Gatunek typowy
Orthoceras michelini BARRANDE, 1866

Opis

Long and straight, tra nsversally ornamented shell with inflated embryonic part, and long living chamber, subcentral
siphuncle; connecting rings cylindrical to at most a little inflated.

Synonimy
Michelinoceratidae FLOWER, 1945; Geisonoceratidae ZHURAVLEVA, 1959; Folioceratidae COLLlNS, 1962

Zasięg czasowy

Literatura

Dzik, J. 1984a. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45, 1-255