Diagnoza

Protoconch 1 partially covered by succesive whorls. Sinusigera notch in medial part of shell. Teleoconch ornamented with spiral ribs and fine granules arranged in delicate, spiral rows.

Porównanie

Similar to the Late Cretaceous Thylacus cretaceus Conrad, 1860 and the Late Triassic Palaeonarica concentrica (Münster, 1841).

Autekologia

Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Morrisiceras morrisi Zone, Mid Bathonian (Mid Jurassic).

Materiały muzealne

Holotype only.

Literatura

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