Acrosterigma praecedens (FOSSIL) (Mayer 1858) †
Pseudocatillus praecoloratus (FOSSIL) Ebersin, 1967 †
Pseudocatillus praehellesponticus (FOSSIL) Ebersin, 1967 †
Cardium praepapillosum (FOSSIL) Baldi †
Didacna praetrigonoides (FOSSIL) Nalivkin & Anissimoff,1914 †
Acrosterigma pristipleura (W.H. Dall, 1901)
Laevicardium pristis (J.B.G.M. Bory De Saint-Vincent, 1827)
Nemocardium probatum (T. Iredale, 1927)
Mexicardia procerum (G.B. I Sowerby, 1833)
Mexicardia procerum panamense (G.B. I Sowerby, 1833)
Granocardium productum (FOSSIL) (J. de C. Sowerby,1832 †)
Didacna profundicola B.M. Logvinenko& Y.I. Starobogatov, 1966
Acrosterigma profundum E. Vidal, 1999
Trachycardium propeciliare (FOSSIL) W.H. Dall, 1900 †
Keenocardium prosogyratum (FOSSIL) (A.I. Kafanov, 1994 †)
Americardia protoaliculum (FOSSIL) H.G. Richards, 1953 †
Trachycardium protosubrugosum (FOSSIL) Noetling, 1901 †
Didacna protracta (K.E.I. von Eichwald,1829)
Cardium proximum (FOSSIL) Dufour, 1881 †
Pseudocatillus pseudocatillus (FOSSIL) (Barbot de Marny, 1869 †)
Monodacna pseudocolorata (FOSSIL) Büyükmeriç & Wesselingh,2016 †
Clinocardium pseudofastosum (FOSSIL) (S. Nomura, 1937 †)
Pseudocatillus pseudolaticostatus (FOSSIL) Chelidze, 1975 †
Maoricardium pseudolatum R.P.A. Voskuil& W.J.H. Onverwagt, 1991
Maoricardium pseudolima (J.B.P.A. Lamarck, 1819)
Hedecardium pseudomagnum (FOSSIL) (McCoy, 1877 †)
Europicardium pseudomulticostatum (FOSSIL) (Zhizhchenko, 1934 †)
Pseudocatillus pseudosubdentatus (FOSSIL) Chelidze, 1975 †
Laevicardium puchlense (FOSSIL) Ilyina, 1949 †
Dallocardia puebloense (FOSSIL) (Anderson, 1929 †)
Trachycardium puelchum (FOSSIL) (Sowerby, 1846 †)
Tamilicardia pulchella (FOSSIL) Chiplonkar & Tapaswi 1976 †,
Pratulum pulchellum (J.E. Gray, 1843)
Cardium pulsatum (FOSSIL) Whidborne †
Acrosterigma punctolineatum J.M. Healy & K.L. Lamprell,1992