Holotype ZPALGa.9/281 from the Valanginian (Early Cretaceous) of Wąwał in lateral and apical view.

Diagnoza

Protoconch clearly demarcated from teleoconch, medioaxial, smooth, sunken deeply into first teleoconch whorl. Shell broadly spindle-like, 1.55 times as  high  as  broad.  Teleoconch  starting with growth lines only, after half whorl 7–8 spiral, pitted, evenly spaced striae appearing. Shape of pits rhomboidal to rectangular. Base ornamented with striae as found on later part of whorls. Teleoconch whorls rounded with narrow, well pronounced adapical ramp. Peristome elongated. Columella thick, without folds. Columellar area with weakly developed, narrow umbilical chink.

Porównanie

Dffers from the Recent species of Leucotina in having a thick inner lip and a very weakly developed umbilical chink.

Autekologia

Występowanie geograficzne

Only in type locality.

Zasięg czasowy

Tirnoviella pertransiens Zone to Saynoceras verrucosum Zone, Early Valanginian (Early Cretaceous).

Materiały muzealne

ZPAL: 23 shells.

Literatura

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