Cephalopoda Cuvier, 1797
Arkoceras Ulrich, Foerste, Miller & Flower, 1942
Discoceras Hyatt, 1867
Graftonoceras Foerste, 1925
Hardmanoceras Teichert & Glenister, 1952
Jasperoceras Ulrich, Foerste, Miller & Flower, 1942
Litoceras Hyatt, 1884
Schroederoceras Hyatt, 1894
Trocholites Conrad, 1838
Trocholithus Herrmannsen, 1849
Trocholitoceras Hyatt, 1894
Wichitoceras Ulrich, Foerste, Miller & Flower, 1942
