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
Click on "+" to expand/show all child taxa
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- Biota (879)
- Kingdom Animalia (681)
- Phylum Annelida (119)
- Phylum Arthropoda (168)
- Subphylum Chelicerata (6)
- Subphylum Crustacea (162)
- Superclass Allotriocarida (28)
- Superclass Multicrustacea (134)
- Class Copepoda (16)
- Class Hexanauplia accepted as Thecostraca
- Class Malacostraca (113)
- Subclass Eumalacostraca (113)
- Superorder Eucarida (27)
- Superorder Peracarida (86)
- Order Amphipoda (58)
- Suborder Amphilochidea (12)
- Suborder Gammaridea
- Suborder Hyperiidea (1)
- Suborder Senticaudata (45)
- Infraorder Corophiida (19)
- Parvorder Caprellidira (7)
- Superfamily Caprelloidea Leach, 1814 (3)
- Superfamily Microprotopoidea Myers & Lowry, 2003 (1)
- Superfamily Photoidea Boeck, 1871 (3)
- Family Ischyroceridae Stebbing, 1899 (2)
- Subfamily Ischyrocerinae Stebbing, 1899 (2)
- Tribe Ischyrocerini Stebbing, 1899 (2)
- Genus Jassa Leach, 1814 (1)
- Genus Parajassa Stebbing, 1899 (1)
- Family Photidae Boeck, 1871 (1)
- Parvorder Corophiidira (12)
- Infraorder Gammarida (16)
- Infraorder Hadziida (6)
- Infraorder Talitrida (4)
- Order Cumacea (6)
- Order Isopoda (9)
- Order Mysida (11)
- Order Tanaidacea (2)
- Class Thecostraca (5)
- Phylum Bryozoa (3)
- Phylum Chaetognatha (2)
- Phylum Chordata (276)
- Phylum Cnidaria (5)
- Phylum Ctenophora (3)
- Phylum Echinodermata (7)
- Phylum Kinorhyncha (2)
- Phylum Mollusca (70)
- Phylum Nematoda (1)
- Phylum Platyhelminthes (1)
- Phylum Porifera (2)
- Phylum Rotifera (22)
- Kingdom Bacteria (5)
- Kingdom Chromista (179)
- Kingdom Plantae (14)
- Kingdom Protozoa