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 (879)
- Kingdom Animalia (681)
- Phylum Annelida (119)
- Phylum Arthropoda (168)
- Subphylum Chelicerata (6)
- Subphylum Crustacea (162)
- Superclass Allotriocarida (28)
- Class Branchiopoda (23)
- Subclass Phyllopoda (23)
- Superorder Diplostraca (23)
- Order Anomopoda (21)
- Family Bosminidae Baird, 1845 (2)
- Family Chydoridae Dybowski & Grochowski, 1894 (6)
- Subfamily Aloninae Dybowski & Grochowski, 1894 (1)
- Genus Acroperus Baird, 1843 (1)
- Genus Alona Baird, 1843 (1)
- Genus Camptocercus Baird, 1843 (1)
- Genus Chydorus Leach, 1816 (1)
- Genus Disparalona Fryer, 1968 (1)
- Family Daphniidae Straus, 1820 (11)
- Family Eurycercidae Kurz, 1875
- Family Macrothricidae Norman & Brady, 1867 (1)
- Family Moinidae Goulden, 1968 (1)
- Order Cladocera accepted as Diplostraca
- Order Ctenopoda (2)
- Infraorder Onychocaudata represented as Diplostraca
- Class Hexapoda (5)
- Superclass Multicrustacea (134)
- 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