Girtyoceras acutum (FOSSIL) Hind, 1918 †
Winchelloceras allei (FOSSIL) (Winchell, 1862 †)
Eumorphoceras angustum (FOSSIL) Moore, 1946 †
Winchelloceras antiatlanteum (FOSSIL) W. Korn & al., 2003 †
Calygirtyoceras arcticum (FOSSIL) (W.J. Gordon, 1957 †)
Sulcogirtyoceras artumbilicatum (FOSSIL) Ruzhentsev& Bogoslovskaya, 1971 †
Eumorphoceras bisati (FOSSIL) Horn, 1960 †
Eumorphoceras bisulcatum (FOSSIL) Girty, 1909 †
Girtyoceras brueningianum (FOSSIL) A. Schmidt, 1925 †
Sulcogirtyoceras burhennei (FOSSIL) (Bruning, 1923 †)
Eumorphoceras chungweiense (FOSSIL) Liang, 1957 †
Calygirtyoceras confusionense (FOSSIL) W. Korn & Titus, 2011 †
Sulcogirtyoceras coronula (FOSSIL) (F.A. Roemer, 1855 †)
Girtyoceras cowdalense (FOSSIL) Moore, 1946 †
Calygirtyoceras darkaouaense (FOSSIL) W. Korn & al., 1999 †
Girtyoceras deani (FOSSIL) Moore, 1946 †
Baschkirites discoidalis (FOSSIL) Librovitch, 1957 †
Girtyoceras discus (FOSSIL) (F.A. Roemer, 1852 †)
Baschkirites dostalakus (FOSSIL) (Rauser-Chernousova,1928 †)
Girtyoceras endicottense (FOSSIL) W.J. Gordon, 1957 †
Tumulites eurinus (FOSSIL) Ruzhentsev& Bogoslovskaya, 1971 †
Eumorphoceras girtyi (FOSSIL) Elias, 1956 †
Girtyoceras glabrum (FOSSIL) Ruzhentsev& Bogoslovskaya, 1971 †
Eumorphoceras goddardensis (FOSSIL) Elias, 1951 †
Girtyoceras gordoni (FOSSIL) W. Korn & Titus, 2011 †
Baschkirites granosus (FOSSIL) Ruzhencev & Bogoslovskaya,1978 †
Girtyoceras hamiltonense (FOSSIL) W. Korn & Titus, 2011 †
Girtyoceras hathawayanum (FOSSIL) (McChesney, 1860 †)
Eumorphoceras hudsoni (FOSSIL) T.N. Gill, 1947 †
Girtyoceras intracostatum (FOSSIL) Knopp, 1931 †
Eumorphoceras involutum (FOSSIL) Horn, 1960 †
Sulcogirtyoceras jasperense (FOSSIL) W.J. Gordon, 1964 †
Girtyoceras kazakhorum (FOSSIL) Ruzhentsev, 1966 †
Winchelloceras knappi (FOSSIL) Work & Mason, 2004 †
Girtyoceras latum (FOSSIL) Ruzhentsev& Bogoslovskaya, 1971 †