Cephalopoda Cuvier, 1797
Alaskoceras Miller & Kummel, 1945
Angulaticeras Quenstedt, 1883
Aphetoceras Hyatt, 1894
Clytoceras Ulrich, Foerste, Miller & Flower, 1942
Eichwaldoceras Balashov, 1955
Estonioceras Noetling, 1883
Oegoceras Whitfield & Hovey, 1906
Pycnoceras Hyatt, 1894
Shumardoceras Ulrich & Foerste, 1935
