Euomphalus minimus (FOSSIL) F. McCoy, 1847 †
Euomphalus minor (FOSSIL) Parks, 1915 †
Fascivalvata minuta (FOSSIL) Pan, 1982 †
Euomphalus mohri (FOSSIL) Kirchner, 1915 †
Euomphalus mongolicus (FOSSIL) A.W. Grabau, 1931 †
Nodeuomphalus moniliferus (FOSSIL) (Romanovsky, 1890 †)
Sinistrispira monticola (FOSSIL) (Spitz, 1907 †)
Philoxene mopsus (FOSSIL) (J.W. Hall, 1868 †)
Philoxene mortoni (FOSSIL) E.G. Linsley& E.L. Yochelson, 1973 †
Cylicioscapha multinodosa (FOSSIL) Pan, 1983 †
Straparollus multispina (FOSSIL) C.L.F. von Sandberger& C.L.F. von Sandberger, 1855 †
Phanerotinus mundus (FOSSIL) Whidborne, 1892 †
Amphiscapha muricata (FOSSIL) (Knight, 1934 †)
Poleumita myeri (FOSSIL) (G.A. Goldfuss, 1844 †)
Offleyotrochus naresi (FOSSIL) (R. Etheridge jr.,1878 †)
Euomphalus neapolitanus (FOSSIL) Whidborne, 1892 †
Acanthonema newberryi (FOSSIL) (F.B. Meek, 1871 †)
Euomphalus nitidulus (FOSSIL) Angelin & Lindström,1880 †
Euomphalus nodocarinatus (FOSSIL) J. Wanner, 1922 †
Euomphalus nodulosus (FOSSIL) de Koninck, 1876 †
Phanerotinus nudus (FOSSIL) Sowerby, 1844 †
Poleumita octavia (FOSSIL) (A.V.M.D. D'Orbigny,1850 †)
Poleumita octavia minuta (FOSSIL) Pitcher †
Schizostoma oldhami (FOSSIL) (Sowerby 1814 †)
Euomphalus oldhami (FOSSIL) Reed, 1944 †
Straparollus ophirensis (FOSSIL) J.W. Hall& R.P. Whitfield, 1877 †
Rhabdotocochlis ovata (FOSSIL) Wang, 1980 †
Nodeuomphalus paffrathianus (FOSSIL) K. Bandel & Frýda, 1998 †
Euomphalus pancakensis (FOSSIL) J.D. Mount, 1973 †
Devonicornu parvulum (FOSSIL) Frýda, 1998 †
Euomphalus parvulus (FOSSIL) Weigner, 1938 †
Euomphalus parvus (FOSSIL) L. Waagen, 1880 †
Euomphalus patulus (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Straparollus paullulus (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Euomphalus pentangularis (FOSSIL) J. de C. Sowerby, 1814 †