Between brackets is the number of accepted species
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Subphylum Cephalochordata
- Subphylum Tunicata accepted as Urochordata
- Subphylum Urochordata
- Subphylum Vertebrata
- Superclass Tetrapoda
- Class Acanthodii †
- Class Actinopterygii
- Order Acanthomorpha
- Order Acipenseriformes
- Order Actinopterygii (awaiting allocation)
- Order Actinopterygii incertae sedis
- Order Aeduelliformes †
- Order Albuliformes
- Order Alepisauriformes
- Order Amiiformes
- Order Anguilliformes
- Order Ankylophoriformes †
- Order Argentiniformes
- Order Asarotiformes †
- Order Ascalaboidiformes †
- Order Aspidorhynchiformes †
- Order Ateleopodiformes
- Order Atheriniformes
- Order Aulopiformes
- Order Batrachoidiformes
- Order Beloniformes
- Order Beryciformes
- Order Bobasatraniformes † accepted as Bobasatraniiformes †
- Order Bobasatraniiformes †
- Order Catervarioliformes †
- Order Cephaloxeniformes †
- Order Cetomimiformes
- Order Characiformes
- Order Cheirolepiformes †
- Order Clupeiformes
- Order Clupeocephala incertae sedis
- Order Clupeomorpha incertae sedis
- Order Crossognathiformes †
- Order Ctenothrissiformes †
- Order Cypriniformes
- Order Cyprinodontiformes
- Order Dactylopteriformes accepted as Syngnathiformes
- Order Dapediiformes †
- Order Discordichthyiformes †
- Order Dorsetichthyiformes †
- Order Dorypteriformes †
- Order Ellimmichthyiformes †
- Order Elonichthyiformes †
- Order Elopiformes
- Order Esociformes
- Order Eurynotoidiformes †
- Order Euteleostei incertae sedis
- Order Gadiformes
- Order Gasterosteiformes
- Order Gobiesociformes
- Order Gobiiformes
- Order Gonorhynchiformes accepted as Gonorynchiformes
- Order Gonorynchiformes
- Order Guildayichthyiformes †
- Order Gymnotiformes
- Order Halecomorphi incertae sedis
- Order Haplolepidiformes †
- Order Holocentriformes
- Order Ichthyodectiformes †
- Order Ionoscopiformes †
- Order Kyphosichthyiformes †
- Order Lampriformes
- Order Lepisosteiformes
- Order Leptolepidiformes †
- Order Lophiiformes
- Order Louwoichthyiformes †
- Order Luganoiiformes †
- Order Lycopteriformes †
- Order Macrosemiiformes †
- Order Megalopiformes accepted as Elopiformes
- Order Mormyriformes accepted as Osteoglossiformes
- Order Myctophiformes
- Order Neopterygii incertae sedis
- Order Notacanthiformes
- Order Ophidiiformes
- Order Ophiopsiformes †
- Order Ophisthomi †
- Order Osmeriformes
- Order Osteoglossiformes
- Order Osteoglossomorpha incertae sedis
- Order Pachycormiformes †
- Order Palaeonisciformes †
- Order Palaeoniscimorpha incertae sedis
- Order Palaeoniscoidea † accepted as Palaeonisciformes †
- Order Paleonisciformes † accepted as Palaeonisciformes †
- Order Panxianichthyformes †
- Order Paphosisciformes †
- Order Parasemionotiformes †
- Order Pattersonichthyiformes †
- Order Peltopleuriformes †
- Order Perciformes
- Family Acanthoclinidae Gunther, 1861 accepted as Plesiopidae Gunther, 1861
- Family Acanthuridae Bonaparte, 1835
- Family Acropomatidae Gill, 1893
- Family Aenigmachannidae Britz, Dahanukar, Anoop, Philip, Clark, Raghavan & Ruber, 2020
- Family Amarsipidae Haedrich, 1969
- Family Ambassidae Klunzinger, 1870
- Family Ammodytidae Bonaparte, 1835
- Family Amphistiidae †
- Family Anabantidae Bonaparte, 1831
- Family Anarhichadidae Bonaparte, 1835
- Family Anarhichatidae accepted as Anarhichadidae Bonaparte, 1835
- Family Anisochromidae Smith, 1954 accepted as Pseudochromidae Müller & Troschel, 1849
- Family Aplodactylidae Gunther, 1859
- Family Apogonidae Gunther, 1859
- Family Ariommatidae Haedrich, 1967
- Family Arripidae Gill, 1893
- Family Artedidraconidae Andriashev, 1967
- Family Asianthidae Sytchevskaya & Prokofiev, 2003 †
- Family Badidae Barlow, Liem & Wickler, 1968
- Family Banjosidae Jordan & THompson, 1912
- Family Bathyclupeidae Gill, 1896
- Family Bathydraconidae Regan, 1913
- Family Bathymasteridae Jordan & Gilbert, 1883
- Family Belontiidae Liem, 1962 accepted as Osphronemidae van der Hoeven, 1832
- Family Blenniidae Rafinesque, 1810
- Family Blochiidae †
- Family Bovichthyidae accepted as Bovichtidae Gill, 1862
- Family Bovichtidae Gill, 1862
- Family Bramidae Bonaparte, 1831
- Family Branchiostegidae Jordan, 1923 accepted as Malacanthidae Poey, 1861
- Family Caesionidae Bonaparte, 1831
- Family Caesioscorpididae Parenti & Randall, 2020
- Family Callanthiidae Ogilby, 1899
- Family Callionymidae Bonaparte, 1831
- Family Caproidae Bonaparte, 1835
- Family Carangidae Rafinesque, 1815
- Family Caristiidae Gill & Smith, 1905
- Family Centracanthidae Gill, 1893
- Family Centrarchidae Bleeker, 1859
- Family Centrogeniidae Fowler, 1907 accepted as Centrogenyidae Fowler, 1907
- Family Centrogenyidae Fowler, 1907
- Family Centrolophidae Bonaparte, 1846
- Family Centropomidae Poey, 1867
- Family Cepolidae Rafinesque, 1815
- Family Chaenichthyidae Gill, 1861 accepted as Channichthyidae Gill, 1861
- Family Chaenopsidae Gill, 1865
- Family Chaetodontidae Rafinesque, 1815
- Family Champsodontidae Jordan & Snyder, 1902
- Family Chandidae Fowler, 1905 accepted as Ambassidae Klunzinger, 1870
- Family Channichthyidae Gill, 1861
- Family Channichtyidae accepted as Channichthyidae Gill, 1861
- Family Channidae Fowler, 1934
- Family Cheilodactylidae Bonaparte, 1850
- Family Cheimarrhichthyidae accepted as Cheimarrichthyidae Regan, 1913
- Family Cheimarrichthyidae Regan, 1913
- Family Chiasmodontidae Jordan & Gilbert, 1883
- Family Chironemidae Gill, 1862
- Family Cichlidae Bonaparte, 1835
- Family Cirrhitidae MacLeay, 1841
- Family Clinidae Swainson, 1839
- Family Coiidae Fowler, 1905 accepted as Anabantidae Bonaparte, 1831
- Family Congrogadidae Gunther, 1862 accepted as Pseudochromidae Müller & Troschel, 1849
- Family Coracinidae Fowler, 1933 accepted as Dichistiidae Smith, 1935
- Family Coryphaenidae Rafinesque, 1815
- Family Creediidae Waite, 1899
- Family Cryptacanthodidae Gill, 1861
- Family Dactyloscopidae Gill, 1859
- Family Datnioididae Fowler, 1931
- Family Dichistiidae Smith, 1935
- Family Dinolestidae Whitley, 1948
- Family Dinopercidae Heemstra & Hecht, 1986
- Family Draconettidae Jordan & Fowler, 1903
- Family Drepaneidae Gill, 1872
- Family Drepanidae Gill, 1872 accepted as Drepaneidae Gill, 1872
- Family Echeneidae Rafinesque, 1810
- Family Echeneididae accepted as Echeneidae Rafinesque, 1810
- Family Eleginopidae Gill, 1893 accepted as Eleginopsidae Gill, 1893
- Family Eleginopsidae Gill, 1893
- Family Eleotrididae Bonaparte, 1835 accepted as Eleotridae Bonaparte, 1835
- Family Embiotocidae Agassiz, 1853
- Family Emmelichthyidae Poey, 1867
- Family Enoplosidae Gill, 1893
- Family Eocottidae Bannikov, 2004 †
- Family Ephippidae Bleeker, 1859
- Family Ephippididae accepted as Ephippidae Bleeker, 1859
- Family Epigonidae Poey, 1861
- Family Euzaphlegidae †
- Family Formionidae McCulloch, 1929 accepted as Carangidae Rafinesque, 1815
- Family Gadopsidae Gunther, 1862 accepted as Percichthyidae Jordan & Eigenman, 1890
- Family Gempylidae Gill, 1862
- Family Gerreidae Bleeker, 1859
- Family Girellidae Gill, 1862 accepted as Kyphosidae Jordan, 1887
- Family Glaucosomatidae Jordan & Thompson, 1911
- Family Gobioididae Jordan & Eigenmann, 1887 accepted as Gobiidae Cuvier, 1816
- Family Grammatidae Jordan, 1887
- Family Grammistidae Bleeker, 1857 accepted as Serranidae Swainson, 1839
- Family Haemulidae Gill, 1885
- Family Hapalogenyidae Parenti, 2019
- Family Harpagiferidae Gill, 1861
- Family Helostomatidae Gill, 1872
- Family Hemilutjanidae Parenti & Randall, 2020
- Family Howellidae Ogilby, 1899
- Family Icosteidae Jordan & Gilbert, 1880
- Family Inermiidae Jordan, 1923 accepted as Haemulidae Gill, 1885
- Family Istiophoridae Rafinesque, 1815
- Family Kraemeriidae Whitley, 1935
- Family Kuhliidae Jordan & Evermann, 1896
- Family Kurtidae Bleeker, 1859
- Family Kyphosidae Jordan, 1887
- Family Labracoglossidae Regan, 1913 accepted as Kyphosidae Jordan, 1887
- Family Labridae Cuvier, 1816
- Family Labrisomidae Hubbs, 1952
- Family Lactariidae Boulenger, 1904
- Family Lateolabracidae Ghedotti, Davis & Smith, 2018
- Family Latidae Jordan, 1888
- Family Latridae Gill, 1862
- Family Latrididae Gill, 1862 accepted as Latridae Gill, 1862
- Family Leiognathidae Gill, 1893
- Family Leptobramidae Ogilby, 1913
- Family Leptoscopidae Gill, 1859
- Family Lethrinidae Bonaparte, 1831
- Family Limnichthyidae Regan, 1913 accepted as Creediidae Waite, 1899
- Family Lobotidae Gill, 1861
- Family Luciocephalidae Bleeker, 1852 accepted as Osphronemidae van der Hoeven, 1832
- Family Lutianidae accepted as Lutjanidae Gill, 1861
- Family Lutjanidae Gill, 1861
- Family Luvaridae Gill, 1885
- Family Malacanthidae Poey, 1861
- Family Massalongiidae Tyler & Bannikov, 2005 †
- Family Menidae Fitzinger, 1873
- Family Microdesmidae Regan, 1912
- Family Monodactylidae Jordan & Evermann, 1898
- Family Moronidae Jordan & Evermann, 1896
- Family Mugilidae Jarocki, 1822
- Family Mugiloididae Jordan, 1923 accepted as Pinguipedidae Gunther, 1860
- Family Mullidae Rafinesque, 1815
- Family Nandidae Bleeker, 1852
- Family Nardoichthyidae Sorbini & Bannikov, 1991 †
- Family Nematistiidae Gill, 1862
- Family Nemipteridae Regan, 1913
- Family Nomeidae Gunther, 1860
- Family Notograptidae Regan, 1912 accepted as Plesiopidae Gunther, 1861
- Family Nototheniidae Gunther, 1861
- Family Notothenioidei incertae sedis
- Family Odacidae Gunther, 1861
- Family Ophiclinidae Jordan, 1923 accepted as Clinidae Swainson, 1839
- Family Opisthognathidae accepted as Opistognathidae Bonaparte, 1835
- Family Opistognathidae Bonaparte, 1835
- Family Oplegnathidae Bleeker, 1853
- Family Osphronemidae van der Hoeven, 1832
- Family Ostracoberycidae Fowler, 1934
- Family Owstoniidae Jordan, Tanaka & Snyder, 1913 accepted as Cepolidae Rafinesque, 1815
- Family Palaeorhynchidae †
- Family Paleorhynchidae † accepted as Palaeorhynchidae †
- Family Parapercidae Bleeker, 1872 accepted as Pinguipedidae Gunther, 1860
- Family Parascorpididae Smith, 1949
- Family Pempheridae Bleeker, 1859
- Family Pempherididae accepted as Pempheridae Bleeker, 1859
- Family Pentacerotidae Bleeker, 1859
- Family Pentapodidae Fowler, 1933 accepted as Nemipteridae Regan, 1913
- Family Percichthyidae Jordan & Eigenman, 1890
- Family Percidae Rafinesque, 1815
- Family Perciformes (awaiting allocation)
- Family Perciliidae Jordan, 1923
- Family Percoidei incertae sedis
- Family Percophidae Swainson, 1839
- Family Percophididae Gill, 1885 accepted as Percophidae Swainson, 1839
- Family Peronedyidae Jordan, 1923 accepted as Clinidae Swainson, 1839
- Family Pholidae Gill, 1893
- Family Pholidichthyidae Jordan, 1896
- Family Pholidichtyidae accepted as Pholidichthyidae Jordan, 1896
- Family Pholididae Gill, 1893 accepted as Pholidae Gill, 1893
- Family Pinguipedidae Gunther, 1860
- Family Pirskeniidae Obrhelová, 1961 †
- Family Plesiopidae Gunther, 1861
- Family Polycentridae Gill, 1858
- Family Polynemidae Rafinesque, 1815
- Family Polyprionidae Bleeker, 1874
- Family Pomacanthidae Jordan & Evermann, 1898
- Family Pomacentridae Bonaparte, 1831
- Family Pomadasyidae Regan, 1913 accepted as Haemulidae Gill, 1885
- Family Pomatomidae Gill, 1863
- Family Priacanthidae Gunther, 1859
- Family Pristolepididae Regan, 1913
- Family Pseudaphritidae McCulloch, 1929
- Family Pseudochromidae Müller & Troschel, 1849
- Family Pseudogrammatidae Fowler, 1931 accepted as Serranidae Swainson, 1839
- Family Pseudoplesiopidae Bleeker, 1875 accepted as Pseudochromidae Müller & Troschel, 1849
- Family Ptereleotridae Bleeker, 1875 accepted as Microdesmidae Regan, 1912
- Family Ptilichthyidae Jordan & Gilbert, 1883
- Family Rachycentridae Gill, 1896
- Family Repropcidae Bannikov, 1991 †
- Family Rhinoprenidae Munro, 1964 accepted as Ephippidae Bleeker, 1859
- Family Robertanniidae Bannikov, 2011 †
- Family Salwaichthyidae Bannikov, 2020 †
- Family Scaridae Rafinesque, 1810
- Family Scatophagidae Gill, 1883
- Family Schindleriidae Giltay, 1934
- Family Sciaenidae Gill, 1861
- Family Scombridae Rafinesque, 1815
- Family Scombrolabracidae Fowler, 1925
- Family Scombropidae Gill, 1862
- Family Scorpididae Gunther, 1860 accepted as Kyphosidae Jordan, 1887
- Family Scytalinidae Jordan & Starks, 1895
- Family Serranidae Swainson, 1839
- Family Siganidae Richardson, 1837
- Family Sillaginidae Richardson, 1946
- Family Sparidae Rafinesque, 1818
- Family Sphyraenidae Rafinesque, 1815
- Family Stichaeidae Gill, 1864
- Family Stromateidae Rafinesque, 1810
- Family Symphysanodontidae Katayama, 1984
- Family Teraponidae accepted as Terapontidae Richardson, 1842
- Family Terapontidae Richardson, 1842
- Family Tetragonuridae Risso, 1827
- Family Theraponidae Richardson, 1842 accepted as Terapontidae Richardson, 1842
- Family Tortonesiidae Sorbini, Boscaini & Bannikov, 1991 †
- Family Toxotidae Bleeker, 1859
- Family Trachinidae Rafinesque, 1815
- Family Trachinoidei (awaiting allocation)
- Family Trichiuridae Rafinesque, 1810
- Family Trichiuroidei (awaiting allocation)
- Family Trichodontidae Bleeker, 1859
- Family Trichonotidae Gunther, 1861
- Family Tripterygiidae Whitley, 1931
- Family Trispinacidae Nazarkin, 2002 †
- Family Trypauchenidae Gunther, 1861 accepted as Gobiidae Cuvier, 1816
- Family Trypterigionidae Whitley, 1931 accepted as Tripterygiidae Whitley, 1931
- Family Uranoscopidae Bonaparte, 1831
- Family Xenisthmidae Miller, 1973
- Family Xenocephalidae Kaup, 1858 accepted as Uranoscopidae Bonaparte, 1831
- Family Xiphiidae Rafinesque, 1815
- Family Xiphiorhynchidae Regan, 1909 †
- Family Zanclidae Bleeker, 1876
- Family Zaproridae Jordan, 1896
- Family Zoarcidae Swainson, 1839
- Genus Aiakas Gosztonyi, 1977
- Genus Allolepis Jordan & Hubbs, 1925 accepted as Bothrocara Bean, 1890
- Genus Andriashevia Fedorov & Neyelov, 1978
- Genus Apodolycus Andriashev, 1979 accepted as Lycenchelys Gill, 1884
- Genus Aprodon Gilbert, 1890 accepted as Lycodes Reinhardt, 1831
- Genus Argentinolycus Matallanas & Corbella, 2012
- Genus Austrolycichthys Regan, 1913 accepted as Pachycara Zugmayer, 1911
- Genus Austrolycus Regan, 1913
- Genus Bandichthys Parin, 1979 accepted as Melanostigma Günther, 1881
- Genus Barbapellis Iglésias, Dettai & Ozouf-Costaz, 2012
- Genus Bellingshausenia Matallanas, 2009
- Genus Bentartia Matallanas, 2010
- Genus Bergeniana Popov, 1931 accepted as Lycodes Reinhardt, 1831
- Genus Bilabria Schmidt, 1936
- Genus Bothrocara Bean, 1890
- Genus Bothrocarichthys Schmidt, 1938 accepted as Bothrocarina Suvorov, 1935
- Genus Bothrocarina Suvorov, 1935
- Genus Bothrocaropsis Garman, 1899 accepted as Bothrocara Bean, 1890
- Genus Caneolepis Lahille, 1908 accepted as Iluocoetes Jenyns, 1842
- Genus Cepolophis Kaup, 1856 accepted as Gymnelus Reinhardt, 1834
- Genus Commandorella Taranetz & Andriashev, 1935 accepted as Gymnelus Reinhardt, 1834
- Genus Crossolycus Regan, 1913 accepted as Crossostomus Lahille, 1908
- Genus Crossostomus Lahille, 1908
- Genus Dadyanos Whitley, 1951
- Genus Davidijordania Popov, 1931
- Genus Davidojordania accepted as Davidijordania Popov, 1931
- Genus Derepodichthys Gilbert, 1896
- Genus Derjuginia Popov, 1931 accepted as Gymnelopsis Soldatov, 1922
- Genus Dieidolycus Anderson, 1988
- Genus Embryx Jordan & Evermann, 1898 accepted as Lycenchelys Gill, 1884
- Genus Encheliopus Richardson, 1843 accepted as Zoarces Cuvier, 1829
- Genus Enchelyopus Gronow, 1760 accepted as Zoarces Cuvier, 1829
- Genus Ericandersonia Shinohara & Sakurai, 2006
- Genus Eucryphycus Anderson, 1988
- Genus Exechodontes DeWitt, 1977
- Genus Furcella Jordan & Evermann, 1896 accepted as Lycodes Reinhardt, 1831
- Genus Furcimanus Jordan & Evermann, 1898 accepted as Lycodes Reinhardt, 1831
- Species Furcimanus diaptera (Gilbert, 1892) accepted as Lycodes diapterus Gilbert, 1892
- Species Furcimanus diapterus (Gilbert, 1892) accepted as Lycodes diapterus Gilbert, 1892
- Species Furcimanus nakamurae Tanaka, 1914 accepted as Lycodes nakamurae (Tanaka, 1914)
- Genus Gengea Katayama, 1943 accepted as Gymnelopsis Soldatov, 1922
- Genus Gosztonyia Matallanas, 2009
- Genus Gymnelichthys Fischer, 1885 accepted as Gymnelus Reinhardt, 1834
- Genus Gymnelis Reinhardt, 1838 accepted as Gymnelus Reinhardt, 1834
- Genus Gymnelopsis Soldatov, 1922
- Genus Gymnelus Reinhardt, 1834
- Genus Hadropareia Schmidt, 1904
- Genus Hadropogonichthys Fedorov, 1982
- Genus Haushia Lloris, 1988 accepted as Pogonolycus Norman, 1937
- Genus Illuocaetes Guichenot in Gay, 1849 accepted as Iluocoetes Jenyns, 1842
- Genus Ilucocoetes accepted as Iluocoetes Jenyns, 1842
- Genus Ilucoetes accepted as Iluocoetes Jenyns, 1842
- Genus Iluocaetes Guichenot in Gay, 1849 accepted as Iluocoetes Jenyns, 1842
- Genus Iluocoetes Jenyns, 1842
- Genus Ilyocoetes Agassiz, 1846 accepted as Iluocoetes Jenyns, 1842
- Genus Japonolycodes Shinohara, Sakurai & Machida, 2002
- Genus Krusensterniella Schmidt, 1904
- Genus Lacrimolycus Andriashev & Fedorov in Andriyashev & Fedorov, 1986 accepted as Ophthalmolycus Regan, 1913
- Genus Letholycus Anderson, 1988
- Genus Leucogrammolycus Mincarone & Anderson, 2008
- Genus Leurynnis Lockington, 1879 accepted as Lycodes Reinhardt, 1831
- Genus Lucodopsis Schmidt, 1950 accepted as Lycodes Reinhardt, 1831
- Genus Lucogramma Taranetz, 1937 accepted as Bothrocara Bean, 1890
- Genus Lycenchelys Gill, 1884
- Genus Lycias Jordan & Evermann, 1898 accepted as Lycodes Reinhardt, 1831
- Genus Lyciscus Jordan & Gilbert in Jordan, 1899 accepted as Lycenchelys Gill, 1884
- Genus Lycodalepis Bleeker, 1874 accepted as Lycodes Reinhardt, 1831
- Genus Lycodapus Gilbert, 1890
- Genus Lycodes Reinhardt, 1831
- Genus Lycodichthys Pappenheim, 1911
- Genus Lycodonus Goode & Bean, 1883
- Genus Lycodophis Vaillant, 1888 accepted as Lycenchelys Gill, 1884
- Genus Lycodopsis Collett, 1879 accepted as Lycodes Reinhardt, 1831
- Genus Lycogramma Gilbert, 1915 accepted as Bothrocara Bean, 1890
- Genus Lycogrammoides Soldatov & Lindberg, 1928
- Genus Lyconema Gilbert, 1896
- Genus Lycozoarces Popov, 1935
- Genus Lycrogramma Taranetz, 1937 accepted as Bothrocara Bean, 1890
- Genus Macrozoarces Gill, 1863 accepted as Zoarces Cuvier, 1829
- Genus Magadania Shinohara, Nazarkin & Chereshnev, 2004 accepted as Magadanichthys Shinohara, Nazarkin, Yabe & Chereshnev, 2006
- Genus Magadanichthys Shinohara, Nazarkin, Yabe & Chereshnev, 2006
- Genus Magnea Schmidt, 1950 accepted as Maynea Cunningham, 1871
- Genus Maynea Cunningham, 1871
- Genus Melanostigma Günther, 1881
- Genus Nalbantichthys Schultz, 1967
- Genus Nemalycodes Herzenstein, 1896 accepted as Gymnelus Reinhardt, 1834
- Genus Neocoarces Steindachner, 1880 accepted as Neozoarces Steindachner, 1880
- Genus Notolycodes Gosztonyi, 1977
- Genus Oidiphorus McAllister & Rees, 1964
- Genus Opaeophacus Bond & Stein, 1984
- Genus Ophthalmolicus accepted as Ophthalmolycus Regan, 1913
- Genus Ophthalmolycus Regan, 1913
- Genus Pachycara Zugmayer, 1911
- Genus Pachycarichthys Whitley, 1931 accepted as Pachycara Zugmayer, 1911
- Genus Paralycodes Bleeker, 1874 accepted as Iluocoetes Jenyns, 1842
- Genus Patagolycus Matallanas & Corbella, 2012
- Genus Petroschmidtia Taranetz & Andriashev, 1934 accepted as Lycodes Reinhardt, 1831
- Genus Phucocoetes Jenyns, 1842
- Genus Phucocoetus accepted as Phucocoetes Jenyns, 1842
- Genus Phycocoetes Agassiz, 1846 accepted as Phucocoetes Jenyns, 1842
- Genus Piedrabuenia Gosztonyi, 1977
- Genus Platea Steindachner, 1898 accepted as Dadyanos Whitley, 1951
- Genus Plesienchelys Anderson, 1988
- Genus Pogonolycus Norman, 1937
- Genus Puzanovia Fedorov, 1975
- Genus Pyrolycus Machida & Hashimoto, 2002
- Genus Rhigophila DeWitt, 1962 accepted as Lycodichthys Pappenheim, 1911
- Genus Santelmoa Matallanas, 2010
- Genus Seleniolycus Anderson, 1988
- Genus Taranetzella Andriashev, 1952
- Genus Thermarces Rosenblatt & Cohen, 1986
- Genus Zestichthys Jordan & Hubbs, 1925 accepted as Bothrocara Bean, 1890
- Genus Zoarcaeus Nilsson, 1832
- Genus Zoarces Cuvier & Valenciennes, 1836
- Genus Zoarces Cuvier, 1829
- Genus Zoarchus Swainson, 1839
- Genus Zoarcidarum †
- Genus Zoarcus Storer, 1839
- Genus Zoaries Reinhardt, 1831
- Family Zorzinichthyidae Tyler & Bannikov, 2002 †
- Genus Argestichthys Prokofiev, 2002 †
- Genus Cubariomma Bannikov, 2018 †
- Genus Epibatichthys Prokofiev, 2002 †
- Genus Gilmourella Carnevale & Bannikov, 2019 †
- Genus Latellopsis Bannikov & Zorzin, 2019 †
- Genus Quasinectes Bannikov & Zorzin, 2019 †
- Order Percomorpha incertae sedis
- Order Percopsiformes
- Order Perleidiformes †
- Order Pholidophoriformes †
- Order Pholidophoroidea † accepted as Pholidophoriformes †
- Order Pholidopleuriformes †
- Order Pleuronectiformes
- Order Polymixiiformes
- Order Prohaleciteiformes †
- Order Protacanthopterygii incertae sedis
- Order Ptycholepiformes †
- Order Pycnodontiformes †
- Order Redfieldiiformes †
- Order Saccopharyngiformes
- Order Salmoniformes
- Order Saurichthyiformes †
- Order Scanilepiformes †
- Order Scorpaeniformes
- Order Semionotiformes †
- Order Siluriformes
- Order Sorbininardiformes †
- Order Stephanoberyciformes
- Order Stomiiformes
- Order Synbranchiformes
- Order Syngnathiformes
- Order Tarrasiiformes †
- Order Teleostei incertae sedis
- Order Teleostii (awaiting allocation)
- Order Tetraodontiformes
- Order Tselfatiformes accepted as Tselfatiiformes †
- Order Tselfatiiformes †
- Order Zeiformes
- Genus Avitosmerus Fielitz, 2002 †
- Genus Avonichthys Wilson, Pardo & Anderson, 2018 †
- Genus Bacchiaichthys Bannikov & Sorbini, 2000 †
- Genus Bethesdaichthys Bender, 2001 †
- Genus Bluefieldius Mickle, 2018 †
- Genus Choctawichthys Schwarzhans & Stringer in Stringer et al., 2020 †
- Genus Cladistia Cope, 1870
- Genus Diplospondichthys Filleul & Dutheil, 2004 †
- Genus Fuyuanichthys Xu, Ma & Ren, 2018 †
- Genus Gwyneddocaris Bock, 1946 †
- Genus Otolithopsis Huddleston, 1983 †
- Genus Otolithus Koken, 1884 † accepted as Otolithopsis Huddleston, 1983 †
- Class Agnatha (awaiting allocation)
- Class Cephalaspidomorphi
- Class Chondrichthyes
- Class Conodonta †
- Class Dipnoi
- Class Dipnomorpha accepted as Dipnoi
- Class Galeaspida †
- Class Gnathostomata incertae sedis †
- Class Myxini
- Class Osteichthyes (awaiting allocation)
- Class Osteichthyes incertae sedis †
- Class Ostracodermi †
- Class Pisces (awaiting allocation)
- Class Placodermi †
- Class Pteraspidomorphi †
- Class Sarcopterygii
- Class Thelodonti †
- Genus Emmonsaspis Resser & Howell, 1938 †
- Genus Harajicadectes Choo, Holland, Clement, King, Challands, Young & Long, 2024 †
- Genus Kahamachli Malkani, 2019 †
- Genus Nuucichthys Lerosey-Aubril & Ortega-Hernández, 2024 †
- Genus Rhynchocopros Hunt, Lucas & Spielmann, 2013 †
- Genus Santamariacopros Hunt, Lucas & Spielmann, 2013 †
- Genus Squirmarius McCoy, Wittry, Sadabadi & Mayer, 2023 †
- Class Chordata (awaiting allocation)
- Class Eotetrapodiformes incertae sedis
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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