Cephalopoda Cuvier, 1797
Adamsoceras Flower, 1957
Hormoceras Agassiz, 1846
Metarmenoceras Flower, 1940
Mstikhinoceras Shimansky, 1961
Ormoceras Stokes, 1838
Ormoceratites Archiac & Verneuil, 1842
Parormoceras Shimizu & Obata, 1935
Troedssonoceras Foerste, 1928
