Opis

Exogastric to secondarily endogastric, bulgy shell with circular to depressed cross section; ventral to secondarily
central or subdorsal siphuncle with inflated connecting rings and strongly developed radial lamellae confined to septal necks.

Synonimy
Acleistoceratidae Flower, 1950; Brevicoccratidae Flower, 1941; Diestoceratidae Foerste, 1926; Valcouroceratidae Flower, 1945

Zasięg czasowy

Literatura

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