Gryphaea mucronata (FOSSIL) W.M. Gabb, 1869 †
Gryphaea mutabilis (FOSSIL) Morton, 1828 †
Exogyra mutatoria (FOSSIL) White, 1887 †
Nanogyra nana (FOSSIL) (J. de C. Sowerby,1822 †)
Gryphaeostrea nationsi (FOSSIL) Kirkland, 1996 †
Texigryphaea navia (FOSSIL) T.A. Conrad, 1857 †
Neopycnodonta navicularis (FOSSIL) (G.B. Brocchi, 1814 †)
Gryphaea nevadensis (FOSSIL) McRoberts, 1992 †
Pycnodonte newberryi (FOSSIL) Stanton †
Parahyotissa numisma (J.B.P.A. Lamarck, 1819)
Parahyotissa numisma procles (T. Iredale, 1908)
Gryphaea obliquata (FOSSIL) Sowerby, 1815 †
Costagyra olisiponensis (FOSSIL) (Sharpe, 1850 †)
Gryphaea orientalis (FOSSIL) E. Forbes, 1846 †
Exogyra overwegi (FOSSIL) von Buch, 1852 †
Phygraea pacifica (FOSSIL) R.L. Squires & Demetrion,1990 †
Amphidonte parasitica (FOSSIL) W.M. Gabb, 1864 †
Exogyra paupercula (FOSSIL) Cragin, 1893 †
Pycnodonte percrassa (FOSSIL) (T.A. Conrad, 1840 †)
Gryphaeostrea pernambucensis (FOSSIL) C.J. Maury, 1936 †
Crenostrea pestigris (FOSSIL) J. Marwick 1931 †
Gryphaea planoconvexa (FOSSIL) R.P. Whitfield, 1876 †
Exogyra plexa (FOSSIL) Cragin, 1893 †
Hyotissa polylopha (FOSSIL) W.P. Woodring, 1982 †
Gyrostrea polyphemus (FOSSIL) (Coquand 1865) †
Exogyra ponderosa (FOSSIL) F.A. Roemer, 1852 †
Exogyra potosina (FOSSIL) R. Garcia del Castillo& Aguilera, 1895 †
Exogyra praevirgula (FOSSIL) Douville & Jourdy, 1924 †
Phygraea pseudovesicularis (FOSSIL) (Gümbel, 1861 †)
Exogyra putnami (FOSSIL) Imlay, 1937 †
Hyotissa quercina (G.B. II Sowerby, 1871)
Exogyra quitmanensis (FOSSIL) (Cragin, 1893 †)
Pycnodonte radiata (FOSSIL) Fischer de Waldheim,1835 †
Pycnodonte rarilamella (FOSSIL) Melleville, 1843 †
Amphidonte raulinianum (FOSSIL) (d'Orbigny 1847) †