Diagnoza

Shell elongate, 2.41 times as high as broad. Protoconch hyperstrophic, ornamented by abapical folds and remnants of adapical folds. Teleoconch starting with three prominent and one subsutural spiral  ribs. Medial ribs broader than adapical and subsutural ribs. The number of spiral ribs increasing during ontogeny (12 ribs on third teleoconch whorl). Whorls rounded, delicately angulated at primary adapical spiral rib. Spiral ribs crossed by weaker, prosocline axial ribs (about 74–75 per whorl).

Porównanie

Most similar to M. angulata but the latter differs by having fewer spiral ribs and stronger and less numerous axial ribs.

Autekologia

Występowanie geograficzne

Only in the type locality. 

Zasięg czasowy

Quenstedtoceras lamberti Zone, Late Callovian (Mid Jurassic

Materiały muzealne

One shell.

Literatura

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