Cardita gabrielensis (FOSSIL) Clark & J.W. Durham,1946 †
Ainicardita gini (FOSSIL) A.M. Popov, 1983 †
Cyclocardia gouldii (W.H. Dall, 1903)
Glans gracilicostata (FOSSIL) J.E. Tenison-Woods,1877 †
Carditamera gracilis (R.J. Shuttleworth, 1856)
Cyclocardia granulata (FOSSIL) (T. Say, 1824 †)
Venericardia granulata (FOSSIL) J.L.M. Defrance, 1828 †
Cardites grayi (W.H. Dall, 1903)
Pseudocardia gregaria (FOSSIL) (F.B. Meek & Hayden,1856 †)
Baluchicardia greggiana (FOSSIL) (W.H. Dall, 1903 †)
Pteromeris guanica (A.A. Olsson, 1961)
Beguina gubernaculum (L.A. Reeve, 1843)
Megacardita guenterti (FOSSIL) Pfister & Wegmüller,1998 †
Venericardia gulielmi (FOSSIL) Gardner & E. Bowles,1939 †
Centrocardita gunnii (G.P. Deshayes, 1854)
Glyptoactis hadra (FOSSIL) (W.H. Dall, 1903 †)
Cyclocardia hamiltonensis (FOSSIL) (Clark, 1932 †)
Cardita hanguensis (FOSSIL) Cox, 1930 †
Cyclocardia harukii (FOSSIL) K. Oyama & A. Mizuno,1958 †
Purpurocardia haskelli (FOSSIL) (Fleming, 1950 †)
Venericor hatcheplata (FOSSIL) (Gardner & E. Bowles,1939 †)
Cardita hawaiensis (W.H. Dall, P. Bartsch& H.A. Rehder, 1938)
Glyptoactis healyi (FOSSIL) (C.A. Fleming, 1950 †)
Glyptoactis hebertiana (FOSSIL) (A.V.M.D. D'Orbigny,1850 †)
Pleuromeris hectori (FOSSIL) Powell, 1938 †
Baluchicardia hesperia (FOSSIL) (Gardner, 1923 †)
Pleuromeris heteroclita (FOSSIL) (J.B.P.A. Lamarck,1805 †)
Glyptoactis himerta (FOSSIL) (W.H. Dall, 1903 †)
Cardita hippopea (FOSSIL) B. de Basterot, 1825 †
Centrocardita hirasei (W.H. Dall, 1918)
Megacardita hoernesi (FOSSIL) R. La Perna, O. Mandic& M. Harzhauser, 2017 †
Venericor horatiana (FOSSIL) (Gardner, 1927 †)
Pacificor hornii (FOSSIL) (W.M. Gabb, 1864 †)
Megacardita ignorata (FOSSIL) (A.E.M. Cossmann& M.A. Peyrot, 1912 †)
Venericardia imbricata (FOSSIL) (J.F. Gmelin, 1791 †)