Acartiidae Sars G.O., 1903 (additional source)
Aegisthidae Giesbrecht, 1893 (additional source)
Aetideidae Giesbrecht, 1892-1893 (additional source)
Albuneidae Stimpson, 1858 (additional source)
Alpheidae Rafinesque, 1815 (additional source)
Alpheoidea Rafinesque, 1815 (additional source)
Ameiridae Boeck, 1865 (additional source)
Ampeliscidae Krøyer, 1842 (additional source)
Amphilochidae Boeck, 1871 (additional source)
Amphipoda (additional source)
Ampithoidae Boeck, 1871 (additional source)
Anchistioididae Borradaile, 1915 accepted as Palaemonidae Rafinesque, 1815 (basis of record)
Ancorabolidae Sars G.O., 1909 (additional source)
Anisogammaridae Bousfield, 1977 (additional source)
Anomopoda (basis of record)
Anomura (additional source)
Anostraca (basis of record)
Anthuridae Leach, 1814 (additional source)
Aoridae Stebbing, 1899 (additional source)
Archaeobalanidae Newman & Ross, 1976 accepted as Archaeobalaninae Newman & Ross, 1976 (additional source)
Argulidae Leach, 1819 (additional source)
Arguloidea Yamaguti, 1963 (additional source)
Arietellidae Sars G.O., 1902 (additional source)
Aristeidae Wood-Mason in Wood-Mason & Alcock, 1891 (additional source)
Asellota (additional source)
Astacidea (additional source)
Astacoidea Latreille, 1802 (taxonomy source)
Asterocheridae Giesbrecht, 1899 (additional source)
Atyidae De Haan, 1849 (additional source)
Atyoidea De Haan, 1849 (additional source)
Augaptilidae Sars G.O., 1905 (additional source)
Axiidae Huxley, 1879 (additional source)
Balanoidea Leach, 1817 (additional source)
Balanomorpha (additional source)
Bathylasmatidae Newman & Ross, 1971 (additional source)
Bathypontiidae Brodsky, 1950 (additional source)
Bathysquillidae Manning, 1967 (additional source)
Benthesicymidae Wood-Mason in Wood-Mason & Alcock, 1891 (additional source)
Bentheuphausiidae Colosi, 1917 (additional source)
Biancolinidae J.L. Barnard, 1972 accepted as Ampithoidae Boeck, 1871 (additional source)
Bomolochidae Claus, 1875 (additional source)
Bopyridae Rafinesque, 1815 (additional source)
Bopyroidea Rafinesque, 1815 (basis of record)
Bosminidae Baird, 1845 (basis of record)
Branchiopoda (taxonomy source)
Branchiura (additional source)
Calanoida (additional source)
Calanticidae Zevina, 1978 (additional source)
Calappidae De Haan, 1833 (additional source)
Calappoidea De Haan, 1833 (additional source)
Caligidae Burmeister, 1835 (additional source)
Callianassidae Dana, 1852 (additional source)
Cancroidea Latreille, 1802 (additional source)
Candaciidae Giesbrecht, 1893 (additional source)
Caprellidae Leach, 1814 (additional source)
Caridea (additional source)
Carpiliidae Ortmann, 1893 (basis of record)
Chelonibiidae Pilsbry, 1916 (additional source)
Chirostylidae Ortmann, 1892 (additional source)
Chondracanthidae Milne Edwards, 1840 (additional source)
Chthamalidae Darwin, 1854 (additional source)
Chthamaloidea Darwin, 1854 (additional source)
Cirolanidae Dana, 1852 (additional source)
Cirripedia (additional source)
Cladocera accepted as Diplostraca (basis of record)
Clausidiidae Embleton, 1901 (additional source)
Clausocalanidae Giesbrecht, 1893 (additional source)
Clytemnestridae Scott A., 1909 (additional source)
Coenobitidae Dana, 1851 (basis of record)
Colomastigidae Chevreux, 1899 (additional source)
Corallanidae Hansen, 1890 (basis of record)
Coronulidae Leach, 1817 (additional source)
Coronuloidea Leach, 1817 (additional source)
Corophiidae Leach, 1814 (additional source)
Corycaeidae Dana, 1846 (additional source)
Corystidae Samouelle, 1819 (additional source)
Crangonidae Haworth, 1825 (additional source)
Crangonoidea Haworth, 1825 (additional source)
Cryptochiridae Paulson, 1875 (additional source)
Cryptochiroidea Paulson, 1875 (additional source)
Ctenochelidae Manning & Felder, 1991 (additional source)
Ctenopoda (basis of record)
Cyclodorippoidea Ortmann, 1892 (additional source)
Cyclopidae Rafinesque, 1815 (additional source)
Cyclopoida (additional source)
Cylindroleberidoidea Mueller, 1906 (basis of record)
Cypridinidae Baird, 1850 (additional source)
Cypridinoidea Baird, 1850 (basis of record)
Daphniidae Straus, 1820 (basis of record)
Dexaminidae Leach, 1814 (additional source)
Dinopontiidae Murnane, 1967 (additional source)
Diogenidae Ortmann, 1892 (additional source)
Diplocheta (basis of record)
Diplostraca (basis of record)
Dorippidae MacLeay, 1838 (additional source)
Dorippoidea MacLeay, 1838 (additional source)
Dromiacea (additional source)
Dromiidae De Haan, 1833 (additional source)
Dromioidea De Haan, 1833 (additional source)
Dynomenidae Ortmann, 1892 (basis of record)