Trigoniocardia guanacastensias (L.G. Hertlein& A.M. Strong, 1947)
Maoricardium gudexi (FOSSIL) (C.R. Laws, 1933 †)
Americardia guppyi (K.H.J. Thiele, 1910)
Lophocardium gurabica (FOSSIL) C.J. Maury, 1917 †
Ctenocardia gustavi E. Vidal & L. Kirkendale,2007
Nemocardium hadraterum (FOSSIL) W.P. Woodring, 1982 †
Trigoniocardia haitensis (FOSSIL) (Sowerby, 1850 †)
Trigoniocardia haitensis cercadica (FOSSIL) (C.J. Maury, 1917 †)
Trigoniocardia haitensis sambaica (FOSSIL) (C.J. Maury, 1917 †)
Trachycardium halaense (FOSSIL) d'Archaic & Haime, 1854 †
Trigoniocardia hannai (FOSSIL) A.A. Olsson, 1932 †
Acanthocardia hanseata (FOSSIL) F. Kautsky, 1925 †
Papyridea harrimani (FOSSIL) W.H. Dall, 1904 †
Bucardium harrisi (FOSSIL) (Vaughan †)
Ciliatocardium hataii (FOSSIL) (I. Hayasaka, 1956 †)
Serripes hataii (FOSSIL) H. Noda, 1962 †
Schedocardia hatchetigbeensis (FOSSIL) (T.H. Aldrich, 1886 †)
Parvicardium hauniense (J.D. Petersen& H.D. Russell, 1971)
Vasticardium hawaiensis W.H. Dall, P. Bartsch& H.A. Rehder, 1939
Goniocardium heberti (FOSSIL) Vasseur, 1880 †
Frigidocardium helios J.J. Ter Poorten& J. Poutiers, 2009
Lunulicardia hemicardium (C. Linnaeus, 1758)
Lunulicardia hemicardium tumorifera (J.B.P.A. Lamarck, 1819)
Pratulum hemimeris (FOSSIL) (R. Tate, 1887 †)
Protocardia hepingxiangensis (FOSSIL) J. Chen †
Discors herculeus (FOSSIL) G.F. Dollfus, Cotter& al., 1904 †
Trigoniocardia heredia (FOSSIL) A.A. Olsson, 1922 †
Apiocardia heridia (FOSSIL) (A.A. Olsson, 1922 †)
Protocardia hillana (FOSSIL) (J. de C. Sowerby,1813 †)
Afrocardium hirsutum (FOSSIL) (H.G. Bronn, 1831 †)
Papyridea hiulcum (L.A. Reeve, 1845)
Acrosterigma hobbsae E. Vidal, 1999
Europicardium hoernesi (FOSSIL) R. La Perna, 2016 †
Nemocardium hoernesi (FOSSIL) (G.P. Deshayes, 1858 †)
Laevifulvia hungerfordi (G.B. III Sowerby, 1901)