Diagnoza

Shell low-spired, turbinate. Protoconch sinistral, hyperstrophic with no ornamention. Terminal part of protoconch thickened. Teleoconch with  thick wall, unornamented apart from prosocyrt growth lines. Suture adpressed. Peristome in one plane, inclined adapically, complete. Outer lip even, inner lip with two undulations. Umbilicus circular, wide open.

Porównanie

Differs from B. cassiana Bandel, 1996 in having a  smaller number of protoconch whorls and clearly visible undulations of the inner lip.

Autekologia

Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Valanginian, Early Cretaceous.

Materiały muzealne

In ZPAL only two shells.

Literatura

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

Schröder, M.1995. Frühontogenetische Schalen jurassicher und unterkretazischer  Gastropoden aus Norddeutschland und Polen. Palaeontographica, Abteilung A 238, 1–95