Holotype ZPAL Ga.9/283 from the Mid Bathonian (Mid Jurassic) of Faustianka (Częstochowa region) in lateral and apical view.

Diagnoza

Protoconch clearly demarcated from teleoconch, almost coaxial, smooth. Shell broadly spindle-like, 1.53 times as high as broad. Teleoconch starting with two distinct adapical striae and two to three weakly visible lateral spirae. Later shell with well developed, evenly spaced lateral striae (including that on base). Teleoconch whorls rounded with narrow,  well pronounced adapical ramp. Peristome elongated. Columellar area with narrow inner lip. Umbilical chink narrow.

Porównanie

Similar to S. latestriatus (Walther, 1951) but differs in having evenly spaced spiral striae and broader subsutural ramp.

Autekologia

Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Procerites progracilis Zone, Mid Bathonian, Mid Jurassic.

Materiały muzealne

ZPAL: 17 shells.

Literatura

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