Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
The last expanded taxon is highlighted
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- Biota (12 687)
- Kingdom Animalia (9 793)
- Phylum Acanthocephala (30)
- Phylum Annelida (618)
- Phylum Arthropoda (4 266)
- Phylum Brachiopoda (64)
- Phylum Bryozoa (363)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (25)
- Phylum Chordata (1 415)
- Phylum Cnidaria (460)
- Subphylum Anthozoa (126)
- Subphylum Cnidaria incertae sedis
- Subphylum Endocnidozoa
- Subphylum Medusozoa (334)
- Class Hydrozoa (312)
- Subclass Hydroidolina (279)
- Order Anthoathecata (80)
- Order Leptothecata (152)
- Suborder Conica accepted as Leptothecata
- Suborder Proboscoida accepted as Leptothecata
- Superfamily Plumularioidea McCrady, 1859 (39)
- Superfamily Sertularioidea Lamouroux, 1812 (5)
- Family Aequoreidae Eschscholtz, 1829 (1)
- Family Campanulariidae Johnston, 1836 (12)
- Genus Campanularia Lamarck, 1816 (2)
- Genus Clytia Lamouroux, 1812 (3)
- Genus Obelia Péron & Lesueur, 1810 (3)
- Genus Orthopyxis L. Agassiz, 1862 (2)
- Genus Phialidium Leuckart, 1856 accepted as Clytia Lamouroux, 1812
- Genus Silicularia Meyen, 1834 (2)
- Genus Tulpa Stechow, 1921
- Family Campanulinidae Hincks, 1868 (2)
- Family Haleciidae Hincks, 1868 (14)
- Family Hebellidae Fraser, 1912 (2)
- Family Lafoeidae Hincks, 1868 (10)
- Family Laodiceidae Agassiz, 1862 (6)
- Family Malagazziidae Bouillon, 1984
- Family Mitrocomidae Haeckel, 1879 (3)
- Family Phialellidae Russell, 1953 (3)
- Family Staurothecidae Maronna et al., 2016 (22)
- Family Symplectoscyphidae Maronna et al., 2016 (29)
- Family Syntheciidae Marktanner-Turneretscher, 1890
- Family Tiarannidae Russell, 1940 (3)
- Family Zygophylacidae Quelch, 1885 (1)
- Order Siphonophora accepted as Siphonophorae
- Order Siphonophorae (47)
- Subclass Trachylinae (33)
- Class Scyphozoa (18)
- Class Staurozoa (4)
- Phylum Ctenophora (11)
- Phylum Dicyemida (1)
- Phylum Echinodermata (638)
- Phylum Ectoprocta accepted as Bryozoa
- Phylum Entoprocta
- Phylum Gastrotricha (1)
- Phylum Gnathostomulida
- Phylum Hemichordata (6)
- Phylum Kinorhyncha (9)
- Phylum Loricifera
- Phylum Mesozoa accepted as Dicyemida
- Phylum Mollusca (753)
- Phylum Nematoda (396)
- Phylum Nemertea (75)
- Phylum Nemertina represented as Nemertea
- Phylum Platyhelminthes (134)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (281)
- Phylum Priapulida (4)
- Phylum Rotifera (163)
- Phylum Tardigrada (80)
- Kingdom Archaea (1)
- Kingdom Bacteria (310)
- Kingdom Chromista (956)
- Kingdom Fungi (740)
- Kingdom Plantae (822)
- Kingdom Protozoa (65)
