Holotype MZ VIII Mg 4241/1 from the Callovian (Mid Jurassic) of Łuków (block in glacial drift) in lateral and apical view.

Diagnoza

Teleoconch composed of up to two whorls, ornamented with axial ribs (approx. 22–23 per whorl) and one spiral rib. Spiral rib situated on adapical part of whorl, forming weak angulation of shell. Ornament only at adapical part of body whorl. Base demarcated by spiral rib and ornamented by one more spiral rib below. Surface of teleoconch covered by fine, densely packed lirae. Protoconch 2 ornamented by oblique or spiral threads.

Porównanie

Differs from the other species of Buvignieria in having a lower protoconch and only two whorls of the teleoconch. Ornamentation is similar to paratype specimen SMNS 63302 of B. calloviana.

Autekologia

Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Quenstedtoceras lamberti Zone, Late Callovian (Mid Jurassic).

Materiały muzealne

Six shells.

Literatura

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