Abrytusites Nikolov & Breskovski, 1969 † (verified source for family)
Actaeonella Reuss, 1845 † (verified source for family)
Actinarea d'Orbigny, 1851 † accepted as Actinaraea d'Orbigny, 1849 † (verified source for family)
Acutimitoceras Librovich, 1957 † (verified source for family)
Aetostreon Bayle, 1878 † (verified source for family)
Agathirses Montfort, 1808 † accepted as Tenagodus Guettard, 1770 (verified source for family)
Alectryonia Fischer von Waldheim, 1807 † accepted as Lopha Röding, 1798 (verified source for family)
Alepidaster Meek, 1872 † (verified source for family)
Aletes Carpenter, 1857 accepted as Thylacodes Guettard, 1770 (verified source for family)
Amblyacrum Cossmann, 1889 (verified source for family)
Amphiastraea Gregory, 1900 † (verified source for family)
Ampullella Cox, 1931 † (verified source for family)
Anabacia Milne-Edwards & Haime, 1849 † (verified source for family)
Anchisauripus Lull, 1904 † (verified source for family)
Anoptera Ulrich, 1893 † (verified source for family)
Antillia Duncan, 1864 † (verified source for family)
Aphanomena Bergstrom, 1968 † (verified source for family)
Arcophyllum Markov, 1926 † (verified source for family)
Arcturellina Chavan, 1951 (verified source for family)
Argillornis Owen, 1878 † (verified source for family)
Arisella Crusafont-Pairo, 1967 † (verified source for family)
Artimonius Muldoon & Gunnell, 2002 † (verified source for family)
Ascosymplegma Rauff, 1938 † (verified source for family)
Astieriptychites Bodylevskii, 1960 † (verified source for family)
Atelophyllum Wedekind, 1925 † (verified source for family)
Austiniceras Spath, 1921 † (verified source for family)
Bairdiacratia Jiang, 1983 † (verified source for family)
Baleaphryne Sanchiz & Adrover, 1977 † (verified source for family)
Baltoceras Holm, 1897 † (verified source for family)
Barnesella Bridge & Cloud, 1947 † (verified source for family)
Bathygalea Woodring & Olsson, 1957 accepted as Echinophoria Sacco, 1890 (verified source for family)
Bathymalletia Kuroda & Habe in Kuroda, Habe & Oyama, 1971 accepted as Malletia Desmoulins, 1832 (verified source for family)
Bemella Missarzhevsky, 1969 † (verified source for family)
Birostrina Sowerby, 1821 † (verified source for family)
Blastinia Zittel, 1878 † (verified source for family)
Blyskavomena Havlicek, 1976 † (verified source for family)
Bohemura Jaekel, 1903 † (verified source for family)
Bojarkia Saks & Shulgina, 1969 † (verified source for family)
Boltimys Senegas & Michaux, 2000 † (verified source for family)
Boochoerus Cope, 1879 † (verified source for family)
Boonderella Percival, 1991 † (verified source for family)
Boreostracon Simpson, 1929 † (verified source for family)
Bothriodon Aymard, 1848 † (verified source for family)
Brontozoum Hitchcock, 1847 † (verified source for family)
Bryanictis Maclntyre, 1966 † (verified source for family)
Bucaniopsis Reed, 1921 † (verified source for family)
Bucardiomya Rollier, 1912 † (verified source for family)
Buccitriton Conrad, 1865 † (verified source for family)
Byssonychia Ulrich, 1893 † (verified source for family)
Caelobassus Stilwell & Zinsmeister, 1992 † (verified source for family)
Caenotreta Cocks, 1979 † (verified source for family)
Calamopora Goldfuss, 1829 † (verified source for family)
Calamoseris Alloiteau in Piveteau, 1952 † (verified source for family)
Calliomphalus Cossmann, 1888 † (verified source for family)
Callotrochus Wenz, 1938 † (verified source for family)
Calygirtyoceras Korn, Klug & Mapes, 1999 † (verified source for family)
Cereiphyllia Barta-Calmus, 1973 † (verified source for family)
Charactocerina Foerste, 1935 † (verified source for family)
Chonetoidea Jones, 1928 † (verified source for family)
Cimolopteryx Marsh, 1889 † (verified source for family)
Cirropsis Perner in Barrande, 1903 † (verified source for family)
Claibornicardia Stenzel & Krause, 1957 † (verified source for family)
Clarkeoceras Wedekind, 1918 † (verified source for family)
Cleidophorus Hall, 1847 † (verified source for family)
Climacopoma Fischer, 1885 † (verified source for family)
Clypeoceras Eastman in Eastman-Zittel, 1913 † (verified source for family)
Codonophyllum Lang, Smith & Thomas, 1940 † (verified source for family)
Coelocentrus Zittel, 1882 † (verified source for family)
Colliculus Monterosato, 1888 accepted as Gibbula Risso, 1826 (verified source for family)
Colostracon Hamlin, 1884 † (verified source for family)
Columnastraea d'Orbigny, 1850 † accepted as Columastrea d'Orbigny, 1849 † (verified source for family)
Cominula Finlay, 1926 (verified source for family)
Complexapora Kiessling & Zeiss, 1992 † (verified source for family)
Compositella Xu & Liu, 1983 † (verified source for family)
Conactaeon Meek, 1863 † (verified source for family)
Coniproetus Alberti, 1966 † (verified source for family)
Connectastrea Koby in Koby & Choffat, 1904 † (verified source for family)
Conocerithium Sacco in Bellardi & Sacco, 1895 accepted as Cerithium Bruguière, 1789 (verified source for family)
Conodectes Cope, 1896 † (verified source for family)
Contraconus Olsson & Harbison, 1953 † (verified source for family)
Coronula Lamarck, 1802 (verified source for family)
Cosmogoniophorina Isberg, 1934 † (verified source for family)
Costispiriferina Dagis, 1974 † (verified source for family)
Costistrophonella Harper & Boucot, 1978 † (verified source for family)
Cravenoceratoides Hudson, 1941 † (verified source for family)
Crinistrophia Havlicek, 1967 † (verified source for family)
Cristiferina Cooper, 1956 † (verified source for family)
Crossostoma Morris & Lycett, 1851 † (verified source for family)
Cryptatrypa Siehl, 1962 † (verified source for family)
Cseria Kretzoi, 1959 † (verified source for family)
Cunearca Dall, 1898 accepted as Anadara Gray, 1847 (verified source for family)
Cyclonemina Perner in Barrande, 1907 † (verified source for family)
Cylindrotruncatum Sohl, 1963 † (verified source for family)
Cylismilia Roniewicz, 1988 † (verified source for family)
Cyniscella Cossmann, 1888 † (verified source for family)
Cyphomena Cooper, 1956 † (verified source for family)
Cyrtodelphis Abel, 1900 † (verified source for family)
Deaechospira Wagner, 2002 † (verified source for family)
Delphinella Le Hegarat, 1971 † (verified source for family)
Desmathyus Matthew, 1907 † (verified source for family)