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)
- Subphylum Tunicata (224)
- Class Appendicularia (61)
- Class Ascidiacea (152)
- Order Aplousobranchia (64)
- Order Enterogona
- Order Phlebobranchia (18)
- Family Agnesiidae Huntsman, 1912 accepted as Agneziidae Monniot C. & Monniot F., 1991
- Family Agneziidae Monniot C. & Monniot F., 1991 (7)
- Family Ascidiidae Herdman, 1882 (2)
- Family Cionidae Lahille, 1887 (1)
- Family Corellidae Lahille, 1888 (5)
- Genus Corella Alder & Hancock, 1870 (1)
- Genus Corynascidia Herdman, 1882 (3)
- Genus Mysterascidia Monniot C. & Monniot F., 1982 (1)
- Family Dimeatidae Sanamyan, 2001 (1)
- Family Octacnemidae (2)
- Order Stolidobranchia (70)
- Class Larvacea accepted as Appendicularia
- Class Thaliacea (11)
- Subphylum Vertebrata (1 191)
- Phylum Cnidaria (460)
- 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)
