Cyrtogomphoceras angustisiphonatum (FOSSIL) Miller †
Cyrtogomphoceras baffinense (FOSSIL) Foerste, 1928 † Canada, Baffin Island
Ulrichoceras beloitense (FOSSIL) Foerste, 1928 † Wisconsin
Cyrtogomphoceras contractum (FOSSIL) Foerste, 1935 †
Cyrtogomphoceras curvatum (FOSSIL) Troedsson, 1929 † Greenland
Cyrtogomphoceras dowlingi (FOSSIL) (Foerste, 1928 †) Canada, Manitoba
Cyrtogomphoceras foerstei (FOSSIL) Miller & Furnish, 1937 † South Dakota
Kiaeroceras frognoyense (FOSSIL) E. Strand, 1934 † Estonia, Lääne, Risti
Cyrtogomphoceras furnishi (FOSSIL) Roy, 1941 † Canada, Baffin Island
Kiaeroceras heroyense (FOSSIL) E. Strand, 1934 † Norway, Telemark, Porsgrunn
Cyrtogomphoceras intermedium (FOSSIL) (J.J.F. Whiteaves,1897 †) Canada, Manitoba
Cyrtogomphoceras landerense (FOSSIL) Foerste, 1935 † USA, Wyoming
Cyrtogomphoceras magnum (FOSSIL) (J.J.F. Whiteaves,1890 †) Canada, Baffin Island
Cyrtogomphoceras milleri (FOSSIL) (Roy, 1941 †) Canada, Baffin Island
Cyrtogomphoceras minor (FOSSIL) Foerste, 1935 † USA, Wyoming
Konglungenoceras norvegicum (FOSSIL) Sweet, 1959 †
Cyrtogomphoceras nutatum (FOSSIL) (Foerste & Savage †) Illinois
Strandoceras orvikui (FOSSIL) Kröger, 2007 † Estonia, Lääne-Viru
Cyrtogomphoceras perexpansum (FOSSIL) Foerste, 1935 † USA, Wyoming
Cyrtogomphoceras popoagiense (FOSSIL) Foerste, 1935 † USA, Wyoming
Landeroceras prolatum (FOSSIL) (Miller, 1932 †) USA, Wyoming
Cyrtogomphoceras rotundum (FOSSIL) Miller, 1932 † USA, Wyoming
Cyrtogomphoceras sacculus (FOSSIL) Troedsson, 1929 † Greenland
Strandoceras schmidti (FOSSIL) (Teichert, 1930 †)
Cyrtogomphoceras schucherti (FOSSIL) Flower, 1952 † Canada, Baffin Island
Cyrtogomphoceras shamattawaense (FOSSIL) Foerste & Savage, 1927 † Canada, Hudson Bay
Strandoceras sonax (FOSSIL) (Salter, 1858 †)
Strandoceras sphinx (FOSSIL) (A. Schmidt, 1858 †) Estonia, Hiiu, Pühalepa
Strandoceras strandi (FOSSIL) (Sweet, 1958 †) Norway, Akershus
Cyrtogomphoceras thompsoni (FOSSIL) Foerste, 1928 †
Cyrtogomphoceras turgidum (FOSSIL) Troedsson, 1929 † Greenland
Strandoceras tyriense (FOSSIL) (E. Strand, 1934 †) Norway, Akershus
Cyrtogomphoceras vicinum (FOSSIL) Foerste, 1935 † USA, Wyoming
Cyrtogomphoceras whiteavesi (FOSSIL) (S.A. Miller, 1897 †) Canada, Manitoba