Diagnoza

First 2.5 teleoconch whorls with angulation close to abapical suture and rest whorls of protoconch with angulation in middle part of visible whorl surface. Angulation there bears undulation of weak carinae. Third whorl of teleoconch wider than fourth.

Porównanie

The species differs from the other in the situation of the angulation at the first two whorls of the teleoconch and with its delicate undulation. Moreover the third whorl is wider than the fourth.

Autekologia

Występowanie geograficzne

Type locality only. 

Zasięg czasowy

Zasięg czasowy Quenstedtoceras lamberti Zone, Callovian.

Materiały muzealne

ZPAL: One well−preserved adult shell and three juveniles.

Literatura

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