Tibichoanoceras abditum (FOSSIL) (I. Balashov & Kiselev,1968 †)
Orthoceras aciculare (FOSSIL) J. Brown, 1860 †
Orthoceras agassizi (FOSSIL) Barrande, 1866 †
Orthocycloceras alayense (FOSSIL) I.S. Barskov, 1972 †
Orthoceras anellus (FOSSIL) T.A. Conrad, 1843 †
Orthoceras angustum (FOSSIL) Holzapfel, 1895 †
Orthoceras annulata (FOSSIL) (Sowerby, 1818 †)
Orthoceras araneosum (FOSSIL) Barrande, 1866 †
Oxfordoceras atticus (FOSSIL) (Billings, 1865 †)
Trematoceras austriacum (FOSSIL) (Mojsisovics, 1873 †)
Orthoceras baculiforme (FOSSIL) Salter †
Orthoceras barrandei (FOSSIL) Salter †
Orthoceras barumense (FOSSIL) Whidborne †
Orthoceras bifoveatum (FOSSIL) Noetling, 1879 †
Orthoceras bilineatum (FOSSIL) J.W. Hall †
Oxfordoceras billingsi (FOSSIL) Ulrich & al., 1944 †
Orthoceras bisignatum (FOSSIL) Barrande, 1877 †
Orthoceras blakei (FOSSIL) W.M. Gabb, 1864 †
Infundibuloceras brevimira (FOSSIL) Klug & al., 2008 †
Orthoceras burgense (FOSSIL) C. Gemmellaro, 1889 †
Palorthoceras buttsi (FOSSIL) (Flower, 1962 †)
Orthoceras calamus (FOSSIL) de Koninck †
Trematoceras celticum (FOSSIL) (Mojsisovics, 1873 †)
Orthoceras champernowni (FOSSIL) Whidborne †
Orthoceras cuvieri (FOSSIL) Barrande, 1868 †
Orthoceras decipiens (FOSSIL) Barrande, 1866 †
Merocycloceras declivis (FOSSIL) Ristedt, 1968 †
Orthoceras decrescens (FOSSIL) de Koninck, 1863 †
Orthoceras docens (FOSSIL) Barrande, 1868 †
Orthoceras dominans (FOSSIL) A. De Gregorio, 1930 †
Kopaninoceras dorsatoides (FOSSIL) Kröger, 2008 †
Trematoceras dubium (FOSSIL) (J. Von Hauer, 1847 †)
Trematoceras elegans (FOSSIL) (Münster, 1841 †)
Orthoceras elegantulum (FOSSIL) C. Gemmellaro, 1889 †
Copiceras erectum (FOSSIL) Ulrich & al., 1944 †