Venericardia rouaulti (FOSSIL) A.E.M. Cossmann, 1922 †
Cyclocardia roundiformis (FOSSIL) (Ilyina, 1963 †)
Glans rovereti (FOSSIL) E.W. Vredenburg, 1928 †
Cardites rufa (FOSSIL) (E.S.J.L. de Laborde& G.P. Deshayes, 1834 †)
Cardites rufa E.S.J.L. de Laborde& G.P. Deshayes, 1834
Cardita rufescens J.B.P.A. Lamarck, 1819
Centrocardita sagamiensis (J.T. Kuroda& T. Habe in T. Habe, 1961)
Cardita salbriacensis (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1914 †
Venericor samanensis (FOSSIL) (A.A. Olsson, 1928 †)
Pleuromeris sanmartini M.A. Klappenbach, 1970
Glans scabricostata (FOSSIL) R.J.L. Guppy, 1866 †
Glans scabrosa (FOSSIL) R. Tate, 1886 †
Cardita scalaris (FOSSIL) Sowerby, 1825 †
Pleuromeris scitula (FOSSIL) W.H. Dall, 1903 †
Pleuromeris scituloides (FOSSIL) A.A. Olsson, 1914 †
Venericardia semiinflata (FOSSIL) A.E.M. Cossmann& G. Pissarro, 1927 †
Venericardia seminflata (FOSSIL) A.E.M. Cossmann& G. Pissarro, 1927 †
Cardita seminolensis (FOSSIL) A.A. Olsson, 1967 †
Beguina semiorbiculata (C. Linnaeus, 1758)
Cardita senegalensis L.A. Reeve, 1843
Cardita senilis J.B.P.A. Lamarck, 1805
Glyptoactis serricosta (FOSSIL) (A. Heilprin, 1887 †)
Venericardia serrulata (FOSSIL) (G.P. Deshayes †)
Cardita shepardi (FOSSIL) W.H. Dall, 1915 †
Cardita similis (FOSSIL) B. Phillips, 1829 †
Venericardia simillina (FOSSIL) A.A. Olsson, 1930 †
Venericardia simplex (FOSSIL) W.H. Dall, 1903 †
Cyclocardia siogamensis (FOSSIL) S. Nomura, 1957 †
Ainicardita slodkevichi (FOSSIL) A.M. Popov, 1983 †
Venericor smithii (FOSSIL) (T.H. Aldrich, 1894 †)
Strophocardia snatolana (FOSSIL) (Slodkewitsch, 1936 †)
Cardita solida (FOSSIL) R. Tate, 1887 †
Venericardia soriensis (FOSSIL) F.E. Eames, 1951 †
Purpurocardia southlandica (FOSSIL) (Fleming, 1955 †)
Centrocardita soyoae (T. Habe, 1958)