Acanthaspidiidae Menzies, 1962 (additional source)
Acartiidae Sars G.O., 1903 (additional source)
Acrothoracica (additional source)
Aegisthidae Giesbrecht, 1893 (additional source)
Aetideidae Giesbrecht, 1892 (additional source)
Akentrogonida accepted as Rhizocephala (basis of record)
Albuneidae Stimpson, 1858 (additional source)
Alpheidae Rafinesque, 1815 (additional source)
Alpheoidea Rafinesque, 1815 (additional source)
Alvinocarididae Christoffersen, 1986 (additional source)
Amathillopsidae Pirlot, 1934 (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)
Ancorabolidae Sars G.O., 1909 (additional source)
Anelasmatidae Gruvel, 1905 accepted as Pollicipedidae Leach, 1817 (additional source)
Anomura (additional source)
Antheacheridae Sars M., 1870 (additional source)
Antheluridae Poore & Lew Ton, 1988 (additional source)
Anthuridae Leach, 1814 (additional source)
Anuropidae Stebbing, 1893 (basis of record)
Aoridae Stebbing, 1899 (additional source)
Archaeobalanidae Newman & Ross, 1976 accepted as Balanidae Leach, 1817 (additional source)
Arcturidae Dana, 1849 (additional source)
Argestidae Por, 1986 (additional source)
Arietellidae Sars G.O., 1902 (additional source)
Aristeidae Wood-Mason in Wood-Mason & Alcock, 1891 (additional source)
Armadillidiidae Brandt, 1833 (additional source)
Artotrogidae Brady, 1880 (additional source)
Asconiscidae Bonnier, 1900 (additional source)
Ascothoracida (additional source)
Ascothoracidae Grygier, 1987 (additional source)
Asellota (additional source)
Astacidea (additional source)
Asterocheridae Giesbrecht, 1899 (additional source)
Atelecyclidae Ortmann, 1893 (additional source)
Augaptilidae Sars G.O., 1905 (additional source)
Austrarcturellidae Poore & Bardsley, 1992 (basis of record)
Axiidae Huxley, 1879 (additional source)
Balanoidea Leach, 1817 (additional source)
Balanomorpha (additional source)
Basipodellidae Boxshall & Lincoln, 1983 (additional source)
Bathylasmatidae Newman & Ross, 1971 (additional source)
Bathypalaemonellidae de Saint Laurent, 1985 (additional source)
Bathypontiidae Brodsky, 1950 (additional source)
Bathysquillidae Manning, 1967 (additional source)
Bathysquilloidea Manning, 1967 (basis of record)
Benthesicymidae Wood-Mason in Wood-Mason & Alcock, 1891 (additional source)
Bentheuphausiidae Colosi, 1917 (additional source)
Bodotriidae T. Scott, 1901 (additional source)
Bopyridae Rafinesque, 1815 (additional source)
Bopyroidea Rafinesque, 1815 (basis of record)
Brachyura (additional source)
Branchiopoda (taxonomy source)
Bresiliidae Calman, 1896 (additional source)
Bresilioidea Calman, 1896 (additional source)
Brychiopontiidae Humes, 1974 (additional source)
Bythograeidae A.B. Williams, 1980 (additional source)
Bythograeoidea A.B. Williams, 1980 (additional source)
Calanoida (additional source)
Calanticidae Zevina, 1978 (additional source)
Calappidae De Haan, 1833 [in De Haan, 1833-1850] (additional source)
Calappoidea De Haan, 1833 [in De Haan, 1833-1850] (additional source)
Caligidae Burmeister, 1835 (additional source)
Callianassidae Dana, 1852 (additional source)
Campylonotidae Sollaud, 1913 (basis of record)
Campylonotoidea Sollaud, 1913 (additional source)
Cancerillidae Giesbrecht, 1897 (additional source)
Cancroidea Latreille, 1802 (additional source)
Candaciidae Giesbrecht, 1893 (additional source)
Canthocamptidae Brady, 1880 (additional source)
Caprellidae Leach, 1814 (additional source)
Carangoliopsidae Bousfield, 1977 (additional source)
Caridea (additional source)
Ceinidae J.L. Barnard, 1972 (basis of record)
Ceratocumatidae Calman, 1905 (additional source)
Chaetiliidae Dana, 1849 (additional source)
Cheluridae Allman, 1847 (additional source)
Chirostylidae Ortmann, 1892 (additional source)
Chondracanthidae Milne Edwards, 1840 (additional source)
Chordeumiidae Boxshall, 1988 (additional source)
Chthamaloidea Darwin, 1854 (additional source)
Cirolanidae Dana, 1852 (additional source)
Cirripedia (additional source)
Cladocera (basis of record)
Cladocopina (basis of record)
Clausidiidae Embleton, 1901 (additional source)
Clausocalanidae Giesbrecht, 1893 (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, 1852 (additional source)
Corystidae Samouelle, 1819 (additional source)
Crangonidae Haworth, 1825 (additional source)
Crangonoidea Haworth, 1825 (additional source)

 Authority

 for Asellidae Rafinesque, 1815

Latreille, 1802 [details]

 Authority

 for Calanidae Dana, 1849

Dana, 1846 [details]

 Authority

 for Cletodidae Scott T., 1904

Scott, 1905 [details]

 Authority

 for Cyclopinidae Sars G.O., 1913

Sars, 1913 [details]

 Authority

 for Cymothoidae Leach, 1818

Leach, 1814 [details]

 Authority

 for Hyperiidae Dana, 1852

Dana, 1853 [details]

 Authority

 for Laophontidae Scott T., 1904

Scott, 1905 [details]

 Authority

 for Longipediidae Boeck, 1865

Sars, 1903 [details]

 Authority

 for Oniscidae Latreille, 1802

Latreille, 1802 [details]

 Authority

 for Peltidiidae Claus, 1860

Sars, 1904 [details]

 Authority

 for Pontellidae Dana, 1852

Dana, 1852 [details]

 Authority

 for Tharybidae Sars G.O., 1902

Sars, 1902 [details]

 Classification

 for Conchostraca

The term Conchostraca is removed by Martin & Davis (2001) because of the distinct nature of the underlying species ... [details]

 Spelling

 for Cylindroleberidae

Cylindroleberididae Müller, 1906 [details]

 Spelling

 for Entomolepidae Brady, 1899

Entomolepididae Brady, 1899 [details]

 Spelling

 for Lafystiidae Sars, 1893

Laphystiidae [details]

 Spelling

 for Xenocoelomidae Bresciani & Lutzen, 1966

Xenocoelomatidae [details]

 Status

 for Eucladocera

Eucladocera has been removed, as we saw no evidence for grouping together all other cladocerans as the sister taxon ... [details]

 Synonymy

 for Pleurogoniidae Nordenstam, 1933

This family is considered valid by some sources (e.g. Roman & Dalens, 1999), but is considered as a junior synonym ... [details]

 Synonymy

 for Pseudomesidae Hansen, 1916

The family Pseudomesidae was sunk into the Desmosomatidae by Svavarsson (1984) [details]