Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
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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)
- Order Stolidobranchia (70)
- Family Hexacrobylidae Seeliger, 1906 accepted as Molgulidae Lacaze-Duthiers, 1877
- Family Molgulidae Lacaze-Duthiers, 1877 (26)
- Family Pyuridae Hartmeyer, 1908 (17)
- Family Styelidae Herdman, 1881 (27)
- Genus Alloecarpa Michaelsen, 1900 accepted as Alloeocarpa Michaelsen, 1900
- Genus Alloeocarpa Michaelsen, 1900 (1)
- Genus Bathyoncus Herdman, 1882 (1)
- Genus Bathystyeloides Seeliger, 1907 (1)
- Genus Botryllus Gaertner, 1774
- Genus Cnemidocarpa Huntsman, 1913 (12)
- Genus Dendrodoa MacLeay, 1824 (1)
- Species Dendrodoa aggregata Müller, 1776
- Genus Dicarpa Millar, 1955 (3)
- Genus Minostyela Kott, 1969 accepted as Styela Fleming, 1822
- Genus Polycarpa Heller, 1877
- Genus Polyzoa Lesson, 1831 (1)
- Genus Styela Fleming, 1822 (7)
- 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)
