Cardita gabrielensis (FOSSIL) Clark & J.W. Durham,1946 † Colombia, Bolivar
Ainicardita gini (FOSSIL) A.M. Popov, 1983 † Western Kamchatka
Cyclocardia gouldii (W.H. Dall, 1903) California, San Diego County12,2 mm
Glans gracilicostata (FOSSIL) J.E. Tenison-Woods,1877 † Tasmania36 mm
Carditamera gracilis (R.J. Shuttleworth, 1856) Venezuela, Margarita Island30 mm
Cyclocardia granulata (FOSSIL) (T. Say, 1824 †) Florida24 mm
Venericardia granulata (FOSSIL) J.L.M. Defrance, 1828 † France, Paris Basin28 mm
Cardites grayi (W.H. Dall, 1903) Mexico31 mm
Pseudocardia gregaria (FOSSIL) (F.B. Meek & Hayden,1856 †) Tennessee, McNairy County
Baluchicardia greggiana (FOSSIL) (W.H. Dall, 1903 †) USA, Mississippi, Lauderdale
Pteromeris guanica (A.A. Olsson, 1961) Bahamas
Beguina gubernaculum (L.A. Reeve, 1843) Tanzania58 mm
Megacardita guenterti (FOSSIL) Pfister & Wegmüller,1998 † Switzerland
Venericardia gulielmi (FOSSIL) Gardner & E. Bowles,1939 † USA, Alabama, Clarke
Centrocardita gunnii (G.P. Deshayes, 1854)
Glyptoactis hadra (FOSSIL) (W.H. Dall, 1903 †) Florida
Cyclocardia hamiltonensis (FOSSIL) (Clark, 1932 †) Russia, Sakhalin
Cardita hanguensis (FOSSIL) Cox, 1930 † Pakistan, N.W.F.P., Kohat
Cyclocardia harukii (FOSSIL) K. Oyama & A. Mizuno,1958 †
Purpurocardia haskelli (FOSSIL) (Fleming, 1950 †)
Venericor hatcheplata (FOSSIL) (Gardner & E. Bowles,1939 †) USA, Alabama, Washington
Cardita hawaiensis (W.H. Dall, P. Bartsch& H.A. Rehder, 1938) Hawaii7 mm
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 †) Texas
Pleuromeris heteroclita (FOSSIL) (J.B.P.A. Lamarck,1805 †) France, Paris Basin11 mm
Glyptoactis himerta (FOSSIL) (W.H. Dall, 1903 †) USA, Florida, Okaloosa
Cardita hippopea (FOSSIL) B. de Basterot, 1825 † France, Aquitaine30 mm
Centrocardita hirasei (W.H. Dall, 1918) China, Zhejiang10,7 mm
Megacardita hoernesi (FOSSIL) R. La Perna, O. Mandic& M. Harzhauser, 2017 † Austria64 mm
Venericor horatiana (FOSSIL) (Gardner, 1927 †) USA, Alabama, Covington
Pacificor hornii (FOSSIL) (W.M. Gabb, 1864 †) Colombia, La Guajira
Megacardita ignorata (FOSSIL) (A.E.M. Cossmann& M.A. Peyrot, 1912 †) France, Aquitaine27 mm
Venericardia imbricata (FOSSIL) (J.F. Gmelin, 1791 †) Ukraine39 mm