existing for approximately 24.3 million years. Castelloceras was named by Evans (2005). Its type is Castelloceras arennigense. It was assigned to Baltoceratidae...

Kobayashi (1935) Genera †Amsleroceras †Annbactroceras †Bactroceras †Castelloceras †Cochlioceras †Cyrtobaltoceras †Endorioceras †Eosomichelinoceras †Hedstroemoceras...