Ephippioceras clitellarium (FOSSIL) (Sowerby, 1840 †)
Ephippioceras ferratum (FOSSIL) (Cox, 1857 †)
Ephippioceras inexpectans (FOSSIL) Miller & Youngquist,1947 †
Ephippioceras moinellae (FOSSIL) Tucker, 1976 †
Ephippioceras sphaericum (FOSSIL) Shimanskiy, 1967 †
Ephippioceras verneuili (FOSSIL) A. Hyatt, 1891 †
Megaglossoceras glicki (FOSSIL) W.J. Gordon, 1964 †
Megaglossoceras okense (FOSSIL) Shimanskiy, 1967 †
Megaglossoceras pristinum (FOSSIL) Miller & Owen, 1934 †