Opis

Conch very involute pachyconic to subdiscoconic; whorls very or completely involute; umbilicus from moderately broad to very narrow; sculpture of dichotomizing ribs, coarse or very thin, radial at first, but then forming a more or less developed sinus, convex or flat; wide ventral lobe broad with mucronate, simple branches; first outer saddle rounded at the top; lateral lobe ampullaceous and mucronate basally.

Synonimy

Zasięg czasowy

Carboniferous; Bashkirian-Moscovian

Literatura

Ruzhencev, V.E. & Bogoslovskaya, M. F. 1969. Revision of the family Dimorphoceratidae. Paleontological Journal 3: 43-56.