Diplozone retusa (FOSSIL) J. Perner, 1907 †
Murchisonia reverdyi (FOSSIL) Oehlert, 1877 †
Hormotoma robusta (FOSSIL) J. Donald, 1902 †
Catazone robustula (FOSSIL) J. Perner, 1907 †
Plethospira rotunda (FOSSIL) Flower, 1968 †
Hormotoma rotundivolvis (FOSSIL) Roy, 1941 †
Hormotoma rudis (FOSSIL) d''Eichwald, 1860 †
Cyrtostropha salteri (FOSSIL) (Ulrich & Scofield,1897 †)
Murchisonia sandbergeri (FOSSIL) Paeckelmann, 1922 †
Murchisonia sandbergi (FOSSIL) Paeckelmann, 1922 †
Cyrtostropha scitula (FOSSIL) J. Donald, 1902 †
Hormotoma scrobiculata (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Cyrtostropha sculpta (FOSSIL) J. Perner, 1907 †
Murchisonia selenalta (FOSSIL) Heidelberger, 2001 †
Murchisonia sera (FOSSIL) Böhm, 1895 †
Brilonella serpens (FOSSIL) (Kayser, 1872 †)
Parahormotomina sibertae (FOSSIL) Blodgett & al., 1999 †
Murchisonia sibleyensis (FOSSIL) E.G. Linsley, 1968 †
Hormotoma similis (FOSSIL) Donald †
Murchisonia similis (FOSSIL) Trenkner, 1868 †
Hormotoma simplex (FOSSIL) Wilson, 1932 †
Murchisonia simplex (FOSSIL) McCoy †
Cibecuia sinelnikovae (FOSSIL) Mazaev, 2002 †
Murchisonia sosiensis (FOSSIL) C. Gemmellaro, 1889 †
Murchisonia sphaerulata (FOSSIL) J. Donald, 1887 †
Wuxuanella spinacavus (FOSSIL) (Heidelberger, 2001 †)
Murchisonia steltenbergensis (FOSSIL) Heidelberger & Koch,2005 †
Coelocaulus strebloceras (FOSSIL) (A.H. Clarke, 1907 †)
Aclisina striatula (FOSSIL) (de Koninck, 1844 †)
Hormotoma striatula (FOSSIL) Longst, 1924 †
Catazone styloidea (FOSSIL) J. Perner, 1907 †
Hormotoma subangulata (FOSSIL) Ulrich & Scofield, 1897 †
Murchisonia subcarinata (FOSSIL) Sherzer & A.W. Grabau,1910 †
Cheilotoma subgranulata (FOSSIL) (Klipstein, 1843 †)
Murchisonia subornata (FOSSIL) de Koninck, 1883 †