Deltoceras capax (FOSSIL) Ulrich & al., 1942 †
Deltoceras planum (FOSSIL) A. Hyatt, 1894 † Canada, Newfoundland and Labrador, Division No. 9
Deltoceras subsectum (FOSSIL) Buckman, 1902 † UK, Dorset
Deltoceras vaningeni (FOSSIL) Ruedemann, 1906 †