Exogyra ganhamoroba (FOSSIL) C.J. Maury, 1936 †
Gryphaea gibberosa (FOSSIL) (Cragin, 1898 †)
Gryphaea gigantea (FOSSIL) Sowerby, 1823 †
Crenostrea gittosina (FOSSIL) (Powell & J.A. Bartrum,1929 †)
Costagyra goldfussiana (FOSSIL) Sobetskiy 1977 †
Gryphaea graysonana (FOSSIL) Stanton, 1947 †
Pycnodonte gryphina (FOSSIL) (G.P. Deshayes, 1832 †)
Exogyra guadalupae (FOSSIL) A. Whitney, 1937 †
Hyotissa haitensis (FOSSIL) (Sowerby, 1850 †)
Exogyra haliotoidea (FOSSIL) (Sowerby, 1813 †)
Pycnodonte heermanni (FOSSIL) (T.A. Conrad, 1855 †)
Exogyra hilli (FOSSIL) Cragin, 1893 †
Gyrostrea hinchada (FOSSIL) B.S. Kues, 1997 †
Amphidonte humboldtii (FOSSIL) Fischer de Waldheim,1829 †
Hyotissa hyotis (C. Linnaeus, 1758)
Parahyotissa imbricata (J.B.P.A. Lamarck, 1819)
Hyotissa inaequivalvis (G.B. Sowerby, 1871)
Pycnodonte inaspecta (FOSSIL) G.P. Deshayes, 1858 †
Hyotissa inermis (G.B. II Sowerby, 1871)
Rhynchostreon inflatum (FOSSIL) (Goldfuss) †
Pycnodonte kellumi (FOSSIL) (Jones 1938 †)
Gryphaea kenkerensis (FOSSIL) Bychkov & Nechitailenko,1985 †
Gryphaeostrea kochiensis (FOSSIL) Tashiro & Kozai, 1982 †
Empressostrea kostini M. Huber & F.Jr. Lorenz,2007
Exogyra laeviuscula (FOSSIL) F.A. Roemer, 1849 †
Exogyra lancha (FOSSIL) Stoyanow, 1949 †
Aetostreon latissimum (FOSSIL) (J.B.P.A. Lamarck,1801 †)
Rhynchostreon levis (FOSSIL) (L.W. Stephenson, 1953 †)
Pycnodonte loeli (FOSSIL) (L.G. Hertlein, 1927 †)
Pycnodonte mackayi (FOSSIL) (H.H. Suter, 1917 †)
Exogyra matheroniana (FOSSIL) A.V.M.D. D'Orbigny,1847 †
Gryphaea mccullochi (FOSSIL) Sowerby, 1826 †
Hyotissa mcgintyi (H.W. Harry, 1985)
Exogyra miotaurinensis (FOSSIL) F. Sacco, 1897 †
Nanogyra monoptera (FOSSIL) (Eudes-Deslongchamps& Eudes-Deslongchamps, 1859 †)