque, 1815
Odontomysops Ameghino, 1902
Oenotherium Wagner, 1843
Ogoria Fischer de Waldheim, 1814
Olbitherium Tong, Wang & Meng, 2004
Olbodotes Osborn, 1902
Olbotes Trouessart, 1904
Oldfieldthomasia Ameghino, 1901
Oldfieldthomasiidae Simpson, 1945
Oligobiotherium Ameghino, 1901
Oligodens Burmeister, 1891
Oligotherium Ameghino, 1884
Oligotomus Cope, 1873
Ollinotherium Zittel, 1893
Oltinotherium Delfortrie, 1874
Olygodon Ameghino, 1883
Olygotherium Ameghino, 1885
Omegadon Agassiz, 1846
Omegodon Agassiz, 1846
Omegodus Pomel, 1852
Omochoerus Arambourg, 1943
Omoloxodon Deraniyagala, 1955
Ondathra E.A., 1797
Onychotherium Fischer, 1809
Onychura Brookes, 1828
Onza Krueger, 1825
Ophenodon Palmer, 1904
Ophiorrhiza Gloger, 1841
Ophthalmomegas Dehaut, 1911
Opisthopsalis Matthew, Granger & Simpson, 1929
Opisthorhinus Bravard, 1857
Opistorhinus Trouessart, 1898
Opistorinus Gervais, 1867
Oplotherium Laizer & Parieu, 1838
Orangiatherium van Hoepen, 1932
Orchiomys Ameghino, 1897
Oreinotherium Russel, 1934
Orenomis Aymard, 1856
Orenomys Aymard, 1855
Oreocyon Marsh, 1872
Oreomeryx Mercerat, 1891
Oreomylodon Hoffstetter, 1949
Oreomys Trouessart, 1881
Ormenalurus Jourdan, 1866
Ornythorinchus
Orocavia Kraglievich, 1932
Oromys Leidy, 1853
Oronopusa Dybowski, 1929
Ortalestes Nessov, 1997
Orthia Reichenbach, 1863
Orthodolops Ameghino, 1903
Orthutaetus Ameghino, 1902
Oryctere Kaup, 1835
Orycteres Berthold, 1827
Orycteromys Pictet, 1842
Orycterus Lesson, 1827
Oryctomys de Blainville, 1836
Osmetectis Gray, 1842
Osmetictis Agassiz, 1846
Otcarus Gray, 1821
Otiphaca de Blainville, 1840
Otiphoca de Blainville, 1840
Otlestes Nessov, 1985
Ottoryctes Bloch, Secord & Gingerich, 2004
Ouistiti Berthold, 1827
Oxipterus Minà-Palumbo, 1868
Oxyaenidae Cope, 1877
Oxyclaenidae Scott, 1892
Oxygomphius Meyer, 1846
Oxypterus Rafinesque, 1814
Oxyrhinus Pelzeln, 1883
Ozolictis Gloger, 1842
Ozygotherium von Meyer, 1838
Pachochaerus Rafinesque, 1815
Pachurus Rafinesque, 1815
Pachychoerops Kretzoi, 1941
Pachynasua Ameghino, 1904
Pachynodon Burmeister, 1891
Pachyodon von Meyer, 1838
Pachypithecus Ameghino, 1897
Pachypleurus Brandt, 1873
Pachysiagodon Trouessart, 1898
Pachysiagon Owen, 1873
Pachyterium Lund, 1839
Pachytherium Lund, 1838
Pachyzaedyus Ameghino, 1902
Paecilomys Pictet, 1842
Paedopithex Ameghino, 1907
Paikasigudodon Prasad & Manhas, 2002
Pakilestes Russell & Gingerich, 1981
Palacobalaena Moreno, 1882
Palacodelphis Trouessart, 1898
Palaeacodon Leidy, 1872
Palaehoplophoroides Scillato-Yane & Carlini, 1998
Palaeoamasidae
Palaeobassaris Bronn, 1848
Palaeocardia Ameghino, 1902
Palaeoceros Costa, 1850
Palaeocervus Filhol, 1890
Palaeochirogalus Grandidier, 1899
Palaeocricetus Argyropulo, 1938
Palaeocyon Blainville, 1841
Palaeodaedicurus Castellanos, 1928
Palaeodelphis Du Bus, 1872
Palaeodon Blainville, 1846
Palaeohyus Meyer, 1866
Palaeolemur Filhol, 1873
Palaeolithops Ameghino, 1891
Palaeomanis Forsyth-Major, 1889
Palaeomephitis Jaeger, 1837
Palaeon Aymard, 1855
Palaeopetromys Broom, 1946
Palaeoplatyceros Hernández-Pacheco, 1914
Palaeopontoporia Doering, 1882
Palaeoryctidae Winge, 1917
Palaeoryctoropus Filhol, 1893
Palaeoscalopus Macdonald, 1970
Palaeotaria Leriche, 1910
Palaeotenthes Moreno, 1882
Palaeoteuthis Ameghino, 1889
Palaeotrogos Jaeger, 1839
Palaepanorthus Ameghino, 1901
Palahyrax Haeckel, 1895
Palaiomephitis Jaeger, 1839
Palaiotrogos Jaeger, 1839
Palanaema Gervais, 1859
Palangania Goin, Candela, Bond, Pascual & Escribano, 1998
Palanoema Pomel, 1852
Paleolemur Delfortrie, 1873
Paleomeles Gomez-Llueca, 1944
Paleoparadoxiidae Reinhart, 1959
Palepanorthus Ameghino, 1903
Paleunycteris Revilliod, 1926
Palustrimus Wood, 1935
Pampaeocervus Carette, 1923
Pampatemnus Vucetich & Bond, 1982
Pamphractus Illiger, 1811
Panallodon Rafinesque, 1831
Pandiplus Rafinesque, 1814
Panotherium Wagner, 1861
Pantinomia Van Valen, 1967
Pantolambdidae Cope, 1883
Pantolambdodontidae Granger & Gregory, 1934
Pantolestidae Cope, 1884
Pantostylops Ameghino, 1901
Paomys Matthew, 1924
Pappotheriidae Slaughter, 1965
Parabison Skinner & Kaisen, 1947
Paraboselaphus Schlosser, 1903
Paracaenopus Breuning, 1924
Paracaviodon Kraglievich, 1932
Paraceros Ameghino, 1889
Parachoerus Rusconi, 1930
Paracochilicos Bordas, 1939
Paracoelodus Ameghino, 1903
Paracotylops Matthew, 1901
Paractenomys Ameghino, 1908
Paradesmatochoerus Schultz & Falkenbach, 1954
Paradolichotis Kraglievich, 1927
Paradoxaelurus Filhol, 1892
Paradoxodon Scott, 1892
Paradoxodonta Strand, 1943
Paradoxonycteris Revilliod, 1919
Paraepanorthus Ameghino, 1894
Parahyracodon Belyaeva, 1952
Parameles Young & Liu, 1951
Paramellivora Kretzoi, 1942
Paramerychus Schultz & Falkenbach, 1947
Paramiocnus Arredondo & Arredondo, 2000
Paramoceros Frick, 1937
Paranauchenia Ameghino, 1904
Paranchitherium Borisiak, 1937
Paranisolambda Cifelli, 1983
Paranomys Ameghino, 1889
Parapheliscus Van Valen, 1967
Paraphelops Lane, 1927
Paraplanops Ameghino, 1891
Parapromerycochoerus Schultz & Falkenbach, 1949
Parapseudailurus Kretzoi, 1929
Parapyrotherium Ameghino, 1902
Pararchacomys Stehlin, 1942
Parascelidodon Hoffstetter, 1952
Parasoriculus Qiu & Storch, 2000
Parastegodon Matsumoto, 1924
Paratemnus Ameghino, 1904
Paratragoceros Sokolov, 1949
Paraungulatum Bonaparte, 2002
Pareptesicus Zapfe, 1950
Pareusmilus Kretzoi, 1929
Pareutatus Scott, 1903
Parhalmarhiphus Ameghino, 1894
Paroceras Marsh, 1886
Parovibos Kretzoi, 1942
Paroxyclaenidae Weitzel
Parthenopa Rafinesque, 1814
Parthenopea Minà-Palumbo, 1868
Parutaetus Ameghino, 1902
Parvagula Lange-Badré, 1987
Pascualdelphys Flynn & Wyss, 1999
Pascualihippus Shockey, 1997
Pastoralodontidae Chow & Qi, 1978
Patriarchippus Ameghino, 1904
Patriarchus Ameghino, 1889
Patropithecus Haeckel, 1895
Patrotherium Haeckel, 1895
Paucituberculata Ameghino, 1894
Paulacoutoia Cifelli, 1983
Pauladelphys Goin, Case, Woodburne, Vizcaino & Reguero, 1999
Paulchoffatiidae Hahn, 1969
Paurodontidae Marsh, 1887
Payerna Blainville, 1840
Pecotus Gray, 1821
Pecus Oken, 1816
Pedatis
Pediohippus Schlaikjer, 1935
Pediohyus Loomis, 1910
Pediolagus Hibbard, 1939
Pedrolypeutes Carlini, Vizcaino & Scillato-Yane, 1997
Pehuenia Roth, 1901
Pelamys Jourdan, 1867
Pelandor Thomas, 1888
Pelonax Cope, 1873
Peloriadapis Grandidier, 1899
Pelorocerus van Hoepen, 1932
Peltariophorus Billberg, 1828
Pelycictis Cope, 1896
Peradectidae
Peragonium Haeckel, 1895
Peramelemorphia Ameghino, 1889
Peramuridae Kretzoi, 1946
Perazoyphium Cabrera, 1929
Perea Lund, 1840
Periacrodon Ameghino, 1904
Peribos Lydekker, 1878
Pericotoxodon Madden, 1997
Perieromys Blainville, 1840
Periptychidae Cope, 1882
Perissodactyla Owen, 1848
Perriemys Laurillard, 1848
Perrieromys Trouessart, 1881
Perrodelphys Goin, Case, Woodburne, Vizcaino & Reguero, 1999
Perutheriidae Van Valen, 1978
Perutherium Thaler, 1967
Pestypotherium Haeckel, 1895
Petanrista Rafinesque, 1815
Petersonella Kraglievich, 1948
Petrachoerus Ritgen, 1824
Phalangerus Fischer, 1808
Phaneromeryx Schlosser, 1886
Pharyngotus Deslongchamps, 1865
Phatagenus Sundevall, 1843
Phenacodontidae Cope, 1881
Phenacolophidae
Phenacops Matthew, 1909
Phenacotragus Schwarz, 1937
Philocryptus Gray, 1866
Phobereotherium Ameghino, 1887
Phoberotherium Trouessart, 1898
Phocodon Agassiz, 1841
Pholidota Weber, 1904
Phthinylla Hopwood, 1929
Physotherium Portis, 1886
Picopsidae Fox, 1980
Picunia Roth, 1901
Pikermicerus Kretzoi, 1941
Pilgrimia Osborn, 1925
Pilosa Flower, 1883
Pinheirodontidae
Pitcheir Schinz, 1845
Pitechirus Kaup, 1844
Pithechir Jentink, 1892
Pithechirus Agassiz, 1842
Pithecistes Cope, 1878
Pithecochirus Gloger, 1841
Pithecodon Lorenz-Leburnau, 1900
Pithex Hodgson, 1841
Placocetus Huxley, 1864
Plagiaulacidae Gill, 1872
Plagiocoelus Ameghino, 1894
Plagiolophustipus Santamaria, Lopez & Casanovas-Cladellas, 1990
Plagioptychus Simpson, 1936
Planodus Ameghino, 1887
Platacodon Marsh, 1889
Platatherium Gervais & Ameghino, 1880
Platelephas Osborn, 1936
Platoceras Marsh, 1886
Platonyx Lund, 1840
Platuprosopos Filhol, 1888
Platycemas Teilhard de Chardin & Trassaert, 1937
Platycerobison Skinner & Kaisen, 1947
Platyceros Pomel, 1853
Platydelphis Du Bus, 1872
Platygeomys Merriam, 1895
Platygnathus Krøyer, 1841
Platyodon Gervais, 1876
Platypyga Illiger, 1811
Platystegodon Deraniyagala, 1954
Platythrix Pictet, 1842
Plecautus Cuvier, 1829
Plectrochoerus Pictet, 1843
Pleregnathus Laizer & Parieu, 1838
Plesidacrytherium Roger, 1887
Plesidissacus Lemoine, 1894
Plesiocrocuta Viret, 1954
Plesiogula Zdansky, 1924
Plesiorycteropodidae
Plesiosoricidae Winge, 1917
Plesioxotodon Roth, 1901
Plesiphenacodus Lemoine, 1896
Plesispermophylus Filhol, 1883
Plesydacrytherium Filhol, 1880
Pleurocoelodon Ameghino, 1895
Pleurocyon Kraglievich, 1917
Pleurystomus Ameghino, 1902
Plexochoerus Ameghino, 1886
Plicatodontidae
Plieningeria Krausse, 1919
Pliochotona Kretzoi, 1941
Pliocitellus Hibbard, 1942
Pliodiceros Kretzoi, 1942
Pliodolops Ameghino, 1902
Pliogamphiodon Ameghino, 1885
Plioganphiodon Ameghino, 1884
Pliogula White, 1941
Pliohydrochoerus Kraglievich, 1930
Pliohylobates Dubois, 1895
Pliolemnus Hibbard, 1938
Pliostylops Ameghino, 1901
Pliovormela Kormos, 1934
Poatrephes Douglass, 1903
Pocha
Poecilomys Pictet, 1842
Polycladus Pomel, 1853
Polydiskodon Pohlig, 1888
Polystylops Ameghino, 1904
Pomatohippus Jaeger, 1835
Pontoportax Kretzoi, 1941
Pontotatus Ameghino, 1908
Pooleyichnus Sarjeant, 1975
Porotemnus Ameghino, 1902
Portopinheirodon Martin, 1999
Posteutatus Ameghino, 1902
Postpliopithecus Freudenberg, 1927
Postpotamochoerus Thenius, 1950
Potamohippos Jaeger, 1835
Potamomys Agassiz, 1846
Potamotelsidae Nessov, 1987
Praemadoqua Dietrich, 1950
Praotherium Cope, 1871
Prea Liais, 1872
Prechoeropsis Deraniyagala, 1948
Predentes Brookes, 1828
Premontrelestes Smith, 2001
Prepanorthus Ameghino, 1894
Prepotheriops Ameghino, 1904
Primates Linnaeus, 1758
Prionodes Jourdan, 1852
Prionogale Schmidt-Kittler & Heizmann, 1991
Pristinocetus Trouessart, 1898
Proacrodon Roth, 1899
Proaguti Ameghino, 1908
Proanthropomorfus Ameghino, 1884
Proanthropomorphus Ameghino, 1884
Proanthropos Zittel, 1893
Proarctotherium Ameghino, 1904
Proasmodeus Ameghino, 1902
Proastrapotherium Ameghino, 1895
Probarbouromeryx Frick, 1937
Probos Hodgson, 1850
Proboscidea Illiger, 1811
Procaenopus Figgins, 1935
Procapromys Chapman, 1901
Procardia Ameghino, 1891
Procarnassium Haeckel, 1895
Procercopithecus Dubois, 1895
Procerorhinus Kretzoi, 1942
Procervus Aleksejev, 1915
Prochaerus Jack & Etheridge, 1892
Prochalicotherium Ameghino, 1902
Prochoerus Vis, 1887
Procoileus Frick, 1937
Procoryphodon Flerow, 1957
Procynictis Lemoine, 1885
Prodasypus Ameghino, 1894
Prodidelphys Ameghino, 1891
Prodinoceratidae Flerov, 1952
Prodinotherium Ehik, 1930
Progaleopithecus Ameghino, 1904
Prohyaena Schlosser, 1887
Prohydrochoerus Spillmann, 1941
Prohyracotherium Ameghino, 1902
Prolagopsis Major, 1899
Prolatidens Sudre & Russell, 1982
Prolepus Heude, 1898
Prolestodon Kraglievich, 1932
Promarsupium Haeckel, 1895
Promesoreodon Schultz & Falkenbach, 1949
Promysops Ameghino, 1902
Pronesodon Ameghino, 1895
Pronotochoerus Leakey, 1943
Proochotona Khomenko, 1916
Propareutatus Trouessart, 1905
Prophalangista Haeckel, 1895
Proplanodus Ameghino, 1902
Proplesictis Filhol, 1882
Propolymastodon Ameghino, 1903
Prorhyzaena Rütimeyer, 1891
Proscalopidae
Prosimia Brisson, 1762
Prosinopa Trouessart, 1897
Prostegodon Matsumoto, 1923
Prostheclon Patterson & West, 1973
Prostylops Ameghino, 1897
Prosyotherium Heude, 1890
Protaceratherium Abel, 1910
Protalpa Filhol, 1877
Protamphimachairodus Kretzoi, 1929
Protanthropus Haeckel, 1895
Protauchenia Branco, 1883
Protechidna Haeckel, 1895
Protechynus Filhol, 1891
Protelicomys Kraglievich, 1931
Protelotherium Osborn, 1895
Proteodidelphys Ameghino, 1898
Proterocetus Ameghino, 1899
Proterotheriidae Ameghino, 1887
Protetraceros Schlosser, 1903
Prothomo Ameghino, 1884
Prothylobates Ameghino, 1884
Protictops Petersen, 1934
Protobarbouromeryx Frick, 1937
Protocheirus Gervais, 1855
Protochoerus Leconte, 1848
Protochriacus Scott, 1892
Protogaulus Riggs, 1899
Protogenia Trouessart, 1893
Protogonia Cope, 1881
Protoindris Lorenz, 1900
Protolagos Heude, 1898
Protolambda Osborn, 1898
Protolipternidae
Protoproviverra Lemoine, 1891
Protosimia Ameghino, 1884
Protosirena Haeckel, 1895
Protosorex Scott, 1895
Prototalpa Trouessart, 1879
Prototapirus Pohlig, 1888
Prototrigodon Kraglievich, 1930
Protoxodon Ameghino, 1887
Protroglodytes Ameghino, 1884
Prouintatherium Dorr, 1958
Pseudadiantus Ameghino, 1901
Pseudelephant Falconer & Cautley, 1846
Pseuderemotherium Couto, 1954
Pseudhippus Ameghino, 1902
Pseudocardiomys Kraglievich, 1932
Pseudochrysochloris Turnbull & Reed, 1967
Pseudocoelosoma Ameghino, 1891
Pseudolestodon Gervais & Ameghino, 1880
Pseudomacrauchenia Kraglievich, 1930
Pseudomeles Gray, 1855
Pseudomesoreodon Schultz & Falkenbach, 1950
Pseudoneoreomys Ameghino, 1891
Pseudoneurogymnurus Gureev, 1979
Pseudopithecus Roth, 1901
Pseudopromerycochoerus Schultz & Falkenbach, 1949
Pseudorhyncocyonidae Sigé, 1974
Pseudorophodon Hoffstetter, 1954
Pseudosciuromys Stehlin & Schaub, 1951
Pseudotoxodon Moreno, 1889
Pseudotsaganomys Vinogradov & Gambaryan, 1952
Pternoconius Cifelli & Soria, 1983
Pterodicticus Wagner, 1839
Pterotix Rafinesque, 1815
Ptheromys
Ptilodontidae Cope, 1887
Ptiloturus Fischer, 1813
Ptolemaiidae Osborn, 1908
Pucanodus de Muizon & Marshall, 1991
Puelia Roth, 1901
Puercolestes Reynolds, 1936
Punadolops Goin, Candela & Lopez, 1998
Puntanotherium Bordas, 1941
Putoriodus Gervais, 1850
Pyrofelis Gray, 1874
Pyrotheriidae Ameghino, 1889
Qatranitherium Crochet, Thomas, Sen, Roger, Gheerbrant & Al-Sulaimani, 1992
Quadriodon Trouessart, 1898
Quatriodon Ameghino, 1881
Quercysorex Engesser, 1975
Quercytherium Filhol, 1880
Quettacyon Gingerich, Abbas & Arif, 1997
Quirogalestes Goin & Candela, 1998
Qurliquoria Bohlin, 1937
Rabaticerus Ennouchi, 1953
Rabdiodon Ameghino, 1889
Radinotherium Ameghino, 1887
Ragnarok van Valen, 1978
Rankelia Roth, 1901
Ratton Brants, 1827
Ravenictis Fox & Youzwyshyn, 1994
Reigitheriidae
Reithrosciurus Gray, 1867
Renatodon Hahn, 2001
Repenomamidae Li et al., 2000
Requisia Bonaparte & Morales, 1997
Revilliodia Simpson, 1945
Rhabdiodon Ameghino, 1889
Rhabdodon Ameghino, 1891
Rhadinotherium Ameghino, 1887
Rhagodon Mercerat, 1891
Rhamphocetus Gloger, 1841
Rhinalazon Gloger, 1841
Rhinchonycteris Tschudi, 1844
Rhinippus Burmeister, 1875
Rhinoceroides Featherstonhaugh, 1831
Rhinodorcas Boetticher, 1953
Rhinostictus Trouessart, 1897
Rhinostodes Du Bus, 1868
Rhinozolis Gloger, 1841
Rhizoprion Jourdan, 1861
Rhizosthenurus Kear, 2002
Rhomboraylus Zhai, 1978
Rhyzoena
Ricardowenia Ameghino, 1901
Riostegotherium Oliveira & Bergvist, 1998
Risia Laurillard, 1841
Rodentia Bowdich, 1821
Rodiotherium Ameghino, 1895
Rougietherium Bonaparte, 2002
Rubitherium Crusafont, Villalta & Truyols, 1955
Rutimeyeria Ameghino, 1901
Ruttus Fischer-Waldheim, 1803
Saceomys
Sacomys Cuvier, 1829
Sadypus Ameghino, 1902
Sahnitherium Rana & Wilson, 2003
Saju Berthold, 1827
Sajus Rafinesque, 1815
Salladolodus Soria & Hoffstetter, 1983
Samiris Blyth, 1840
Sarcothraustes Cope, 1882
Sarigua Muirhead, 1819
Saturnina Stehlin, 1940
Sazlestes Nessov, 1997
Scabellia Ameghino, 1901
Scalabrinia Lydekker, 1894
Scalabrinitherium Ameghino, 1883
Scandentia Wagner, 1855
Scaphoceros Osgood, 1905
Scaphops Ameghino, 1895
Scaptohyas Sinclair, 1922
Sceparnodon Ramsay, 1881
Schistopleurum Nodot, 1855
Scirrotherium Edmund & Theodor, 1997
Sclerocalyptidae Ameghino, 1904
Scopotherium Ameghino, 1887
Scotaeops Ameghino, 1887
Scotaeumys Ameghino, 1887
Scoteops Ameghino, 1894
Selatherium Ameghino, 1894
Selenoconus Ameghino, 1901
Selopoda Rafinesque, 1814
Semicuon Kretzoi, 1941
Senetia Kraglievich, 1927
Serengeticeros Dietrich, 1942
Setebos Roth, 1901
Seudolestodon Ameghino, 1881
Shalbaatar Nessov, 1997
Shecenia Simpson, 1935
Shuotheriidae Chow & Rich, 1982
Siamiris Dahlbom, 1857
Sibyllotherium Scillato-Yane & Carlini, 1998
Sideroderma Peters, 1871
Siderotherium Jaeger, 1839
Sigmogomphius Merriam, 1896
Silvabestius Black & Archer, 1997
Silvaroo Dawson, 2004
Simobison Hay & Cook, 1930
Simoclaenus de Muizon & Cifelli, 2000
Simplodon Huang & Zheng, 2003
Simthurus Gray, 1825
Sinaetherus Burnett, 1829
Sinatherus Brookes, 1828
Sinbadelphys Cifelli, 2004
Sinetheres Cuvier, 1823
Sinictitherium Kretzoi, 1938
Sinicuon Kretzoi, 1941
Sinobaatar Hu & Wang, 2002
Sinoconodontidae
Sinoetherus Cuvier, 1824
Sinomegaceroides Shikama, 1949
Sinomylus McKenna & Meng, 2001
Sinoperadectes Storch & Qiu, 2002
Sinorhinus Kretzoi, 1942
Sinotherium Ringstrom, 1923
Sinuconodon Patterson & Olson, 1961
Sirapithecus Pilgrim, 1910
Siren Hermann, 1783
Sirenia Illiger, 1811
Sivacyon Pilgrim, 1932
Sivakia Osborn, 1925
Sivalarctos Blainville, 1841
Sivameles Falconer, 1868
Sivamellivora Kretzoi, 1942
Sivameryx Lydekker, 1878
Sivapterodon Ginsburg, 1980
Sivataxus Falconer, 1868
Sloanbaataridae Kielan-Jaworowska, 1974
Smilocamptus Gervais, 1849
Smilocomptus Gervais, 1849
Smilodontopsis Brown, 1908
Soricictis Pomel, ?, 1848-52
Soricolestes Lopatin, 2002
Soricomorpha Gregory, 1910
Sorictis Zittel, 1893
Spalacodon Charlesworth, 1844
Spalacotheriidae Marsh, 1887
Spalacotherioides Patterson, 1955
Spaniotherium Filhol, 1882
Spanoxydon Simpson, 1935
Sparactolambda Patterson, 1939
Sparnotheriodontidae Soria, 1980
Spelaearctus Gloger, 1841
Spelaeus Brookes, 1828
Spelearctos Geoffroy, 1833
Spelearctus Geoffroy, 1835
Spenodor Lund, 1839
Spermolegus David, 1875
Spermosciurus Lesson, 1836
Speromsciurus Lesson, 1842
Sphaeramys Ameghino, 1887
Sphaerochlamydes Gray, 1865
Sphaeromys Ameghino, 1889
Sphenodon Lund, 1839
Sphenodontherium Trouessart, 1905
Sphiggomys Ameghino, 1887
Sphoenodon Lesson, 1842
Staurodon Roth, 1899
Stegeloxodon Kretzoi, 1950
Stehlinius Matthew, 1921
Stenacodon Marsh, 1872
Steneodon Croizet, 1833
Steneotherium Geoffroy, 1833
Steneotherum Trouessart, 1881
Stenodermis Bowdich, 1821
Stenogenium Ameghino, 1895
Stenopterus Dobson, 1871
Stenostylops Huang, Zheng & Ding, 2001
Stephanodon Meyer, 1847
Stereoceros Duvernoy, 1853
Stereocyon Mercerat, 1917
Stereodectes Cope, 1869
Stereohippus Ameghino, 1904
Sternoderma Elliot, 1904
Steropodontidae
Sterops Anon., 1845
Sterrohippus van Hoepen, 1930
Stilauchenia Ameghino, 1889
Stilodon Ameghino, 1889
Strongyloceros Owen, 1846
Stylinodontidae Marsh, 1875
Stylodon Owen, 1866
Stylognathus Ameghino, 1891
Stylonus Cope, 1878
Stypolophus Cope, 1872
Subcosoryx Frick, 1937
Submerycochoerus Schultz & Falkenbach, 1950
Subparacosoryx Frick, 1937
Subunicuspidens Lemoine, 1887
Subursus Blainville, 1837
Suckoteiro Illiger, 1815
Sucotyro Kerr, 1792
Sudamericidae Scillato-Yané & Pascual, 1984
Sukoteiro Illiger, 1815
Sukotyro Kerr, 1792
Sulcicephalus Deraniyagala, 1954
Suleimania van den Hoek Ostende, 2001
Superdesmatochoerus Schultz & Falkenbach, 1954
Syarctus Gloger, 1841
Sycium Cope, 1899
Symetrodontomys Hibbard, 1941
Synaetheres Gervais, 1859
Synaetherus Bonaparte, 1831
Synagodus Cope, 1879
Synaptochoerus van Hoepen, 1932
Synconodon Osborn, 1898
Syncryptus Illiger, 1815
Syndactylus Boitard, 1841
Synethera Doughty, 1831
Synethere Cuvier, 1827
Synexallerix Lopatin & Zazhigin, 2003
Synodontherium Costa, 1850
Synodontomys Allen, 1917
Synoether Berthold, 1827
Synoetheres Lund, 1839
Synostodon Broeck & Miller, 1878
Syvameryx Zittel, 1893
Szechuanopithecus Young & Liu, 1951
Tachytypotherium Roth, 1903
Taeniolabidae
Taeniolabididae Granger & Simpson, 1929
Taguanus Rafinesque, 1815
Talpavoides Bown & Schankler, 1982
Talpha Say, 1823
Tamblamastodon Roger, 1887
Tanupolama Stock, 1928
Tanyorhinus Cook, 1927
Taphagous Bonaparte, 1831
Taphosous Hardwicke, 1825
Taphozus Burnett, 1829
Tapinochoerus van Hoepen, 1932
Tapinodon Meyer, 1846
Tapinotherium Mercerat, 1891
Tapiralum Rusconi, 1934
Tapirodon Meyer, 1847
Tapiroporcus Jaeger, 1835
Tapiroporeus Jaeger, 1839
Tashkumyrodon Martin & Averianov, 2004
Taslestes Nesov, 1982
Tatabelodon Frick, 1933
Tatou Anonymous, 1845
Taubatherium Soria & de Alvarenga, 1989
Tegotheriidae Tatarinov, 1994
Tehuelia Roth, 1901
Teleobunomastodon Revilliod, 1931
Teleopternus Cope, 1899
Telmalestes Marsh, 1872
Telmatocyon Marsh, 1899
Telmatolestes Marsh, 1872
Telosmilus Kretzoi, 1929
Tembotherium Moreno, 1882
Tendagurodon Heinrich, 1998
Tendagurutherium Heinrich, 1998
Tendrac Blainville, 1838
Tendracus Rafinesque, 1815
Tenomys Rafinesque, 1815
Tenotis Rafinesque, 1817
Tenotus Rafinesque, 1815
Tetracaulodon Godman, 1829
Tetracheros Lesson, 1842
Tetraselenodon Schlosser, 1886
Tetrastylopsis Kraglievich, 1931
Tetrodon Ameghino, 1882
Teutobochus Blainville, 1835
Thaiagymnura Mein & Ginsburg, 1997
Thalaceros Reck, 1935
Thangorodrim van Valen, 1978
Thaphozous Oken, 1816
Thaphozus Fleming, 1822
Thaumastolemur Filhol, 1895
Thaumatherium Gloger, 1841
Theratiskos van den Hoek Ostende, 2001
Theridosorex Gervais, 1859
Theroteinidae Sigogneau-Russell et al., 1986
Thinolestes Marsh, 1872
Thlaeodon Cope, 1892
Thoatheriopsis Soria, 2001
Thoracotherion Gray, 1869
Thoracotherium Mercerat, 1891
Thous Smith, 1839
Thylacodon Matthew & Granger, 1921
Thylacomorphus Gervais, 1876
Thylacopardus Owen, 1888
Thyopterus Gray, 1825
Tichorhinus Brandt, 1849
Tidaeus Ameghino, 1893
Tideus Ameghino, 1890
Tillotheriidae
Tinoceras Marsh, 1872
Tinodontidae Marsh, 1887
Titanoideidae Patterson, 1934
Titanops Marsh, 1887
Tomictis Hall, 1931
Tomiopsis Cope, 1893
Tomitherium Cope, 1872
Tomocyon Viret, 1929
Tomolabis Cope, 1892
Toscanius Kretzoi, 1929
Toxodontherium Ameghino, 1883
Toxodontidae Owen, 1845
Toxodontophanus Moreno, 1882
Toxotemnus Ameghino, 1904
Trachicalyptus Ameghino, 1908
Trachypleurotherium Dilg, 1909
Tragocamelus Fischoeder, 1902
Tragulohyius Filhol, 1876
Tragulotherium Pictet, 1853
Tranyocastor Rusconi, 1936
Traspoatherium Ameghino, 1895
Tremarctotherium Kraglievich, 1926
Triacanthodon Owen, 1871
Tribactonodon Sigogneau-Russell, Hooker & Ensom, 2001
Tricium Cope, 1873
Tricomys Trouessart, 1904
Triconodontidae Marsh, 1887
Tricuspidens Lemoine, 1887
Triglochinopholis Fitzinger, 1872
Trigonolestes Cope, 1894
Trigonostylopidae Ameghino, 1901
Triisiodontidae
Trimenodon Gloger, 1841
Trimerodus Cope, 1873
Triodon Ameghino, 1875
Trionyx Oken, 1816
Triprothomo Ameghino, 1884
Triprotosimia Ameghino, 1884
Triprotroglodytes Ameghino, 1884
Trobelodon Frick, 1933
Troglodyta Linnaeus, 1760
Tropodon Rafinesque, 1832
Trouessartella Cossman, 1899
Trouessartia Cossman, 1899
Trucifelis Leidy, 1868
Tseiran Gray, 1821
Tshotgoria Lopatin, 1997
Tubulidentata Huxley, 1872
Tucanus Rafinesque, 1815
Tupaca Brookes, 1828
Tupaja Berthold, 1827
Turicius Osborn, 1926
Turkanatherium Deraniyagala, 1951
Typhlodon Falconer, 1868
Typotheriidae
Typotheriodon Cabrera, 1939
Uintacolotherium Cook, 1926
Uintamastix Leidy, 1872
Uintatheriidae Flower, 1876
Ulanthropos Haeckel, 1889
Unaiis Rafinesque, 1815
Unaus Gray, 1821
Unicolores Grevé, 1894
Unicornu Grateloup, 1835
Uniserium von Huene, 1934
Uphelognatos Filhol, 1888
Upmesdon Kaup & Scholl, 1835
Upmesodon Palmer, 1904
Uranokyrtus Ameghino, 1894
Urigna Rafinesque, 1815
Uruguaytherium Kraglievich, 1928
Venyukovia Amalitzky, 1922
Vesperomys Alston, 1880
Villarroelia Cifelli & Guerrero, 1997
Vincelestidae
Viscaccia Oken, 1816
Viscacia Rafinesque, 1815
Vitulinus Brisson, 1762
Vizcacia Schinz, ?, 1824
Volucre Palmer, 1904
Volverenna Jarocki, 1821
Vulpus Lampe, 1900
Wangliidae
Wanolestes Huang & Zheng, 2002
Wanostylops Huang & Zheng, 1997
Weyenberghia Kraglievich, 1927
Widanelfarasia Seiffert & Simons, 2000
Windhausenia Kraglievich, 1930
Woutersiidae
Wururoo Cooke, 1997
Wyolestes Gingerich, 1981
Xenalopex Kretzoi, 1954
Xenochoerus Zdarsky, 1909
Xenocyon Kretzoi, 1938
Xenodelphis Couto, 1962
Xenoglyptodon Meade, 1953
Xenohyaena Kretzoi, 1938
Xenorhinotherium Cartelle & Lessa, 1988
Xotoprodon Ameghino, 1891
Xylotherium Mercerat, 1891
Yak Anonymous, 1845
Yalkaparidontidae
Yarala Muirhead & Filan, 1995
Yerboa Zimmermann, 1777
Yingabalanaridae
Yuanqulestes Tong, 1997
Yuesthonyx Tong, Wang & Fu, 2003
Yumanius Stock, 1938
Zaedius Lydekker, 1894
Zaedypus Ameghino, 1889
Zaisanolophus Gabunia, 1998
Zalabis Cope, 1897
Zamicrus Ameghino, 1889
Zebu Anonymous, 1845
Zebus Blyth, 1860
Zetodon Cope, 1883
Zhangheotherium Hu, Wang, Luo & Li, 1997
Zhelestidae Nessov, 1990
Zhujegale Zhang Yuping & Tong Yongsheng, 1981
Zibetha Oken, 1816
Zooligus Aymard, 1853
- Mammalia Linnaeus, 1758