-
Straparollus acuminatus
Frýda, 1998 † (FOSSIL)
-
Euomphalus acuticosta
C.L.F. von Sandberger & C.L.F. von Sandberger, 1855 † (FOSSIL)
-
Euomphalus acutus
Sowerby, 1818 † (FOSSIL)
-
Straparollus aequalis
Sowerby, 1815 † (FOSSIL)
-
Straparollus (Philoxene) alacer
J. Perner, 1903 † (FOSSIL)
-
Euomphalus alaskensis
E.L. Yochelson & Dutro, 1960 † (FOSSIL)
-
Mastigospira alata
(J.J.F. Whiteaves, 1892 †) (FOSSIL)
-
Poleumita alata
(Lindström, 1884 †) (FOSSIL)
-
Euomphalopterus alatus
(Wahlenberg, 1821 †) (FOSSIL)
-
Euomphalopterus aliger
J. Perner, 1903 † (FOSSIL)
-
Straparollus ammon
White & R.P. Whitfield, 1862 † (FOSSIL)
-
Straparollus ammonitiformis
R. Etheridge jr., 1902 † (FOSSIL)
-
Poleumita anabarica
Kurushin, 1986 † (FOSSIL)
-
Euomphalus angularis
Weller, 1900 † (FOSSIL)
-
Straparollus annulatus
J.J.F. Whiteaves, 1892 † (FOSSIL)
-
Euomphalus anticostiensis
Twenhofel, 1928 † (FOSSIL)
-
Euomphalopterus apedalensis
Pitcher, 1939 † (FOSSIL)
-
Euomphalus araneifer
Whidborne, 1892 † (FOSSIL)
-
Euomphalus archiaci
G.A. Goldfuss, 1844 † (FOSSIL)
-
Leptomphalus arcturus
Yancey, 1969 † (FOSSIL)
-
Straparollus (Philoxene) argutus
Fenton & Fenton, 1924 † (FOSSIL)
-
Euomphalus articulatus
G.A. Goldfuss, 1844 † (FOSSIL)
-
Euomphalus asanoi
T. Kase, 1988 † (FOSSIL)
-
Hystricoceras astraciformis
(Lindström, 1884 †) (FOSSIL)
-
Hystricoceras astraliformis
(Lindström, 1884 †) (FOSSIL)
-
Straparollus ater
Spitz, 1907 † (FOSSIL)
-
Pentagonodiscus augustus
Wendt, 1968 † (FOSSIL)
-
Straparollus australis
P.A. Maxwell, 1961 † (FOSSIL)
-
Euomphalus basinodosus
Kirchner, 1915 † (FOSSIL)
-
Leptomphalus besselensis
Dickins, 1963 † (FOSSIL)
-
Euomphalus biarmatus
Klipstein, 1843 † (FOSSIL)
-
Straparollus bicavatus
Spriestersbach, 1942 † (FOSSIL)
-
Spinicharybdis billingsi
Rohr & A. Packard, 1982 † (FOSSIL)
-
Euomphalus (Woehrmannia) boehmi
E.A.L. Kittl, 1899 † (FOSSIL)
-
Straparollus bohemicus
Barrande in J. Perner, 1907 † (FOSSIL)
-
Spinicharybdis boucoti
Rohr & al., 2008 † (FOSSIL)
-
Straparollus brevis
E.K. Yoo, 1994 † (FOSSIL)
-
Euomphalus brooksensis
E.L. Yochelson & Dutro, 1960 † (FOSSIL)
-
Amphiscapha browni
(A. Thomas, 1930 †) (FOSSIL)
-
Euomphalus bundtzeni
Blodgett, 1992 † (FOSSIL)
-
Nummocalcar bussoni
Cox, 1969 † (FOSSIL)
-
Straparollus (Philoxene) caementarius
Blodgett & Johnson, 1992 † (FOSSIL)
-
Amphiscapha calix
W.J. Gordon & E.L. Yochelson, 1975 † (FOSSIL)
-
Euomphalus (Schizostoma) calyx
(B. Phillips, 1836 †) (FOSSIL)
-
Spinicharybdis canteriata
Rohr & A. Packard, 1982 † (FOSSIL)
-
Euomphalus carbonarius
Sowerby, 1844 † (FOSSIL)
-
Euomphalus catilliformis
de Koninck, 1881 † (FOSSIL)
-
Amphiscapha catilloides
(T.A. Conrad, 1842 †) (FOSSIL)
-
Euomphalus catillus
(Martin, 1793 †) (FOSSIL)
-
Euomphalus cera
R. Etheridge jr., 1917 † (FOSSIL)
-
Goldfussoceras circinalis
(G.A. Goldfuss, 1844 †) (FOSSIL)
-
Euomphalopterus cirrhosa
(Lindström, 1884 †) (FOSSIL)
-
Euomphalus (Schizostoma) cirridioides
E.A.L. Kittl, 1894 † (FOSSIL)
-
Straparollus clymenioides
J.W. Hall, 1860 † (FOSSIL)
-
Straparollus complanans
(J. Perner, 1903 †) (FOSSIL)
-
Poleumita conferta
Lamont † (FOSSIL)
-
Pleuronotus confusus
J. Perner, 1903 † (FOSSIL)
-
Euomphalus conradi
J.W. Hall, 1861 † (FOSSIL)
-
Rhabdotocochlis conveximarginatus
Zhu, 1995 † (FOSSIL)
-
Nevadaspira cooperi
E.L. Yochelson, 1971 † (FOSSIL)
-
Euomphalus cornudanus
Shumard, 1859 † (FOSSIL)
-
Euomphalus coroniferus
de Koninck, 1881 † (FOSSIL)
-
Euomphalus (Schizostoma) costata
Münster, 1841 † (FOSSIL)
-
Euomphalus costellatus
(McCoy) † (FOSSIL)
-
Straparollus cottrelli
P.D. Montfort 1810 † (FOSSIL)
-
Euomphalus crateriformis
Koninck † (FOSSIL)
-
Poleumita crenulata
(J.J.F. Whiteaves, 1884 †) (FOSSIL)
-
Straparollus crenulata
P.D. Montfort 1810 † (FOSSIL)
-
Alaionema crenulatum
(F.B. Meek, 1871 †) (FOSSIL)
-
Phanerotinus cristatus
(B. Phillips, 1836 †) (FOSSIL)
-
Euomphalus crotalostomus
F. McCoy, 1844 † (FOSSIL)
-
Straparollus (Philoxene) cyclostomus
(J.W. Hall, 1858 †) (FOSSIL)
-
Planotectus cymbellatus
E.L. Yochelson, 1956 † (FOSSIL)
-
Straparollus daphne
Billings, 1865 † (FOSSIL)
-
Straparollus davidi
Dun & W.H. Benson, 1920 † (FOSSIL)
-
Pleuronotus decewi
(Billings, 1861 †) (FOSSIL)
-
Euomphalus dentatus
Münster, 1841 † (FOSSIL)
-
Euomphalopsis depressa
Stauffer, 1937 † (FOSSIL)
-
Straparollus devonoaltus
Heidelberger & K. Bandel, 1999 † (FOSSIL)
-
Amphiscapha dextrata
E.L. Yochelson, 1956 † (FOSSIL)
-
Straparollus dionysii
P.D. Montfort, 1810 † (FOSSIL)
-
Poleumita discors
(J. de C. Sowerby, 1814 †) (FOSSIL)
-
Poleumita durhamensis
(J.J.F. Whiteaves, 1895 †) (FOSSIL)
-
Euomphalus eboracensis
J.W. Hall 1859 † (FOSSIL)
-
Euomphalus elegans
de Koninck, 1881 † (FOSSIL)
-
Spinicharybdis elora
(Billings, 1865 †) (FOSSIL)
-
Euomphalus equalis
Sowerby, 1815 † (FOSSIL)
-
Sinutropis esthetica
J. Perner, 1903 † (FOSSIL)
-
Euomphalus eurekensis
Walcott, 1884 † (FOSSIL)
-
Straparollus exiguus
Kindle, 1900 † (FOSSIL)
-
Straparollus expectans
J. Perner, 1907 † (FOSSIL)
-
Straparollus explanatus
de Koninck, 1881 † (FOSSIL)
-
Straparollus exsertus
Hudleston † (FOSSIL)
-
Euomphalus fairchildi
A.H. Clarke & Ruedemann, 1903 † (FOSSIL)
-
Euomphalus (Schizostoma) fasciatum
G.A. Goldfuss, 1844 † (FOSSIL)
-
Euomphalus fenestralis
Whidborne, 1892 † (FOSSIL)
-
Straparollus filifora
J. Perner, 1903 † (FOSSIL)
-
Straparollus fimbriatus
Moore † (FOSSIL)
-
Straparollus fragilis
J. Perner, 1903 † (FOSSIL)
-
Straparollus franciscae
Böhm, 1895 † (FOSSIL)
-
Spinicharybdis frenatus
(Lindström, 1884 †) (FOSSIL)
-
Spinicharybdis gasconsensis
(Northrop, 1939 †) (FOSSIL)
-
Amphiscapha gigantea
E.L. Yochelson, 1956 † (FOSSIL)
-
Heteronodosus giganteus
Pan & Zhang, 1983 † (FOSSIL)
-
Discotropis girtyi
E.L. Yochelson, 1956 † (FOSSIL)
-
Euomphalus glabribasis
E.L. Yochelson, 1956 † (FOSSIL)
-
Euomphalus goldfussi
Archiac & Verneuil, 1842 † (FOSSIL)
-
Euomphalopterus gracilis
E.F.R.K. Koken & J. Perner, 1925 † (FOSSIL)
-
Rihamphalus gracilis
(Ríha, 1938 †) (FOSSIL)
-
Euomphalus gradatus
E.F.R.K. Koken, 1896 † (FOSSIL)
-
Poleumita granulosa
(Lindström, 1884 †) (FOSSIL)
-
Linsleyella greggi
(Rohr, 1980 †) (FOSSIL)
-
Poleumita gyrans
(Lindström, 1884 †) (FOSSIL)
-
Poleumita haliburtoni
McLearn, 1924 † (FOSSIL)
-
Straparollus hecale
J.W. Hall, 1876 † (FOSSIL)
-
Straparollus heliciformis
de Koninck, 1881 † (FOSSIL)
-
Euomphalus helicinus
Münster, 1840 † (FOSSIL)
-
Straparollus hippolyta
Billings, 1865 † (FOSSIL)
-
Euomphalus hoffmani
Sowerby 1814 † (FOSSIL)
-
Amphiscapha hollingsworthi
(Knight, 1934 †) (FOSSIL)
-
Acanthonema holopiforme
Sherzer & A.W. Grabau, 1910 † (FOSSIL)
-
Straparollus honoratus
J. Perner, 1903 † (FOSSIL)
-
Poleumita hudsonica
Parks, 1913 † (FOSSIL)
-
Euomphalus illinoisensis
Thein & Nitecki, 1974 † (FOSSIL)
-
Poleumita incarinatus
(Foerste, 1893 †) (FOSSIL)
-
Straparollus incongruens
J. Perner, 1903 † (FOSSIL)
-
Straparollus ineptus
de Koninck, 1881 † (FOSSIL)
-
Straparollus inferus
Lamont † (FOSSIL)
-
Mastigospira ingens
La Rocque, 1949 † (FOSSIL)
-
Pentagonodiscus initiopentagonatus
J. Szabo, 1979 † (FOSSIL)
-
Straparollus inops
J.W. Hall, 1876 † (FOSSIL)
-
Euomphalus intermedia
Sowerby 1814 † (FOSSIL)
-
Mastigospira intermedia
La Rocque, 1949 † (FOSSIL)
-
Amphiscapha intermedius
W.J. Gordon & E.L. Yochelson, 1983 † (FOSSIL)
-
Sinutropis interrumpens
J. Perner, 1903 † (FOSSIL)
-
Euomphalopsis involuta
Ulrich & al., 1931 † (FOSSIL)
-
Biformispira isaacsoni
Rohr, 1980 † (FOSSIL)
-
Biformispira isacsonni
Rohr, 1980 † (FOSSIL)
-
Linsleyella johnsoni
Rohr, 1980 † (FOSSIL)
-
Euomphalus kaibabensis
Chronic, 1952 † (FOSSIL)
-
Cylicioscapha khmeriana
(Mansuy, 1914 †) (FOSSIL)
-
Discotropis klobukowskii
(Mansuy, 1912 †) (FOSSIL)
-
Straparollus kokeni
Spitz, 1907 † (FOSSIL)
-
Euomphalus konobasis
Jeffery & al., 1994 † (FOSSIL)
-
Kiaeromphalus kristianiensis
Peel & E.L. Yochelson, 1976 † (FOSSIL)
-
Spinicharybdis krizi
Rohr & al., 2008 † (FOSSIL)
-
Alaionema kyrgyzensis
Gubanov & al., 1995 † (FOSSIL)
-
Nodeuomphalus labadyei
(d'Archiac & de Verneuil, 1842 †) (FOSSIL)
-
Straparollus (Philoxene) laevis
(d'Archiac & de Verneuil, 1842 †) (FOSSIL)
-
Euomphalus latus
J.W. Hall, 1858 † (FOSSIL)
-
Alaionema laudabilis
(J. Perner, 1903 †) (FOSSIL)
-
Acanthonema laxa
Sherzer & A.W. Grabau, 1910 † (FOSSIL)
-
Straparollus leptoni
Tassell, 1982 † (FOSSIL)
-
Nodeuomphalus leunissi
Heidelberger & K. Bandel, 1999 † (FOSSIL)
-
Tubiconcha leunissi
(Heidelberger, 2001 †) (FOSSIL)
-
Euomphalus levicarinatus
E.L. Yochelson, 1956 † (FOSSIL)
-
Straparollus levigatus
Léveillé, 1835 † (FOSSIL)
-
Euomphalopterus limatoidea
Kindle, 1903 † (FOSSIL)
-
Euomphalopterus liratus
(T.W. Kirk, 1928 †) (FOSSIL)
-
Straparollus lonemountainensis
Blodgett & Johnson, 1992 † (FOSSIL)
-
Cylicioscapha longlingensis
Pan, 1985 † (FOSSIL)
-
Hystricoceras lundgreni
(Lindström, 1884 †) (FOSSIL)
-
Straparollus macromphalus
Winchell, 1863 † (FOSSIL)
-
Haswellia macrothalma
(Haswell †) (FOSSIL)
-
Euomphalopsis magnus
Rohr & al., 2002 † (FOSSIL)
-
Straparollus magnus
Kurushin, 1986 † (FOSSIL)
-
Straparollus mammula
de Koninck, 1881 † (FOSSIL)
-
Euomphalus mapingensis
A.W. Grabau, 1936 † (FOSSIL)
-
Euomphalus marginatiformis
Licharev, 1967 † (FOSSIL)
-
Amphiscapha marginatus
(d'Eichwald, 1860 †) (FOSSIL)
-
Euomphalopterus marklini
(Lindström, 1884 †) (FOSSIL)
-
Poleumita mashkovae
Kurushin, 1986 † (FOSSIL)
-
Eleutherospira medfraensis
Blodgett & Johnson, 1992 † (FOSSIL)
-
Leptomphalus micidus
E.L. Yochelson, 1956 † (FOSSIL)
-
Phanerotinus militaris
(Whidborne, 1892 †) (FOSSIL)
-
Euomphalus minimus
F. McCoy, 1847 † (FOSSIL)
-
Euomphalus minor
Parks, 1915 † (FOSSIL)
-
Fascivalvata minuta
Pan, 1982 † (FOSSIL)
-
Euomphalus mohri
Kirchner, 1915 † (FOSSIL)
-
Euomphalus mongolicus
A.W. Grabau, 1931 † (FOSSIL)
-
Nodeuomphalus moniliferus
(Romanovsky, 1890 †) (FOSSIL)
-
Sinistrispira monticola
(Spitz, 1907 †) (FOSSIL)
-
Straparollus (Philoxene) mopsus
(J.W. Hall, 1868 †) (FOSSIL)
-
Straparollus (Philoxene) mortoni
E.G. Linsley & E.L. Yochelson, 1973 † (FOSSIL)
-
Cylicioscapha multinodosa
Pan, 1983 † (FOSSIL)
-
Straparollus multispina
C.L.F. von Sandberger & C.L.F. von Sandberger, 1855 † (FOSSIL)
-
Phanerotinus mundus
Whidborne, 1892 † (FOSSIL)
-
Amphiscapha muricata
(Knight, 1934 †) (FOSSIL)
-
Poleumita myeri
(G.A. Goldfuss, 1844 †) (FOSSIL)
-
Offleyotrochus naresi
(R. Etheridge jr., 1878 †) (FOSSIL)
-
Euomphalus neapolitanus
Whidborne, 1892 † (FOSSIL)
-
Acanthonema newberryi
(F.B. Meek, 1871 †) (FOSSIL)
-
Euomphalus nitidulus
Angelin & Lindström, 1880 † (FOSSIL)
-
Euomphalus nodocarinatus
J. Wanner, 1922 † (FOSSIL)
-
Euomphalus nodulosus
de Koninck, 1876 † (FOSSIL)
-
Phanerotinus nudus
Sowerby, 1844 † (FOSSIL)
-
Poleumita octavia
(A.V.M.D. D'Orbigny, 1850 †) (FOSSIL)
-
Euomphalus (Schizostoma) oldhami
(Sowerby 1814 †) (FOSSIL)
-
Euomphalus oldhami
Reed, 1944 † (FOSSIL)
-
Straparollus ophirensis
J.W. Hall & R.P. Whitfield, 1877 † (FOSSIL)
-
Rhabdotocochlis ovata
Wang, 1980 † (FOSSIL)
-
Nodeuomphalus paffrathianus
K. Bandel & Frýda, 1998 † (FOSSIL)
-
Euomphalus pancakensis
J.D. Mount, 1973 † (FOSSIL)
-
Devonicornu parvulum
Frýda, 1998 † (FOSSIL)
-
Euomphalus parvulus
Weigner, 1938 † (FOSSIL)
-
Euomphalus parvus
L. Waagen, 1880 † (FOSSIL)
-
Euomphalus patulus
E.F.R.K. Koken & J. Perner, 1925 † (FOSSIL)
-
Straparollus paullulus
E.F.R.K. Koken & J. Perner, 1925 † (FOSSIL)
-
Euomphalus pentangularis
J. de C. Sowerby, 1814 † (FOSSIL)
-
Euomphalus pentangulatus
J. de C. Sowerby, 1814 † (FOSSIL)
-
Straparollus (Philoxene) perlongus
J. Perner, 1903 † (FOSSIL)
-
Straparollus permianus
(King, 1848 †) (FOSSIL)
-
Euomphalus pernodosus
F.B. Meek & A.H. Worthen, 1870 † (FOSSIL)
-
Straparollus (Philoxene) perprofondus
J. Perner, 1903 † (FOSSIL)
-
Euomphalus perspectivus
Swallow, 1863 † (FOSSIL)
-
Amphiscapha peruviana
Chronic, 1949 † (FOSSIL)
-
Euomphalus perversus
d'Orbigny, 1842 † (FOSSIL)
-
Nodeuomphalus peskensis
(Mazaev, 1994 †) (FOSSIL)
-
Straparollus pileopsideus
B. Phillips, 1836 † (FOSSIL)
-
Nodeuomphalus pirochiensis
(Mazaev, 1994 †) (FOSSIL)
-
Straparollus (Philoxene) planiformis
Heidelberger & K. Bandel, 1999 † (FOSSIL)
-
Straparollus planodiscus
J.W. Hall, 1860 † (FOSSIL)
-
Euomphalus planodorsatus
F.B. Meek & A.H. Worthen, 1860 † (FOSSIL)
-
Straparollus planorbiformis
de Koninck, 1881 † (FOSSIL)
-
Centrifugus planorbis
(H.G. Bronn, 1835 †) (FOSSIL)
-
Euomphalus planorbis
d'Archiac & de Verneuil, 1842 † (FOSSIL)
-
Straparollus planus
Heidelberger, 2001 † (FOSSIL)
-
Straparollus (Philoxene) plicatulus
J. Perner, 1903 † (FOSSIL)
-
Euomphalus plummeri
Knight, 1934 † (FOSSIL)
-
Straparollus portlandensis
Fenton & Fenton, 1924 † (FOSSIL)
-
Straparollus (Philoxene) praestans
(J. Perner, 1903 †) (FOSSIL)
-
Euomphalopterus praetextus
Lindström, 1884 † (FOSSIL)
-
Novakopteron pravoslavi
Horný, 2001 † (FOSSIL)
-
Centrifugus procera
(J. Perner, 1907 †) (FOSSIL)
-
Poleumita prosseri
Foerste, 1919 † (FOSSIL)
-
Amphiscapha proxima
E.L. Yochelson, 1956 † (FOSSIL)
-
Discotropis publicus
E.L. Yochelson, 1956 † (FOSSIL)
-
Euomphalus pugilis
B. Phillips, 1836 † (FOSSIL)
-
Euomphalus pugiloides
I. Hayasaka, 1967 † (FOSSIL)
-
Stusakia pulchra
Frýda, 1998 † (FOSSIL)
-
Straparollus pulchrior
Hudleston † (FOSSIL)
-
Leptomphalus pusillus
(L. Waagen, 1880 †) (FOSSIL)
-
Euomphalus qingyanensis
Yin & E.L. Yochelson, 1983 † (FOSSIL)
-
Straparollus quadrivolvis
J.W. Hall, 1856 † (FOSSIL)
-
Euomphalus radiatus
G.A. Goldfuss, 1832 † (FOSSIL)
-
Euomphalopterus recticosta
J. Perner, 1903 † (FOSSIL)
-
Amphiscapha reedsi
(Knight, 1934 †) (FOSSIL)
-
Straparollus (Philoxene) retrorsus
(A. Römer, 1850 †) (FOSSIL)
-
Pentagonodiscus reussii
(J. Von Hauer, 1853 †) (FOSSIL)
-
Euomphalus rotundus
Parks, 1915 † (FOSSIL)
-
Euomphalus rotundus
Wang, 1982 † (FOSSIL)
-
Straparollus rudis
J.W. Hall, 1876 † (FOSSIL)
-
Rhabdotocochlis rugata
Knight, 1933 † (FOSSIL)
-
Poleumita rugosa
(J. de C. Sowerby, 1814 †) (FOSSIL)
-
Straparollus savagei
Knight, 1934 † (FOSSIL)
-
Poleumita scamnata
A.H. Clarke & Ruedemann, 1903 † (FOSSIL)
-
Euomphalus schnurii
d'Archiac & de Verneuil, 1842 † (FOSSIL)
-
Euomphalopterus seductor
J. Perner, 1903 † (FOSSIL)
-
Calzadina segurai
Forner & Valls, 2014 † (FOSSIL)
-
Poleumita semiplanus
J. Perner, 1907 † (FOSSIL)
-
Fletcherviewia septata
Cook, 1993 † (FOSSIL)
-
Straparollus serpenteus
P.D. Montfort 1810 † (FOSSIL)
-
Phanerotinus serpula
(de Koninck, 1843 †) (FOSSIL)
-
Euomphalus serratus
Knight, 1934 † (FOSSIL)
-
Tongweispira sichuanensis
Tong & Erwin, 2001 † (FOSSIL)
-
Euomphalus similis
F.B. Meek & A.H. Worthen, 1862 † (FOSSIL)
-
Saturnotropis simulans
(J. Perner, 1903 †) (FOSSIL)
-
Muirheada simulans
(Salter †) (FOSSIL)
-
Euomphalus simuloides
A.W. Grabau, 1931 † (FOSSIL)
-
Euomphalus sinister
Tolmachoff, 1930 † (FOSSIL)
-
Eleutherospira sinistralis
Blodgett & Johnson, 1992 † (FOSSIL)
-
Straparollus (Philoxene) sodalis
J. Perner, 1903 † (FOSSIL)
-
Straparollus spergenensis
J.W. Hall, 1856 † (FOSSIL)
-
Linsleyella spinosa
(Salter, 1859 †) (FOSSIL)
-
Hystricoceras spinosum
Jahn, 1894 † (FOSSIL)
-
Sinutropis spiralis
(Rohr, 1988 †) (FOSSIL)
-
Eleutherospira steltenbergensis
Heidelberger & Koch, 2005 † (FOSSIL)
-
Euomphalus studeri
Klipstein, 1843 † (FOSSIL)
-
Euomphalopterus subcarinatus
Lindström, 1884 † (FOSSIL)
-
Leptomphalus subcircularis
(Mansuy, 1913 †) (FOSSIL)
-
Straparollus subdionysii
P.A. Maxwell, 1961 † (FOSSIL)
-
Euomphalus subplanus
J.W. Hall, 1852 † (FOSSIL)
-
Amphiscapha subquadrata
(F.B. Meek & A.H. Worthen, 1870 †) (FOSSIL)
-
Amphiscapha subrugosa
(F.B. Meek & A.H. Worthen, 1873 †) (FOSSIL)
-
Amphiscapha subsulcata
(Knight, 1934 †) (FOSSIL)
-
Euomphalus subtrigonalis
Whidborne, 1891 † (FOSSIL)
-
Anisostoma suessi
(M. Hörnes, 1855 †) (FOSSIL)
-
Euomphalus sulcatus
Kayser, 1873 † (FOSSIL)
-
Discotropis sulcifer
(Girty, 1909 †) (FOSSIL)
-
Euomphalus sumatrensis
F.A. Roemer, 1880 † (FOSSIL)
-
Straparollus tabulatus
(Phillips) † (FOSSIL)
-
Euomphalus telleri
E.A.L. Kittl, 1891 † (FOSSIL)
-
Sinutropis tenera
J. Perner, 1903 † (FOSSIL)
-
Euomphalus tenuistriatus
Zhu, 1995 † (FOSSIL)
-
Cylicioscapha texana
E.L. Yochelson, 1956 † (FOSSIL)
-
Pleuronotus tioga
(J.W. Hall, 1876 †) (FOSSIL)
-
Euomphalopterus togata
(Lindström, 1884 †) (FOSSIL)
-
Euomphalus trigonalis
G.A. Goldfuss, 1844 † (FOSSIL)
-
Euomphalus triliris
Easton, 1943 † (FOSSIL)
-
Euomphalus tuberculatus
Tolmachoff, 1930 † (FOSSIL)
-
Sinutropis tubus
(Lindström, 1884 †) (FOSSIL)
-
Rhabdotocochlis turgida
E.K. Yoo, 1994 † (FOSSIL)
-
Discotropis turritus
(Delpey, 1941 †) (FOSSIL)
-
Straparollus turritus
C.L.F. von Sandberger & C.L.F. von Sandberger, 1855 † (FOSSIL)
-
Euomphalus uedai
Murata, 1969 † (FOSSIL)
-
Straparollus ultimus
E.A.L. Kittl, 1891 † (FOSSIL)
-
Euomphalus umbilicatus
F.B. Meek & A.H. Worthen, 1860 † (FOSSIL)
-
Kiaeromphalus undiferus
(A. Schmidt, 1858 †) (FOSSIL)
-
Euomphalopterus undulans
(Lindström, 1884 †) (FOSSIL)
-
Amphiscapha uralensis
Licharev, 1975 † (FOSSIL)
-
Euomphalus utahensis
J.W. Hall & R.P. Whitfield, 1877 † (FOSSIL)
-
Euomphalopterus valeria
(Billings, 1865 †) (FOSSIL)
-
Euomphalus variabilis
Jeffery & al., 1994 † (FOSSIL)
-
Nummocalcar varicosum
(Morris & Lycett) † (FOSSIL)
-
Euomphalopterus velaris
(J.J.F. Whiteaves, 1895 †) (FOSSIL)
-
Zardinihelix venustus
(Münster, 1841 †) (FOSSIL)
-
Straparollus vermis
Whidborne, 1896 † (FOSSIL)
-
Euomphalus verneuili
G.A. Goldfuss, 1844 † (FOSSIL)
-
Poleumita vernonensis
Fisher, 1957 † (FOSSIL)
-
Elkoceras volborthi
J. Lintz & Lohr, 1958 † (FOSSIL)
-
Straparollus volnovachensis
Zernetskaya, 1967 † (FOSSIL)
-
Siskiyouspira vostokovae
Rohr, 1980 † (FOSSIL)
-
Poleumita walmstedti
(Lindström, 1884 †) (FOSSIL)
-
Mastigospira weberae
Blodgett, 1992 † (FOSSIL)
-
Cylicioscapha williamsi
E.L. Yochelson, 1956 † (FOSSIL)
-
Spinicharybdis wilsoni
Rohr & A. Packard, 1982 † (FOSSIL)
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