Tremanotus angustata (FOSSIL) (J.W. Hall, 1852 †)
Bucania aotii (FOSSIL) (Kobayashi, 1958 †)
Salpingostoma attavum (FOSSIL) J. Perner, 1903 †
Tremanotus aymestriensis (FOSSIL) (Murchison, 1839 †)
Bucania batchtownensis (FOSSIL) Bradley, 1930 †
Bucania bellapuncta (FOSSIL) J.W. Hall, 1852 †
Phragmolites bellulus (FOSSIL) Ulrich & Scofield, 1897 †
Boiotremus beraunensis (FOSSIL) (J. Perner, 1903 †)
Salpingostoma billingsi (FOSSIL) Wilson, 1951 †
Grandostoma bohemica (FOSSIL) (J. Perner, 1903 †)
Salpingostoma boreale (FOSSIL) J.J.F. Whiteaves, 1904 †
Patellostium branneri (FOSSIL) Weller, 1897 †
Patellostium britannicum (FOSSIL) Amler & Heidelberger,2003 †
Salpingostoma buelli (FOSSIL) R.P. Whitfield, 1878 †
Boiotremus caelatus (FOSSIL) (J. Perner, 1903 †)
Bucanopsina calypso (FOSSIL) (J. Perner, 1903 †)
Phragmolites cambrensis (FOSSIL) D.E. Harper, 1947 †
Salpingostoma canadensis (FOSSIL) (Billings, 1866 †)
Megalomphala carinata (FOSSIL) Ebbestad, 1999 †
Salpingostoma carnatum (FOSSIL) Ebbestad, 1999 †
Salpingostoma carrolense (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Grandostoma caudatum (FOSSIL) (J. Perner, 1903 †)
Phragmolites cellulosus (FOSSIL) Ulrich & Scofield, 1897 †
Bucania champlainensis (FOSSIL) R.P. Whitfield, 1897 †
Tremanotus chicagoensis (FOSSIL) (McChesney, 1859 †)
Tremanotus civis (FOSSIL) (J. Perner, 1903 †)
Salpingostoma compressum (FOSSIL) (d''Eichwald, 1840 †)
Phragmolites compressus (FOSSIL) T.A. Conrad, 1838 †
Tremanotus compressus (FOSSIL) Lindström, 1884 †
Megalomphala contorta (FOSSIL) (d''Eichwald, 1856 †)
Bucania cornu (FOSSIL) E.F.R.K. Koken, 1897 †
Kokenospira costalis (FOSSIL) (Ulrich & Scofield,1897 †)
Bucania crassa (FOSSIL) Ulrich & Scofield, 1897 †
Megalomphala crassa (FOSSIL) (E.F.R.K. Koken, 1896 †)
Megalomphala crassiuscula (FOSSIL) E.F.R.K. Koken, 1897 †