Between brackets is the number of accepted marine extant species
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Shows the number of accepted marine extant species within the taxon
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- Biota (247 538)
- Kingdom Animalia (211 503)
- Subkingdom Animalia incertae sedis
- Subkingdom Metazoa accepted as Animalia
- Phylum Acanthocephala (516)
- Phylum Annelida (14 105)
- Phylum Arthropoda (59 754)
- Phylum Aschelminthes
- Phylum Brachiopoda (408)
- Phylum Bryozoa (6 539)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (132)
- Phylum Chordata (24 095)
- Phylum Cnidaria (12 578)
- Subphylum Anthozoa (7 266)
- Subphylum Cnidaria incertae sedis (1)
- Subphylum Endocnidozoa (1 151)
- Subphylum Medusozoa (4 160)
- Class Cubomedusae accepted as Cubozoa
- Class Cubozoa (51)
- Class Hydrozoa (3 815)
- Subclass Automedusae accepted as Trachylinae
- Subclass Hydroidolina (3 667)
- Order Anthoathecata (1 328)
- Order Anthoathecatae accepted as Anthoathecata
- Order Anthomedusae represented as Anthoathecata
- Order Athecata accepted as Anthoathecata
- Order Gymnoblastea accepted as Anthoathecata
- Order Laingiomedusae accepted as Anthoathecata
- Order Leptomedusae represented as Leptothecata
- Order Leptothecata (2 148)
- Suborder Conica accepted as Leptothecata
- Suborder Leptothecata incertae sedis (1)
- Suborder Proboscoida accepted as Leptothecata
- Superfamily Plumularioidea McCrady, 1859 (647)
- Superfamily Sertularioidea Lamouroux, 1812 (463)
- Family Sertularellidae Maronna et al., 2016 (150)
- Family Sertulariidae Lamouroux, 1812 (295)
- Genus Abietinaria Kirchenpauer, 1884 (35)
- Genus Amphisbetia L. Agassiz, 1862 (31)
- Genus Biseriaria Blainville, 1830 accepted as Thuiaria Fleming, 1828
- Genus Caledoniana Galea, 2015 (3)
- Genus Calyptothuiaria Marktanner-Turneretscher, 1890 accepted as Symplectoscyphus Marktanner-Turneretscher, 1890
- Genus Caminothujaria Campenhausen, 1896 (1)
- Genus Cnidoscyphus Splettstösser, 1929 accepted as Thyroscyphus Allman, 1877
- Genus Crateritheca Stechow, 1921 (7)
- Genus Desmoscyphus Allman, 1876 accepted as Salacia Lamouroux, 1816
- Genus Dictyocladium Allman, 1888 (8)
- Genus Diphasia Agassiz, 1862 (32)
- Genus Diphasiella Stechow, 1921 accepted as Diphasia Agassiz, 1862
- Genus Diphasis Agassiz, 1862 accepted as Diphasia Agassiz, 1862
- Genus Disertasia Neppi, 1918 accepted as Dynamena Lamouroux, 1812
- Genus Dymella Stechow, 1923 accepted as Thuiaria Fleming, 1828
- Genus Dynamena Lamouroux, 1812 (23)
- Genus Ellisia Westendorp, 1843 accepted as Sertularella Gray, 1848
- Genus Fraseroscyphus Boero & Bouillon, 1993 (3)
- Genus Geminella Billard, 1925 (1)
- Genus Gigantotheca Vervoort & Watson, 2003 (2)
- Genus Hydrallmania Hincks, 1868 (4)
- Genus Hypopyxis Allman, 1888 (1)
- Genus Idia Lamouroux, 1816 accepted as Idiellana Cotton & Godfrey, 1942
- Genus Idiella Stechow, 1919 accepted as Idiellana Cotton & Godfrey, 1942
- Genus Idiellana Cotton & Godfrey, 1942 (2)
- Genus Mixoscyphus Peña Cantero & Vervoort, 2005 (1)
- Genus Monopoma Marktanner-Turneretscher, 1890 accepted as Salacia Lamouroux, 1816
- Genus Nemella Stechow, 1921 accepted as Amphisbetia L. Agassiz, 1862
- Genus Nigellastrum Oken, 1815 accepted as Diphasia Agassiz, 1862
- Genus Papilionella Antsulevich & Vervoort, 1993 (2)
- Genus Pasya Stechow, 1922 accepted as Dynamena Lamouroux, 1812
- Genus Pericladium Allman, 1876 (3)
- Genus Polyserias Mereschkowsky, 1877 accepted as Thuiaria Fleming, 1828
- Genus Polysertularella Antsulevich, 2011 (1)
- Genus Salacia Lamouroux, 1816 (21)
- Genus Selaginopsis Allman, 1876 accepted as Thuiaria Fleming, 1828
- Genus Sertolara Cavolini, 1785 accepted as Sertularia Linnaeus, 1758
- Genus Sertomma Stechow, 1919 accepted as Tamarisca Kudelin, 1914
- Genus Sertularia Linnaeus, 1758 (43)
- Genus Solenoscyphus Galea, 2015 (4)
- Genus Stereotheca Stechow, 1919 (1)
- Genus Tamarisca Kudelin, 1914 (1)
- Genus Tasmanaria Watson & Vervoort, 2001 (4)
- Genus Thecocladium Allman, 1885 accepted as Sertularella Gray, 1848
- Genus Thuiaria Fleming, 1828 (50)
- Genus Thujaria accepted as Thuiaria Fleming, 1828
- Genus Tridentata Stechow, 1920 (11)
- Family Thyroscyphidae Stechow, 1920 (18)
- Family Aequoreidae Eschscholtz, 1829 (39)
- Family Aequoridae Eschscholtz, 1829 accepted as Aequoreidae Eschscholtz, 1829
- Family Barcinidae Gili, Bouillon, Pagès, Palanques & Puig, 1999 (1)
- Family Berenicidae Eschscholtz, 1829 accepted as Dipleurosomatidae Boeck, 1868
- Family Blackfordiidae Bouillon, 1984 (2)
- Family Bonneviellidae Broch, 1909 (10)
- Family Campanulariidae Johnston, 1836 (146)
- Family Campanulinidae Hincks, 1868 (36)
- Family Cannotidae Haeckel, 1879 accepted as Dipleurosomatidae Boeck, 1868
- Family Cirrholoveniidae Bouillon, 1984 (4)
- Family Clathrozoidae Stechow, 1921 (2)
- Family Clathrozonidae Hirohito, 1967 accepted as Clathrozoidae Stechow, 1921
- Family Dipleurosomatidae Boeck, 1868 (7)
- Family Dipleurosomidae Boeck, 1866 accepted as Dipleurosomatidae Boeck, 1868
- Family Eirenidae Haeckel, 1879 (81)
- Family Eucheilotidae Bouillon, 1984 accepted as Lovenellidae Russell, 1953
- Family Eucopidae Gegenbaur, 1857 accepted as Campanulariidae Johnston, 1836
- Family Eutimidae Haeckel, 1879 accepted as Eirenidae Haeckel, 1879
- Family Gonaxiidae Maggioni, 2021 (29)
- Family Haleciidae Hincks, 1868 (139)
- Family Hebellidae Fraser, 1912 (56)
- Family Hydrocerathinidae Spencer, 1891 accepted as Clathrozoidae Stechow, 1921
- Family Irenidae Haeckel, 1879 accepted as Eirenidae Haeckel, 1879
- Family Lafoeidae Hincks, 1868 (77)
- Family Laodiceidae Agassiz, 1862 (17)
- Family Lineolariidae Allman, 1864 (4)
- Family Lovenellidae Russell, 1953 (42)
- Family Malagazziidae Bouillon, 1984 (21)
- Family Melicertidae Agassiz, 1862 (6)
- Family Mitrocomidae Haeckel, 1879 (21)
- Family Obelidae Haeckel, 1879 accepted as Campanulariidae Johnston, 1836
- Family Octocannidae Haeckel, 1879 accepted as Malagazziidae Bouillon, 1984
- Family Octocannoididae Bouillon, Boero & Seghers, 1991 (4)
- Family Orchistomatidae Bouillon, 1984 (5)
- Family Orchistomidae Bouillon, 1984 accepted as Orchistomatidae Bouillon, 1984
- Family Phialellidae Russell, 1953 (10)
- Family Phialidae Haeckel, 1879 accepted as Lovenellidae Russell, 1953
- Family Phialuciidae Kramp, 1955 (1)
- Family Polycannidae Haeckel, 1879 accepted as Aequoreidae Eschscholtz, 1829
- Family Sertulariae Lamouroux, 1812 accepted as Sertulariidae Lamouroux, 1812
- Family Staurothecidae Maronna et al., 2016 (25)
- Family Sugiuridae Bouillon, 1984 (3)
- Family Symplectoscyphidae Maronna et al., 2016 (119)
- Family Syntheciidae Marktanner-Turneretscher, 1890 (35)
- Family Teclaiidae Bouillon et al., 2000 (3)
- Family Tiarannidae Russell, 1940 (13)
- Family Tiaropsidae Boero, Bouillon & Danovaro, 1987 (10)
- Family Wuvulidae Schuchert & Collins, 2021 (2)
- Family Zygocannidae Haeckel, 1879 accepted as Aequoreidae Eschscholtz, 1829
- Family Zygophylacidae Quelch, 1885 (67)
- Subfamily Clathrozoinae Stechow, 1921 accepted as Clathrozoidae Stechow, 1921
- Order Siphonophora accepted as Siphonophorae
- Order Siphonophorae (191)
- Order Thecaphora accepted as Leptothecata
- Order Thecata accepted as Leptothecata
- Suborder Leptothecatae accepted as Leptothecata
- Subclass Leptolida accepted as Hydroidolina
- Subclass Leptolinae accepted as Hydroidolina
- Subclass Stylasterina accepted as Hydroidolina
- Subclass Trachylinae (148)
- Infraclass Hydroidomedusae accepted as Hydroidolina
- Order Hydroida accepted as Hydroidolina
- Order Milleporina accepted as Hydroidolina
- Order Trachylina accepted as Trachylinae
- Class Scyphomedusae accepted as Scyphozoa
- Class Scyphozoa (243)
- Class Staurozoa (51)
- Phylum Ctenophora (184)
- Phylum Cycliophora (2)
- Phylum Dicyemida (122)
- Phylum Echinodermata (7 644)
- Phylum Ectoprocta accepted as Bryozoa
- Phylum Entoprocta (202)
- Phylum Gastrotricha (523)
- Phylum Gnathostomulida (100)
- Phylum Hemichordata (137)
- Phylum Kinorhyncha (348)
- Phylum Loricifera (46)
- Phylum Mesozoa accepted as Dicyemida
- Phylum Mollusca (52 039)
- Phylum Nematoda (6 758)
- Phylum Nematomorpha (5)
- Phylum Nemertea (1 332)
- Phylum Nemertina represented as Nemertea
- Phylum Nemertini accepted as Nemertea
- Phylum Orthonectida (24)
- Phylum Pentastomida accepted as Pentastomida
- Phylum Phoronida (13)
- Phylum Placozoa (4)
- Phylum Platyhelminthes (13 493)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (9 470)
- Phylum Priapulida (22)
- Phylum Rotatoria accepted as Rotifera
- Phylum Rotifera (208)
- Phylum Sipunculida accepted as Sipuncula
- Phylum Tardigrada (263)
- Phylum Xenacoelomorpha (437)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 790)
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
