Leioceras bifidatum (FOSSIL) (Buckman, 1899 †)
Leioceras carinifera (FOSSIL) (Buckman, 1899 †)
Leioceras cariniferum (FOSSIL) Buckman †
Leioceras comptocostosum (FOSSIL) D.M. Chandler& P. Callomon, 2009 †
Leioceras comptum (FOSSIL) (Reinecke, 1818 †)
Leioceras gracile (FOSSIL) Buckman †
Leioceras gracile (FOSSIL) (Buckman, 1899 †)
Leioceras grave (FOSSIL) (Buckman, 1899 †)
Leioceras lineatum (FOSSIL) (Buckman, 1899 †)
Leioceras opalinum (FOSSIL) (Reinecke, 1818 †)
Leioceras partitum (FOSSIL) (Buckman, 1899 †)
Leioceras plectile (FOSSIL) (Buckman, 1899 †)
Leioceras plicatellum (FOSSIL) (Buckman, 1899 †)
Leioceras plicatellum (FOSSIL) Buckman †
Leioceras striatum (FOSSIL) (Buckman, 1899 †)
Leioceras subcostosum (FOSSIL) (Buckman, 1899 †)
Leioceras substriatum (FOSSIL) Buckman †
Leioceras thompsoni (FOSSIL) (Buckman, 1899 †)
Leioceras undulatum (FOSSIL) (Buckman, 1899 †)
Staufenia sehndensis (FOSSIL) Hoffmann, 1913 †