Adenopleurellidae Huys, 1990 (basis of record)
Agostocarididae C.W.J. Hart & Manning, 1986 (basis of record)
Alainosquillidae Moosa, 1991 (basis of record)
Amphionididae Holthuis, 1955 (current name source)
Anchimolgidae Humes & Boxshall, 1996 (basis of record)
Anelasmatidae Gruvel, 1905 (current name source)
Anomoclausiidae Gotto, 1964 (basis of record)
Antarcturidae Poore, 2001 (current name source)
Antheacheridae M. Sars, 1870 (basis of record)
Antheluridae Poore & Lew Ton, 1988 (current name source)
Anthuridae Leach, 1814 (current name source)
Archaeobalanidae Newman & Ross, 1976 (current name source)
Archidactylinidae Dana, 1853 (basis of record)
Arcturididae Poore, 2001 (current name source)
Argulidae Leach, 1819 (current name source)
Armilliferidae (current name source)
Artemiidae (current name source)
Ascothoracidae Grygier, 1987 (current name source)
Atlantasellidae Sket, 1979 (current name source)
Austrarcturellidae Poore & Bardsley, 1992 (current name source)
Bairdiidae Sars, 1865 (current name source)
Balanidae Leach, 1806 (current name source)
Barbouriidae Christoffersen, 1987 (basis of record)
Basipodellidae Boxshall & Lincoln, 1983 (current name source)
Bathylasmatidae Newman & Ross, 1971 (current name source)
Bathynellidae Grobben, 1904 (current name source)
Bathysquillidae Manning, 1967 (current name source)
Bentheuphausiidae Colosi, 1917 (current name source)
Boholinidae Fosshagen, 1989 (basis of record)
Bolttsiidae Barnard & Karaman, 1987 (basis of record)
Bosminidae Baird, 1845 (current name source)
Branchinectidae (current name source)
Branchipodidae (current name source)
Brychiopontiidae Humes, 1974 (basis of record)
Bythocyprididae Maddocks, 1969 (current name source)
Bythocytheridae Sars, 1866 (current name source)
Calabozoidae Van Lieshout, 1983 (current name source)
Calanticidae Zevina, 1978 (current name source)
Calverocheridae Stock, 1968 (basis of record)
Camptandriidae Stimpson, 1858 (basis of record)
Candonidae Kaufmann, 1900 (current name source)
Candonidae Kaufmann, 1900 (basis of record)
Candoniidae accepted as Candonidae Kaufmann, 1900 (source of synonymy)
Cardenioidae Barnard & Karaman, 1987 accepted as Synopiidae Dana, 1853 (basis of record)
Catiniidae Bocquet & Stock, 1957 (basis of record)
Catiniidae Bocquet & Stock, 1957 (extant flag source)
Catophragmidae (current name source)
Cephalobaenidae (current name source)
Cercopagididae Mordukhai-Boltovskoi, 1968 (current name source)
Chaetiliidae Dana, 1849 (current name source)
Cheidae Thurston, 1982 (basis of record)
Chelonibiidae Pilsbry, 1916 (current name source)
Chionelasmatidae Buckeridge, 1983 (current name source)
Chirocephalidae (current name source)
Chitonophilidae Avdeev & Sirenko, 1991 (basis of record)
Chordeumiidae Boxshall, 1988 (basis of record)
Chthamalidae Darwin, 1854 (current name source)
Chthamalophilidae Bocquet-Védrine, 1961 (current name source)
Chydoridae Stebbing, 1902 (current name source)
Clarenciidae Barnard & Karaman, 1987 (basis of record)
Cletopsyllidae Huys & Willems, 1989 (basis of record)
Clistosaccidae Boschma, 1928 (current name source)
Codobidae Boxshall & Ohtsuka, 2001 (basis of record)
Condukiidae Barnard & Drummond, 1982 (basis of record)
Coralliomyzontidae Humes & Stock, 1991 (basis of record)
Corallovexiidae Stock, 1975 (basis of record)
Coronididae Manning, 1980 (current name source)
Coronulidae Leach, 1817 (current name source)
Cristacoxidae Huys, 1990 (basis of record)
Cryptophialidae Gerstaecker, 1866 (current name source)
Ctenosculidae Thiele, 1925 (current name source)
Cucumaricolidae Bouligand & Delamare-Deboutteville, 1959 (basis of record)
Cyclestheriidae (current name source)
Cylindroleberididae Müller, 1906 (current name source)
Cyprididae Baird, 1845 (current name source)
Cypridinidae Baird, 1850 (current name source)
Cyproniscidae Giard & Bonnier, 1887 (basis of record)
Cytherellidae Sars, 1866 (current name source)
Cytheridae Baird, 1850 (current name source)
Cytherideidae Sars, 1925 (current name source)
Cytheromatidae Elofson, 1939 (current name source)
Cytheruridae Müller, 1894 (current name source)
Cyzicidae Stebbing, 1910 (current name source)
Daphniidae Straus, 1820 (current name source)
Darwinulidae (current name source)
Deckeniidae Ortmann, 1897 (current name source)
Dendrogastridae Gruvel, 1905 (current name source)
Deoterthridae Boxshall & Lincoln, 1987 (current name source)
Derocheilocarididae Pennak & Zinn, 1943 (current name source)
Desmocarididae Borradaile, 1915 (basis of record)
Detonidae Budde-Lund, 1906 (basis of record)
Dichelinidae Boxshall & Ohtsuka, 2001 (basis of record)
Didymocheliidae Bellan-Santini & Ledoyer, 1987 (basis of record)
Diesingidae accepted as Diesingiidae (source of synonymy)
Dikwidae Coleman & Barnard, 1991 (basis of record)
Dinopontiidae Murnane, 1967 (basis of record)
Doryphallophoridae Huys, 1991 (basis of record)
Dulichiidae Laubitz, 1983 (basis of record)
Duplorbidae Høeg & Rybakov, 1992 (current name source)
Ecbathyriontidae Humes, 1987 (basis of record)