Annelida
Abarbaris Rafinesque, 1815
Acamarchis Rafinesque, 1815
Acanthostoma Fischer-Waldheim, 1813
Acastea Rafinesque, 1815
Aceronereis de Blainville, 1818
Acerrotrupa Yu & Wang, 1981
Acheloia Rafinesque, 1815
Achenusia Rafinesque, 1815
Achyroe Rafinesque, 1815
Actiphus Rafinesque, 1815
Aeolosomatidae Beddard, 1895
Aeolus Bergman, 1988
Agnodice McIntosh, 1885
Albertaprion Jansonius & Craig, 1974
Alienites Kozur, 1967
Alixythoe Rafinesque, 1815
Allyrosthius Rafinesque, 1815
Amatotus Guettard, 1770
Amphicorine Quatrefages, 1850
Amphinomida
Amphitea Rafinesque, 1815
Amphiteus Rafinesque, 1815
Ampithoe Rafinesque, 1815
Amymona Lamarck, 1818
Amymone Savigny, 1822
Anabarites Missarzhevsky, 1969
Anellidia Gregorio, 1930
Anhuiella
Anisocerasites Eller, 1955
Aonidus Rafinesque, 1815
Aphlebus Agassiz, 1846
Aponaitides McCammon & Montagne, 1979
Arachnostega Bertling, 1992
Archaeoprion Mierzejewski & Mierzejewska, 1975
Archaeoprionidae
Arenatubulites
Arenicolidae Johnston, 1835
Arenicolitidae
Arites Kozur, 1967
Armandiella McIntosh, 1915
Arthrariella Ruedemann, 1925
Artolon de Montfort, 1810
Arytena Schweigger, 1820
Asepis Rafinesque, 1815
Astarte de Blainville, 1828
Asterosalpinx Sokolov, 1948
Atraktoprion Kielan-Jaworowska, 1962
Atrocha Claparède & Metschnikov, 1869
Atromopsis Rafinesque, 1815
Austrorotularia Macellari, 1984
Axonobranchia Jones, 1985
Basogenys Jansonius & Craig, 1971
Bathylevensteina Pettibone, 1976
Belegenys Jansonius & Craig, 1971
Bipygmaeus Regenhardt, 1961
Bisalpis Rafinesque, 1815
Branchionereida Chenu, 1855
Branchionereis de Blainville, 1818
Branchiphus Rafinesque, 1815
Briaraca Busch, 1847
Briarea Herrmannsen, 1846
Briareus Quoy & Gaimard, 1826
Brochosogenys Colbath, 1987
Broeckia Carter, 1877
Bryarea Ball, 1850
Bundenbachochaeta Bartels & Blind, 1995
Bunode Schweigger, 1820
Burgessochaetidae
Caesicius Regenhardt, 1961
Campylites Eichwald, 1856
Canadiidae
Capitellidae Grube, 1862
Caprascolex
Carbosesostris Schram, 1979
Caulostrepsis
Cavernaecola Bentz, 1929
Cementula
Centrodus Pander, 1856
Cercomyzostoma Perrier, 1897
Chaetobranchus Verrill, 1873
Chaetosalpinx Sokolov, 1948
Chauvinella Laubier, 1975
Cheiridogenys Jansonius & Craig, 1971
Chlorema Quatrefages, 1846
Choetobranchus Webster, 1879
Christidia Tauber, 1879
Chrysodon Oken, 1815
Chymene Hansen, 1878
Cilixus Rafinesque, 1815
Cirrhoceros Quatrefages, 1865
Cirrholumbricus de Blainville, 1828
Cirrilumbricus Agassiz, 1846
Cirrobranchia Ehlers, 1866
Cirroceros Claparède, 1863
Cirrolumbricus Oken, 1818
Clavulites Girty, 1904
Climena McMurtrie, 1834
Climene Lamarck, 1838
Clistomastus Eisig, 1887
Cloeia Savigny, 1822
Cloudina Germs, 1972
Clymenida Schmarda, 1877
Codonostoma Agassiz, 1846
Codostoma Rafinesque, 1814
Colpogenys Jansonius & Craig, 1971
Concamerarius Regenhardt, 1961
Conora
Conorca Regenhardt, 1961
Cornaramia Smith of Kilwinning, 1907
Cornugenys Jansonius & Craig, 1971
Cornuramia Smith of Kilwinning, 1907
Cossuridae Day, 1963
Crateis Rafinesque, 1815
Crinincaminus
Crininicaminus Ettensohn, 1981
Crithidia
Croneisigenys Jansonius & Craig, 1971
Crymene
Ctenema Rafinesque, 1815
Ctenoscolex Ehlers, 1869
Cyanippa Lucas, 1840
Cyanippe Chenu, 1855-58
Cyclobostryx Agassiz, 1846
Cycloserpula
Cycnoserpula Regenhardt, 1961
Cyrenus Rafinesque, 1815
Dauphone Metschnikov, 1865
Delosites Kozur, 1967
Dentalditrypa Rovereto, 1904
Dercete Rafinesque, 1815
Diapatraites Eller, 1938
Dicoscina Zborzevski, 1834
Dicrocerus Rafinesque, 1814
Didontogaster Thompson, 1979
Didynemus Rafinesque, 1814
Dinophilidae
Dinoscolites Stauffer, 1933
Dinotus Guettard, 1770
Diodiphus Rafinesque, 1815
Diopatraites
Diopatrichnus Kern, 1978
Dipliphus Rafinesque, 1815
Diplochaetetes Weissermel, 1913
Diploconcha Conrad, 1875
Diplotoma Rafinesque, 1819
Diplotus McIntosh, 1915
Diproceraea Anon., 1865
Discouvermetulus
Ditrupula
Dorsibranchus Wagner, 1885
Doyera Malaquin, 1893
Doyeria Quatrefages, 1844
Drilidium Müller, 1858
Drilonereisites Eller, 1964
Drilonereistes
Ebetallites Zebera, 1935
Elleriprion
Enone Massalongo, 1855
Entalis Sowerby, 1839
Eopolychaetus Ruedemann, 1901
Eotomopteris Briggs & Clarkson, 1987
Eotrophonia Ulrich, 1878
Epitrachys Ehlers, 1869
Esepus Rafinesque, 1815
Ethmonaria Yu & Wang, 1981
Eubyale Rafinesque, 1815
Eulalides Czerniavsky, 1882
Eulalites Plicka, 1984
Eumolope Kaup, 1837
Eunicida
Euphrysa Rafinesque, 1815
Eupolynoë Bidenkap, 1895
Eurypilus Rafinesque, 1815
Euryprion Kielan-Jaworowska, 1966
Exarthria Rafinesque, 1815
Fabriciella Zenkevitsch, 1935
Falcula Conrad, 1870
Falkosites
Fastuoscolex Thompson, 1979
Filagrana Gervais & Beneden, 1859
Filigrana Oken, 1815
Fissurituba Chiplonkar & Tapaswi, 1973
Flabetheca Qian & Yin, 1985
Fletcheria Milne-Edwards & Haime, 1851
Fomitchella Missarzhevskii, 1969
Forbesia Goodsir, 1845
Fossundecima Thompson, 1979
Fossundecimidae
Genicularites Muller, 1970
Gitonia
Glandifera Regenhardt, 1961
Glycerites Hinde, 1879
Gnoma Latreille, 1820
Gotlandites Bergman, 1988
Granorbis Regenhardt, 1961
Grapsobranchus Wagner, 1885
Gwasitoa Chamberlin, 1919
Hadoprionidae
Haematorhoea Agassiz, 1850
Haileyia Ruedemann, 1934
Halosydnoides Seidler, 1924
Hammatopsis Hadding, 1919
Hamulosodina Cooper, 1931
Hamulus Regenhardt, 1961
Hedyle Malmgren, 1865
Helicotaphrichnus Kern, Grimmer & Lister, 1974
Hemicanalis Chiplonkar & Ghare, 1977
Hepteris Regenhardt, 1961
Herfriedia Holly, 1935
Hermandura Quatrefages, 1865
Hesionites
Heteroaricia Czerniavsky, 1881
Heteromyzostoma Perrier, 1897
Heterosabella Schmarda, 1871
Hicetes Clarke, 1908
Himalayaia Singh & Dhar Shukla, 1981
Hindenites Bergman, 1988
Hindeoprion Szaniawski & Wrona, 1973
Hirudopsis
Homaphrodite Gall & Grauvogel, 1967
Homaphrodites
Howellitubus Richardson, 1956
Huainanella Wang, 1983
Hyolithellus Billings, 1871
Hyolithes Eichwald, 1840
Hystriciola Thompson, 1979
Indocera Singh & Dhar Shukla, 1981
Infundibula McIntosh, 1922
Inisilicoryphidae
Insolicorypha Conway Morris, 1979
Insulicorypha
Iquitosia
Iubarenicala Alessandrello, Bracchi & Solis-Weiss, 2003
Iubarenicola Alessandrello, Bracchi & Riou, 2004
Jereminella Lugeon, 1919
Jonhstonia Quatrefages, 1866
Jospilopsis Augener, 1922
Kalaminochaeta
Kalloprion Kielan-Jaworowska, 1962
Kalloprionidae
Kalymmaria
Keiloritidae
Kenostrychus Sutton, Briggs, Siveter & Siveter, 2001
Kettnerites Zebera, 1935
Khemisina
Kielanaegenys Jansonius & Craig, 1971
Kielanoprion Szaniawski, 1968
Kielanoprionidae
Kinbergia Quatrefages, 1866
Klakesia Ruedemann, 1934
Koslowskisyrinx Mierzejewski, 1986
Kozlowskiprion Kielan-Jaworowska, 1966
Lacinituba Chiplonkar & Tapaswi, 1973
Laetmonectidae
Lalage Müller, 1858
Lanceolatites
Lanceolites Bergman, 1988
Langeites Kielan-Jaworowska, 1966
Laodice Guérin-Ménéville, 1844
Lapworthella Cobbold, 1921
Laqueoserpula Lommerzheim, 1979
Lecathylus
Leodamos Czerniavsky, 1881
Leodice Lamarck, 1818
Leodicea Valenciennes, 1833
Leodicidae
Leodicites Eller, 1940
Leodicoe Bory, 1831
Leogenys Jansonius & Craig, 1971
Leonice Anon., 1829
Lepidenteron Fritsch, 1878
Lepidia Savigny, 1822
Leptoprion Kielan-Jaworowska, 1966
Leptosiagon Trask, 1856
Lercaritubus Flügel, Senowbari-Daryan & di Stefano, 1990
Levisettius Thompson, 1979
Licoris Lamarck, 1838
Lobatocerebridae
Lobogenys Jansonius & Craig, 1971
Lockportia
Loophiocephalus Grube, 1877
Lophiocephalus Costa, 1862
Lophocephala Costa, 1841
Lophos Termier, Termier & de Lapparent, 1974
Loxochona Arwidsson, 1907
Lumbriconereites Ehlers, 1869
Lumbricopsis
Lumbrinereidae
Lunoprionella Eisenack, 1975
Lysaretides Kozur, 1971
Maeandropolydora Voigt, 1965
Magarikune Minato & Suyama, 1949
Maldanidae Malmgren, 1867
Maldanidopsis Plicka, 1979
Maldeotaia Singh & Dhar Shukla, 1981
Manotes Meshkova, 1984
Marleneites Eller, 1941
Marlenites
Marphysaites Eller, 1945
Martina Ziegler, 1984
Marywadea Glaessner, 1976
Mastopodion Rathke, 1843
Medenophthalmus Lo Bianco, 1903
Melanoraphia Arduini, Pinna & Teruzzi, 1982
Menogenys Jansonius & Craig, 1971
Meringosoma Ehlers, 1869
Mesoeulalia Czerniavsky, 1882
Metatrochophora Haecker, 1896
Microconchus Phillips in Murchison, 1839
Microdactylophora
Microtubus Flügel, 1964
Mikrosyllis Langerhans, 1879
Miralvinella Desbruyeres & Laubier, 1993
Mobyprion Jansonius & Craig, 1974
Mochtyella Kielan-Jaworowska, 1962
Mochtyellidae
Monocolea Costa, 1862
Monocraterion Torell, 1870
Monothrites Eisenack, 1968
Mulleriprion Kozur, 1967
Multiprion Szaniawski & Wrona, 1973
Muroserpula
Myoscolex Glaessner, 1979
Myriocyclum Grube, 1880
Myzostomida
Nautalvinella Desbruyeres & Laubier, 1993
Nawnites Roy, 1929
Neanthioides Rioja, 1918
Nectosoma Viguier, 1910
Nedania Rafinesque, 1815
Neonereis Holly, 1935
Nereiclava Gervais, 1846
Nereigenys Jansonius & Craig, 1971
Nereituba Grube, 1878
Nerillidae Levinsen, 1883
Nerinella Nardo, 1847
Norepea Baird, 1865
Nossis Kinberg, 1865
Nothrites Stauffer, 1933
Nyphloneris Hansen, 1878
Oblongiprion Myanil & Zaslavskaya, 1985
Ocreale Oken, 1815
Oenonites Hinde, 1879
Oliveirania
Omasaria Regenhardt, 1961
Onnioides Hurst & Hewitt, 1977
Onuphionella
Opheliidae Malmgren, 1867
Orbiniidae Hartman, 1942
Ornatoporta
Ornatorinea
Ornatovinea Lommerzheim, 1979
Orthoconorca Jäger, 1983
Orthopelta Eisenack, 1939
Ostreoblabe Voigt, 1965
Otogenys Jansonius & Craig, 1971
Ottawella
Ottawina
Oxyprion Szaniawski, 1968
Palaeoaphrodite Alessandrello & Teruzzi, 1986
Palaeochaeta Clarke, 1903
Palaeodactylophora
Palaeopelyx
Palaeoriftia Orghidan, 1985
Palaeosaportia Borrello, 1967
Palaeoscolex Whittard, 1953
Palaeospirographis Plicka, 1962
Paleoaprhrodite
Paleoenonites Eller, 1942
Paleonereites Stauffer, 1933
Paleononites
Paleorhynchus Wang, 1983
Paleosigma Eisenack, 1939
Paliurus Gabb, 1877
Palmyrides Claparède, 1864
Palolo Hartman, 1938
Palurites Kozur, 1967
Paraaricia Czerniavsky, 1881
Paracarobia Czerniavsky, 1882
Paracirrineris Czerniavsky, 1881
Paradrilonereigenys Charletta & Boyer, 1974
Paraglycerites Eisenack, 1939
Paragnathites Jan du Chêne & Gorin, 1974
Paralanica Caullery, 1944
Paraonidae Cerruti, 1909
Parapatraites Eisenack, 1981
Pararamphoprion Myannil & Zaslavskaya, 1985
Pararenicola Wang, 1983
Parasabellidites
Parascione Caullery, 1944
Parascoloplos Czerniavsky, 1881
Parasitosyllis Potts, 1912
Parergodrilidae Reisinger, 1925
Parhetermastus Monro, 1937
Pariospilus Viguier, 1911
Parricidula Regenhardt, 1961
Parsimonia Regenhardt, 1961
Pasithea Oken, 1807
Paulinites Lange, 1947
Paulinitidae
Pedarites Eisenack, 1981
Pedasus Rafinesque, 1815
Pedivillus Rakosi, 1981
Pegasillus Dalyell, 1851
Pegeana Rafinesque, 1815
Pegmaticula Regenhardt, 1961
Penicilla Ellis, 1767
Pennaria Blainville, 1818
Pernerites Zebera, 1935
Peronochaeta Conway Morris, 1979
Peronochaetidae
Petrecea Blake, 1990
Philippiprotula Uchida, 1978
Phiops Schram, 1979
Phragmochaetidae
Phragmosalpinx
Phyllochoelopterus Claparède, 1865
Phyllodocida
Phyllohartmannia Pettibone, 1961
Phyllotethys La Greca, 1949
Pieckonia Thompson, 1979
Pisinoe Rafinesque, 1815
Pistoprion Kielan-Jaworowska, 1966
Pleigophthalmus Agassiz, 1848
Poliodontes Lucas, 1840
Polithalus Rafinesque, 1815
Pollagenys Jansonius & Craig, 1971
Pollicera Gosse, 1855
Polybostricus Quatrefages, 1865
Polybostrychus Agassiz, 1846
Polychaetaspidae
Polychaetura
Polychaeturidae
Polydonte Griffith, 1833
Polygordiidae Czerniavsky, 1881
Polykladichnus Fürsich, 1981
Polylepis Grube, 1878
Polymyzostoma Perrier, 1897
Polynaineris Pettibone, 1957
Polyodante Westwood, 1840
Polyodonta Burmeister, 1837
Polyodonte Cuvier, 1830
Polyodonthes Chiaje, 1841
Polyodontus Eysenhardt, 1818
Pontobdellopsis Ruedemann, 1901
Porrhogenys Jansonius & Craig, 1971
Porroa Quatrefages, 1866
Potamodrilidae Bunke, 1967
Potterigenys Jansonius & Craig, 1971
Praeglycera
Praelumbrinereis Kozur, 1972
Praerotularia Lommerzheim, 1979
Priarea Chamberlin, 1919
Probosciplectanos Cuvier, 1830
Processoprion Szaniawski & Wrona, 1973
Prokopitraea Snajdar, 1983
Proliserpulua Regenhardt, 1961
Prolopadorhynchus Bergström, 1915
Promaldane Mesnil, 1897
Pronereites Stauffer, 1933
Propolynoe
Prospio Mesnil, 1896
Prospirorbis Caullery & Mesnil, 1897
Protannelis Lam, 1920
Proterebella
Proterula
Protoarenicola Wang, 1983
Protocarobia Czerniavsky, 1882
Protodrilidae Czerniavsky, 1881
Protodriloididae Purschke & Jouin, 1988
Protolycoris Hatschek, 1893
Protonympha Clarke, 1903
Protoplacostegus Bush, 1904
Protrochophora Haecker, 1896
Protulites
Psamatotus Guettard, 1770
Psammatolus Chamberlin, 1919
Psammodrilidae Swedmark, 1952
Psammosiphon Vine, 1882
Psamniosyllis Westheide, 1990
Pseudoarenicola Liu & Huang, 1991
Pseudoethmonaria Li & Jiang, 1987
Pseudopolydorites Glazek, Marcinowski & Wierzbowski, 1971
Pseudorthotheca Cobbold, 1935
Pterogenys Courtinat, 1998
Pteropelta
Pterothrix Chamberlin, 1919
Pterspelta Eisenack, 1939
Pygocirrus Vinther, Eibye-Jacobsen & Harper, 2011
Questidae Hartman, 1966
Rakvereprion Mierzejewski, 1978
Ramesses Schram, 1979
Ramosulcichnus Hillmer & Schulz, 1973
Ramphoprionidae
Raphidiophorus Thompson, 1979
Reibischia Bergström, 1915
Rhamphegenys Jansonius & Craig, 1971
Rhytiprion Kielan-Jaworowska, 1966
Rhytiprionidae
Rinotectus Modeer, 1793
Rodens Renier, 1804
Rosacella Blainville, 1816
Rotulispira Chiplonkar & Tapaswi, 1973
Ruedemannella Howell, 1959
Rushtonia Cobbold & Pocock, 1934
Rutellifrons Thompson, 1979
Sabbellides Grube, 1850
Sabelides Grube, 1878
Sabellastartites Dudich, 1962
Sabellida
Sabellide Milne-Edwards, 1838
Sabellidites Yanichevsky, 1926
Saccocirridae Czerniavsky, 1881
Sacculina Blainville, 1837
Samythopis McIntosh, 1885
Sanbongicola Hatai & Masuda, 1973
Saphobranchia Chamberlin, 1919
Sarcionata
Scalibregmatidae Malmgren, 1867
Schizoproboscina Jakvlev, 1939
Sciotoprion Boyer, 1975
Scoleciellus Liu, 1986
Scolecoderma Salter, 1855
Senarius Regenhardt, 1961
Septenaria Regenhardt, 1961
Serpentula
Serpularia Münster, 1840
Serpulites Murchison, 1839
Serratula Szaniawski & Wrona, 1973
Siboglindae
Siluropelta Eisenack, 1939
Simplotubus Singh & Dhar Shukla, 1981
Sinotubulites Chen, Chen & Qian, 1981
Sinugenys Courtinat, 1998
Sinuocornu Howell, 1959
Siphonemus Rafinesque, 1815
Siphonostomites Rovereto, 1903
Skalenoprion Kielan-Jaworowska, 1962
Skalenoprionidae
Soris Schram, 1979
Spinocera Singh & Dhar Shukla, 1981
Spintheridae Johnston, 1865
Spionea Rafinesque, 1815
Spionida
Spiophanella Fauchald & Hancock, 1981
Spiracavites Chiplonkar & Ghare, 1977
Spirillium Zittel, 1880
Spirillum Oken, 1807
Spirilum Rafinesque, 1815
Spirinea Rafinesque, 1815
Spirocavites
Spirographites Astre, 1937
Spriggina Glaessner, 1958
Squammolubricus Bosc, 1819
Squamolumbricus Oken, 1818
Staurinereis Verrill, 1900
Staurocephalites Hinde, 1879
Stauronereisites Eller, 1955
Stephanoscolex
Stephenoscolecidae
Stephenoscolex Conway Morris, 1979
Sthenelaites Rovereto, 1903
Stoma Hadding, 1919
Streptindytes
Symmetroprion Kielan-Jaworowska, 1966
Symmetroprionidae
Synclinophora Eisenack, 1975
Syphonostoma Anon., 1820
Taugourdella Kozur, 1972
Tectorotularia Regenhardt, 1961
Teleonereis Verrill, 1900
Telephassa Rafinesque, 1815
Telotrocha Claparède & Metschnikow, 1869
Terebellida
Terebellina Ulrich, 1904
Terebellites
Terebellolites
Terebellum Montfort, 1810
Tetraditrupa Regenhardt, 1961
Tetraprion Kielan-Jaworowska, 1966
Tetraprionidae
Thalenessites Stauffer, 1933
Themisto Oken, 1807
Theostoma Eisig, 1914
Tibikoia
Titahia Webby, 1958
Torellella Holm, 1893
Torlessia Bather, 1905
Tosalorbis Katto, 1960
Tremastomastus Chamberlin, 1919
Tremomastus Eisig, 1887
Triadonereis
Trianguligenys Szaniawski & Wrona, 1973
Trophonius Westwood, 1840
Trypanedenta Imajima & Hartman, 1964
Trypanobia Imajima & Hartman, 1964
Trypanoseta Imajima & Hartman, 1964
Tubercularia Blainville, 1827
Tubicotomaculum Chiplonkar & Ghare, 1977
Tubilumbricus Agassiz, 1843
Tubularia Fabricius, 1780
Tubulella Howell, 1949
Tubulelloides Howell, 1949
Tubulus Martini, 1769
Turbinia Michelin, 1845
Tymbochoos Steele-Petrovich & Bolton, 1998
Typhlodrilus Baldasseroni, 1909
Uncinocheta Quatrefages, 1865
Uncinogenys Szaniawski & Wrona, 1973
Ungulites Stauffer, 1933
Uronemus Rafinesque, 1815
Venadis Lucas, 1840
Ventilabrum Blainville, 1818
Vermicularius Montfort, 1810
Vermicularus Montfort, 1810
Vermiforafacta Cameron, 1969
Vetustovermis Glaessner, 1979
Vistulella Kielan-Jaworowska, 1962
Volborthella Schmidt, 1888
Vulva Olafsen, 1772
Wiwaxia Walcott, 1911
Xanioprion Kielan-Jaworowska, 1962
Xanthoprion Kielan-Jaworowska, 1966
Xianioprionidae
Yndolaciella Buzhinskaja, 2004
Yokoia Hatai & Noda, 1975