Naticonoda prieuri (FOSSIL) Heidelberger, 2001 †
Platyceras priscum (FOSSIL) G.A. Goldfuss, 1844 †
Keeneia pristina (FOSSIL) P.A. Maxwell 1964 †
Platyceras producti (FOSSIL) Frech, 1911 †
Praenatica proeva (FOSSIL) J. Perner, 1903 †
Ploconema protendens (FOSSIL) J. Perner, 1903 †
Spinyplatyceras pugnus (FOSSIL) (A.H. Clarke, 1904 †)
Platyceras pulcherrimum (FOSSIL) Rowley, 1908 †
Turbonellina pulchra (FOSSIL) de Koninck, 1881 †
Cyclonema pyramidatum (FOSSIL) M.J. James †
Spiranodus quadrilineatus (FOSSIL) Heidelberger, 2001 †
Spiranodus quinquecinctus (FOSSIL) (G.A. Goldfuss, 1844 †)
Rhineoderma radula (FOSSIL) (de Koninck, 1844 †)
Platyceras reflexum (FOSSIL) J.W. Hall, 1859 †
Cyclonema repertum (FOSSIL) Reed †
Platyceras rete (FOSSIL) Lamont †
Platyceras richtum (FOSSIL) J.W. Hall, 1879 †
Platyceras rictum (FOSSIL) J.W. Hall, 1862 †
Platyceras rictum spinosum (FOSSIL) Kindle, 1900 †
Platyceras robustum (FOSSIL) J.W. Hall, 1859 †
Cancellator rohri (FOSSIL) Frýda & Manda, 1997 †
Paraplatyschisma rotunda (FOSSIL) (Etheridge, 1872 †)
Platyostoma rotundatum (FOSSIL) A.H. Clarke, 1904 †
Platyschisma rotundatum (FOSSIL) Morris, 1845 †
Platyostoma rowei (FOSSIL) A.H. Clarke & Swartz,1913 †
Cyclonema rupestre (FOSSIL) (K.E.I. von Eichwald,1856 †)
Strophostylus sargalensis (FOSSIL) Reed, 1944 †
Lotzia schaeferkalki (FOSSIL) Heidelberger, 2001 †
Ptychospirina senaria (FOSSIL) J. Perner, 1907 †
Turbomaria sepulta (FOSSIL) (J. Perner, 1903 †)
Cyclonema servus (FOSSIL) (J. Perner, 1903 †)
Platyceras sigmoidale (FOSSIL) B. Phillips, 1841 †
Naticonema similare (FOSSIL) J. Perner, 1903 †
Naticonema similaris (FOSSIL) J. Perner, 1903 †
Cyclonema simulans (FOSSIL) Ulrich & Scofield, 1897 †