Gatunek typowy
Parvitomella exigua Gründel, 2000. Late Batonian (Mid Jurassic), Kłęby borehole 1/37, West Pomerania, Poland.

Opis

Conical shell with convex, rounded whorls. Protoconch of one whorl, subplanispiral. Early teleoconch with axial ribs, further in ontogeny ribs reduced. Rounded base, ornamented with spirals. Umbilicus small. Peristome broadly oval, complete with no callus.

Synonimy

Zasięg czasowy

Mid to Late Bathonian (Mid Jurassic).

Literatura

Gründel, J. 2000a. Archaeogastropoda aus dem Dogger Norddeutschlands und des nordwestlichen Polens. Berliner Geowissenschaftliche Abhandlungen, Reihe E34, 205–253.

Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183