- Foerste, 1926
Leurotrochoceras Foerste, 1926
Peismoceras Hyatt, 1894
Systrophoceras Hyatt, 1894
Trochodictyoceras Foerste, 1926 "Lechritrochoceratidae"...
- †Synetoceras †Syringoceras †Syringonautilus †Syrionautilus †Syrreghmatoceras †
Systrophoceras †Tainionautilus †Tainoceras †Tajaroceras †Talattoceras †Tambegiroceras...