Tibichoanoceras abditum (FOSSIL) (I. Balashov& Kiselev, 1968 †)
Orthoceras aciculare (FOSSIL) J. Brown, 1860 † UK, Yorkshire
Orthoceras agassizi (FOSSIL) Barrande, 1866 †
Orthocycloceras alayense (FOSSIL) I.S. Barskov, 1972 †
Orthoceras anellus (FOSSIL) T.A. Conrad, 1843 † Minnesota
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 †) Austria, Oberösterreich, Gmunden
Orthoceras baculiforme (FOSSIL) Salter † UK, England, Westmorland
Orthoceras barrandei (FOSSIL) Salter † UK, England, Herefordshire
Orthoceras barumense (FOSSIL) Whidborne † UK, Devon
Orthoceras bifoveatum (FOSSIL) Noetling, 1879 † Poland
Orthoceras bilineatum (FOSSIL) J.W. Hall † Minnesota
Oxfordoceras billingsi (FOSSIL) Ulrich & al., 1944 †
Orthoceras bisignatum (FOSSIL) Barrande, 1877 †
Orthoceras blakei (FOSSIL) W.M. Gabb, 1864 † USA, Nevada, Pershing
Infundibuloceras brevimira (FOSSIL) Klug & al., 2008 † Morocco, Tafilalet
Orthoceras burgense (FOSSIL) C. Gemmellaro, 1889 † Italy, Sicily, Palermo
Palorthoceras buttsi (FOSSIL) (Flower, 1962 †)
Orthoceras calamus (FOSSIL) de Koninck †
Trematoceras celticum (FOSSIL) (Mojsisovics, 1873 †) Austria, Steiermark, Liezen
Orthoceras champernowni (FOSSIL) Whidborne † UK, Devon
Orthoceras cuvieri (FOSSIL) Barrande, 1868 †
Orthoceras decipiens (FOSSIL) Barrande, 1866 † Czech Republic, Bohemia
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 † Morocco, Tafilalet
Trematoceras dubium (FOSSIL) (J. Von Hauer, 1847 †) Afghanistan, Logar
Trematoceras elegans (FOSSIL) (Münster, 1841 †)
Orthoceras elegantulum (FOSSIL) C. Gemmellaro, 1889 † Italy, Sicily, Palermo
Copiceras erectum (FOSSIL) Ulrich & al., 1944 † Arkansas, Lawrence County