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 (12 685)
- Kingdom Animalia (9 791)
- Phylum Acanthocephala (30)
- Phylum Annelida (617)
- Phylum Arthropoda (4 265)
- 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)
- Suborder Anthoathecata incertae sedis
- Suborder Aplanulata (14)
- Section Aplanulata incertae sedis (1)
- Superfamily Tubulariida accepted as Tubulariidae Goldfuss, 1818
- Family Candelabridae Stechow, 1921 (1)
- Family Corymorphidae Allman, 1872 (7)
- Family Margelopsidae Mayer, 1910 (1)
- Genus Margelopsis Hartlaub, 1897 (1)
- Family Myriothelidae Hincks, 1868 accepted as Candelabridae Stechow, 1921
- Family Tubulariidae Goldfuss, 1818 (4)
- Subfamily Euphysidae Haeckel, 1879 accepted as Corymorphidae Allman, 1872
- Suborder Capitata (6)
- Suborder Filifera (60)
- Order Leptothecata (152)
- 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)
