Ostrea miradorensis (FOSSIL) A.A. Olsson, 1931 †
Ostrea monetalis (FOSSIL) Martin, 1931 †
Ostrea monmouthensis (FOSSIL) Weller, 1907 †
Ostrea montensis (FOSSIL) A.E.M. Cossmann, 1909 †
Umbrostrea montiscaprilis (FOSSIL) (Klipstein, 1843 †)
Odontogryphaea morgani (FOSSIL) (Vredenburg 1916) †
Cubitostrea multicostata (FOSSIL) F. Sacco 1897 †
Turkostrea multicostata (FOSSIL) (G.P. Deshayes, 1832 †)
Liostrea multiformis (FOSSIL) (Koch & R.W. Dunker,1837 †)
Ostrea multilirata (FOSSIL) T.A. Conrad in Emory,1857 †
Lopha murakamii (FOSSIL) Nakazawa & Newell, 1968 †
Ostrea mutabilis (FOSSIL) (G.P. Deshayes, 1832 †)
Liostrea neglecta (FOSSIL) (O.G. Michelotti, 1847 †)
Ostrea negritensis (FOSSIL) A.A. Olsson, 1928 †
Liostrea newelli (FOSSIL) Newton, 1987 †
Nicaisolopha nicaisei (FOSSIL) (Coquand, 1862 †)
Crassostrea nippona (K. Seki, 1934)
Ostrea njalindungensis (FOSSIL) Martin, 1910 †
Liostrea nordica (FOSSIL) V.N. Sinelnikova, 1997 †
Ostrea normalis (FOSSIL) W.H. Dall, 1915 †
Fatina nuda (FOSSIL) Vialov †
Ostrea ornata (FOSSIL) Devjatilova, 1981 †
Conradostrea osculum (FOSSIL) (H.A. Pilsbry & J. Brown,1927 †)
Saccostrea palmula (Carpenter, 1857)
Ostrea pangadiensis (FOSSIL) Hislop, 1859 †
Ostrea paracasensis (FOSSIL) Rivera, 1957 †
Crassostrea paraibanensis Singarajah, 1980
Lopha paramegodon (FOSSIL) W.P. Woodring, 1925 †
Ostrea parasitica (FOSSIL) J.F. Gmelin, 1791 †
Ostrea paroxis (FOSSIL) C.A. Lesueur, 1829 †
Ostrea parrensis (FOSSIL) R. Vega & al., 1999 †
Crassostrea patagonica (FOSSIL) (A.V.M.D. D'Orbigny,1842 †)
Striostrea paucichomata (FOSSIL) Bolton, 2013 †
Ostrea pejerreyensis (FOSSIL) Rivera, 1957 †
Ostrea penegemmea (FOSSIL) B. Wade, 1926 †