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 (247 559)
- Kingdom Animalia (211 523)
- Subkingdom Animalia incertae sedis
- Subkingdom Metazoa accepted as Animalia
- Phylum Acanthocephala (516)
- Phylum Annelida (14 107)
- Phylum Arthropoda (59 755)
- Phylum Aschelminthes
- Phylum Brachiopoda (408)
- Phylum Bryozoa (6 533)
- Class Gymnolaemata (5 876)
- Order Cheilostomata accepted as Cheilostomatida
- Order Cheilostomatida (5 535)
- Suborder Aeteina accepted as Inovicellina (19)
- Suborder Ascophora accepted as Flustrina (1)
- Suborder Ascophorina accepted as Ascophora
- Suborder Belluloporina (1)
- Suborder Cheilostomatida incertae sedis (23)
- Suborder Flustrina (5 232)
- Infraorder Acanthostega
- Infraorder Hippothoomorpha
- Infraorder Lepraliomorpha
- Infraorder Umbonulomorpha (44)
- Section Acanthostegomorpha
- Superfamily Adeonoidea Busk, 1884 (138)
- Superfamily Arachnopusioidea Jullien, 1888 (95)
- Superfamily Bifaxarioidea Busk, 1884 (49)
- Superfamily Buguloidea Gray, 1848 (666)
- Family Beaniidae Canu & Bassler, 1927 (74)
- Family Bugulidae Gray, 1848 (290)
- Family Candidae d'Orbigny, 1851 (293)
- Family Epistomiidae Gregory, 1893 (5)
- Family Euoplozoidae Harmer, 1926 (1)
- Family Jubellidae Reverter-Gil & Fernández-Pulpeiro, 2001 (1)
- Family Rhabdozoidae MacGillivray, 1887 (2)
- Genus Rhabdozoum Hincks, 1882 (2)
- Species Rhabdozoum stephensoni O'Donoghue & de Watteville, 1944
- Species Rhabdozoum wilsoni Hincks, 1882
- Family Scrupocellariidae Levinsen, 1909 accepted as Candidae d'Orbigny, 1851
- Superfamily Calloporoidea Norman, 1903 (544)
- Superfamily Catenicelloidea Busk, 1852 (115)
- Superfamily Cellarioidea Fleming, 1828 (127)
- Superfamily Celleporoidea Johnston, 1838 (841)
- Superfamily Chlidoniopsoidea Harmer, 1957 (1)
- Superfamily Conescharellinoidea Levinsen, 1909 (135)
- Superfamily Cribrilinoidea Hincks, 1879 (192)
- Superfamily Didymoselloidea Brown, 1952 (8)
- Superfamily Euthyriselloidea Bassler, 1953 (6)
- Superfamily Flustrina incertae sedis (3)
- Superfamily Flustroidea Fleming, 1828 (102)
- Superfamily Hippothooidea Busk, 1859 (118)
- Superfamily Lepralielloidea Vigneaux, 1949 (316)
- Superfamily Lunulitoidea Lagaaij, 1952 (36)
- Superfamily Mamilloporoidea Canu & Bassler, 1927 (58)
- Superfamily Microporoidea Gray, 1848 (137)
- Superfamily Monoporelloidea Hincks, 1882 (27)
- Superfamily Pseudolepralioidea Silén, 1942 (2)
- Superfamily Schizoporelloidea Jullien, 1883 (797)
- Superfamily Siphonicytaroidea Harmer, 1957 (13)
- Superfamily Smittinoidea Levinsen, 1909 (658)
- Superfamily Urceoliporoidea Bassler, 1936 (4)
- Suborder Inovicellina
- Suborder Malacostegina accepted as Membraniporina
- Suborder Membraniporina (134)
- Suborder Neocheilostomatina accepted as Flustrina
- Suborder Scrupariina (8)
- Suborder Tendrina (4)
- Suborder Thalamoporellina (113)
- Order Ctenostomata accepted as Ctenostomatida
- Order Ctenostomatida (341)
- Class Phylactolaemata (2)
- Class Stenolaemata (655)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (132)
- Phylum Chordata (24 096)
- Phylum Cnidaria (12 578)
- Phylum Ctenophora (184)
- Phylum Cycliophora (2)
- Phylum Dicyemida (122)
- Phylum Echinodermata (7 646)
- 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 (52 044)
- Phylum Nematoda (6 758)
- Phylum Nematomorpha (5)
- Phylum Nemertea (1 334)
- 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 (13 497)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (9 468)
- Phylum Priapulida (22)
- Phylum Rotatoria accepted as Rotifera
- Phylum Rotifera (219)
- Phylum Sipunculida accepted as Sipuncula
- Phylum Tardigrada (263)
- Phylum Xenacoelomorpha (437)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 791)
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
