Isorthoceras albersi (FOSSIL) (Miller & M.J. Faber,1894 †)
Gorbyoceras alternestriatum (FOSSIL) (E. Strand, 1934 †)
Isorthoceras angelini (FOSSIL) Kröger, 2013 †
Monomuchites annularis (FOSSIL) M.A. Frey, 1995 †
Stereospyroceras champlainense (FOSSIL) Flower, 1955 †
Treptoceras cincinnatiensis (FOSSIL) (Miller, 1875 †)
Gorbyoceras clathroannulatum (FOSSIL) (F.A. Roemer, 1861 †)
Stereospyroceras clintoni (FOSSIL) (Miller, 1877 †)
Monomuchites costalis (FOSSIL) Wilson, 1961 †
Isorthoceras curvilineatum (FOSSIL) Kröger, 2013 †
Mesnaquaceras curviseptatum (FOSSIL) Flower, 1955 †
Isorthoceras dalecarlense (FOSSIL) Kröger & al., 2011 †
Gangshanoceras densum (FOSSIL) Zou, 1988 †
Treptoceras duseri (FOSSIL) (J.W. Hall& R.P. Whitfield, 1875 †)
Orthonybyoceras dyeri (FOSSIL) (Miller, 1875 †)
Palaeocycloceras eichwaldi (FOSSIL) I. Balashov, 1968 †
Isorthoceras elongatocinctum (FOSSIL) (Portlock, 1843 †)
Treptoceras fosteri (FOSSIL) (Miller, 1875 †)
Ephippiorthoceras frognoeyense (FOSSIL) E. Strand, 1933 †
Ephippiorthoceras frognoyense (FOSSIL) E. Strand, 1934 †
Gorbyoceras gorbyi (FOSSIL) (Miller, 1894 †)
Gorbyoceras gracile (FOSSIL) (Portlock, 1843 †)
Gangshanoceras guichinense (FOSSIL) Ying, 1989 †
Gorbyoceras hammelli (FOSSIL) (Foerste, 1910 †)
Isorthoceras heroyense (FOSSIL) (E. Strand, 1934 †)
Tofangoceras irregulare (FOSSIL) T. Kobayashi, 1928 †
Isorthoceras junceum (FOSSIL) (I. Balashov, 1956 †)
Gangshanoceras jurongense (FOSSIL) Zou, 1988 †
Cyrtactinoceras mitsuishii (FOSSIL) T. Kobayashi, 1928 †
Proteoceras moniliforme (FOSSIL) (J.W. Hall, 1847 †)
Monomuchites obliquum (FOSSIL) M.A. Frey, 1995 †
Transorthoceras osmundsbergense (FOSSIL) Kröger & al., 2011 †
Tofangoceras pauciannulatum (FOSSIL) T. Kobayashi, 1928 †
Proteoceras perkinsi (FOSSIL) (Ruedemann, 1906 †)
Ephippiorthoceras plicatuloides (FOSSIL) E. Strand, 1934 †