Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
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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
- Family Adrianichthyidae Weber, 1913
- Family Belonidae Bonaparte, 1835
- Family Beloniformes (awaiting allocation)
- Family Evolantiidae Smith, 1955 accepted as Hemiramphidae Gill, 1859
- Family Exocoetidae Risso, 1827
- Genus Abeichthys Parin, 1961 accepted as Cheilopogon Lowe, 1841
- Genus Amustotrogon Shakhovskoy & Parin, 2019 accepted as Cheilopogon Lowe, 1841
- Genus Arthamalopteryx accepted as Exocoetus Linnaeus, 1758
- Genus Cheilopogon Lowe, 1841
- Genus Cheliopogon accepted as Cheilopogon Lowe, 1841
- Genus Chilopogon Agassiz, 1846 accepted as Cheilopogon Lowe, 1841
- Genus Cyprilurus De Kay, 1842 accepted as Cypselurus Swainson, 1838
- Genus Cypselurus Swainson, 1838
- Genus Cypselurus Lowe, 1841 accepted as Cypselurus Swainson, 1838
- Genus Cypserulus accepted as Cypselurus Swainson, 1838
- Genus Cypsilurus Swainson, 1839 accepted as Cypselurus Swainson, 1838
- Genus Cyselorus accepted as Cypselurus Swainson, 1838
- Genus Cyselurus accepted as Cypselurus Swainson, 1838
- Genus Danichthys Bruun, 1934 accepted as Hirundichthys Breder, 1928
- Genus Eucypsilurus Bruun, 1935 accepted as Cheilopogon Lowe, 1841
- Genus Exocaetus Lacepède, 1803 accepted as Exocoetus Linnaeus, 1758
- Genus Exocetus Cuvier, 1817 accepted as Exocoetus Linnaeus, 1758
- Genus Exocilus Hamilton, 1843 accepted as Exocoetus Linnaeus, 1758
- Genus Exococtus Temminck & Schlegel in Siebold, 1846 accepted as Exocoetus Linnaeus, 1758
- Genus Exocoethus Linnaeus, 1771 accepted as Exocoetus Linnaeus, 1758
- Genus Exocoetus Linnaeus, 1758
- Genus Exoetus Radermacher, 1779 accepted as Exocoetus Linnaeus, 1758
- Genus Exonautes Jordan & Evermann, 1896 accepted as Hirundichthys Breder, 1928
- Genus Fodiator Jordan & Meek, 1885
- Genus Halacypselurus accepted as Halocypselus Weinland, 1858
- Genus Halocypselus Weinland, 1858 accepted as Exocoetus Linnaeus, 1758
- Genus Hemiexocoetus Fowler, 1901 accepted as Fodiator Jordan & Meek, 1885
- Genus Hirundichthys Breder, 1928
- Genus Hirundo Catesby, 1771 accepted as Exocoetus Linnaeus, 1758
- Genus Maculocoetus Whitley & Colefax, 1938 accepted as Cypselurus Swainson, 1838
- Genus Paracypselurus Parin, 1961 accepted as Cheilopogon Lowe, 1841
- Genus Paraexocoetus accepted as Parexocoetus Bleeker, 1865
- Genus Paraxocoetus accepted as Parexocoetus Bleeker, 1865
- Genus Parexocoetoides Fowler, 1944 accepted as Cypselurus Swainson, 1838
- Species Parexocoetoides vanderbilti Fowler, 1944 accepted as Cheilopogon pinnatibarbatus (Bennett, 1831)
- Genus Parexocoetus Bleeker, 1865
- Genus Poecilocypsilurus Bruun, 1935 accepted as Cypselurus Swainson, 1838
- Genus Procypsilurus Bruun, 1935 accepted as Cheilopogon Lowe, 1841
- Genus Prognichthys Breder, 1928
- Genus Ptenichthys Müller, 1843 accepted as Cheilopogon Lowe, 1841
- Genus Ptenonotus Ogilby, 1908
- Genus Pterichthus Commerson in Lacepède, 1803 accepted as Exocoetus Linnaeus, 1758
- Genus Zonocypselurus Parin & Bogorodsky, 2011 accepted as Cypselurus Swainson, 1838
- Family Hemiramphidae Gill, 1859
- Family Hemirhamphidae accepted as Hemiramphidae Gill, 1859
- Family Horaichthyidae Kulkarni, 1940 accepted as Adrianichthyidae Weber, 1913
- Family Oryziatidae Myers, 1938 accepted as Adrianichthyidae Weber, 1913
- Family Scomberesocidae Bleeker, 1859
- Family Scomberosocidae accepted as Scomberesocidae Bleeker, 1859
- Family Zenarchopteridae Fowler, 1934
- 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
- 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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