Mariacolpus plebeia (FOSSIL) (T. Say, 1824 †)
Mariacolpus plebeia (FOSSIL) Ward, 1992 †
Palmerella pleboides (FOSSIL) (Vaughan, 1895 †)
Turritella polonica (FOSSIL) (F. Schröder, 1995 †)
Anguillospira polygona (FOSSIL) (G.P. Deshayes, 1861 †)
Anguillospira polygona corrugata (FOSSIL) (A.E.M. Cossmann, 1888 †)
Turritella polysticha (FOSSIL) H.B. Stenzel & H. Turner,1940 †
Turritella pondicherriensis E. Forbes, 1846
Turritella pontoni (FOSSIL) (W.C. Mansfield, 1939 †)
Vermicularia porrecta (FOSSIL) G.P. Deshayes, 1861 †
Turritella portaroi (FOSSIL) Lisson, 1925 †
Turritella praecessus (FOSSIL) J.L.M. Defrance, 1828 †
Turritella praelonga (FOSSIL) Hislop, 1859 †
Protoma praetermissa (P. Dautzenberg, 1912)
Tachyrhynchus pratomus W.H. Dall, 1919
Turritella premimetes (FOSSIL) McNeil, 1984 †
Turritella prenuncia (FOSSIL) E.M. Spieker, 1922 †
Actaeonema prisca (FOSSIL) T.A. Conrad, 1865 †
Stiracolpus procellosus (FOSSIL) (J. Marwick, 1931 †)
Turritella producta (FOSSIL) Martin, 1922 †
Stiracolpus propagoda (FOSSIL) (C.R. Laws, 1940 †)
Protoma proto (FOSSIL) (B. de Basterot, 1825 †)
Turritella pseudobandongensis (FOSSIL) E.W. Vredenburg, 1928 †
Turritella pseudoelegans (FOSSIL) A.E.M. Cossmann, 1923 †
Turritella pseudogradata (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1921 †
Turritella pseudograta (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1921 †
Turritella pseudohauthalli (FOSSIL) Rossi de Garcia& J.L. Levy, 1977 †
Turritella pseudosuturalis (FOSSIL) A.V.M.D. D'Orbigny,1852 †
Turritella pseudotethis (FOSSIL) E.W. Vredenburg, 1928 †
Cristispira pugetensis (FOSSIL) E.C. Allison, 1965 †
Zeacolpus pukeuriensis (FOSSIL) J. Marwick, 1934 †
Mesalia pumila (FOSSIL) W.M. Gabb, 1860 †
Turritella punjabensis (FOSSIL) F.E. Eames, 1952 †
Turritella pythagoraica (FOSSIL) Hilber, 1879 †
Turritella quadrangulonodosa (FOSSIL) Klipstein, 1843 †