Cyclocardia bernardi (FOSSIL) Renard, 1994 †
Pleuromeris bezanconi (FOSSIL) A.E.M. Cossmann, 1887 †
Cardites bicolor (J.B.P.A. Lamarck, 1819)
Purpurocardia bimaculata (G.P. Deshayes, 1854)
Venericardia bistrovi (FOSSIL) Pronina, 1969 †
Cyclocardia borealis (T.A. Conrad, 1832)
Ainicardita borensis (FOSSIL) (Simonova, 1941 †)
Venericardia brassica (FOSSIL) C.J. Maury, 1925 †
Megacardita brocchii (FOSSIL) (O.G. Michelotti, 1839 †)
Powellina brookesi (H.J. Finlay, 1926)
Baluchicardia bulla (FOSSIL) (W.H. Dall, 1903 †)
Venericor cacamai (FOSSIL) (Gardner & E. Bowles,1939 †)
Paraglans calcitrapoides (FOSSIL) (J.B.P.A. Lamarck,1805 †)
Cardita caliculaeformis G.P. Deshayesin L. Maillard, 1863
Cyclocardia californica (FOSSIL) W.H. Dall, 1903 †
Cyclocardia calva R. Tate, 1887
Cardita calyculata (C. Linnaeus, 1758)
Venericardia camachoi (FOSSIL) Rossi de Garcia& J.L. Levy, 1959 †
Glans camerata (FOSSIL) A. von Koenen †
Cardites canaliculata L.A. Reeve, 1843
Cardita cancellata (FOSSIL) Woods 1897 †
Cardita caribbeanensis (FOSSIL) A.A. Olsson, 1922 †
Claibornicardia carinata (FOSSIL) (Sowerby, 1819 †)
Glyptoactis carmenensis (FOSSIL) Clark & J.W. Durham,1946 †
Venericardia carolinensis (FOSSIL) T.A. Conrad, 1848 †
Glans carpenteri (É. Lamy, 1922)
Glans carpenteri subquadrata P.P. Carpenter, 1864
Rotundicardia carsonensis (FOSSIL) (W.H. Dall, 1903 †)
Cardita castanea G.P. Deshayes, 1854
Cyclocardia castor (FOSSIL) (W.H. Dall †)
Cyclocardia castrana (FOSSIL) L.C. Glenn, 1904 †
Carditamera catharia (FOSSIL) W.H. Dall, 1903 †
Cyclocardia caumontensis (FOSSIL) (Deshayes) †
Cyclocardia caumontiensis (FOSSIL) (G.P. Deshayes, 1858 †)
Purpurocardia cavatica (C. Hedley, 1902)