Platyostoma invictus (FOSSIL) (Whidborne, 1891 †)
Platyostoma irrasum (FOSSIL) Fenton & Fenton, 1924 †
Platyostoma janthinoides (FOSSIL) Oehlert, 1877 †
Platyostoma lineata (FOSSIL) T.A. Conrad, 1842 †
Platyostoma lineata callosa (FOSSIL) (J.W. Hall †)
Platyostoma lutheri (FOSSIL) A.H. Clarke, 1904 †
Platyostoma modesta (FOSSIL) W.H. Webster, 1906 †
Platyostoma muitissima (FOSSIL) A.H. Clarke, 1903 †
Platyostoma naticoides (FOSSIL) R. Etheridge jr., 1878 †
Platyostoma niagarensis (FOSSIL) (J.W. Hall, 1852 †)
Platyostoma pastillus (FOSSIL) A.H. Clarke, 1909 †
Platyostoma perceense (FOSSIL) A.H. Clarke, 1908 †
Platyostoma perforatum (FOSSIL) J.J.F. Whiteaves, 1904 †
Platyostoma plebeium (FOSSIL) J.W. Hall, 1876 †
Platyostoma pleurotoma (FOSSIL) J.W. Hall, 1879 †
Platyostoma rotundatum (FOSSIL) A.H. Clarke, 1904 †
Platyostoma rowei (FOSSIL) A.H. Clarke & Swartz,1913 †
Platyostoma speciosum (FOSSIL) (Sedgwick & Murchison,1840 †)
Platyostoma spirata (FOSSIL) (de Sowerby & Murchison,1839 †)
Platyostoma strophius (FOSSIL) J.W. Hall, 1862 †
Platyostoma subglobosa (FOSSIL) Stauffer, 1909 †
Platyostoma triangularis (FOSSIL) Talent & Philip, 1956 †
Platyostoma tumidum (FOSSIL) J.J.F. Whiteaves, 1892 †
Platyostoma turbinata (FOSSIL) (J.W. Hall, 1861 †)
Platyostoma unisulcata (FOSSIL) (T.A. Conrad, 1842 †)
Platyostoma ventricosum (FOSSIL) T.A. Conrad, 1842 †
Platyostoma wortheni (FOSSIL) T.A. Conrad 1842 †
Tubomphalus crenistria (FOSSIL) J. Perner, 1903 †
Tubomphalus elatus (FOSSIL) (J. Perner, 1903 †)
Tubomphalus emergens (FOSSIL) (J. Perner, 1903 †)
Tubomphalus inflatus (FOSSIL) J. Perner, 1907 †
Visitator cylindricum (FOSSIL) Talent & Philip, 1956 †
Visitator extraneus (FOSSIL) J. Perner, 1911 †
Visitator tennesseensis (FOSSIL) (Dunbar, 1920 †)
Platyschisma applanatum (FOSSIL) C.L.F. von Sandberger& C.L.F. von Sandberger, 1855 †
Platyschisma barrisi (FOSSIL) Winchell, 1863 †
Platyschisma cirroides (FOSSIL) F. McCoy, 1844 †
Platyschisma depressa (FOSSIL) Weller, 1900 †
Platyschisma depressum (FOSSIL) J.B.M. Dana, 1847 †
Platyschisma helicoides (FOSSIL) (J. de C. Sowerby,1826 †)
Platyschisma infima (FOSSIL) J. Perner, 1903 †
Platyschisma laudoni (FOSSIL) Rollins, 1975 †
Platyschisma lingua (FOSSIL) E.K. Yoo, 1994 †
Platyschisma missouriensis (FOSSIL) Weller, 1899 †