Gatunek typowy

Opis

Type species: Cerithium tortile Hébert & Eudes−Deslongchamps, 1860. Callovian (Mid Jurassic), Montreuil−Bellay, France.
Protoconch with two spiral keels. Demarcation between protoconch and teleoconch sinusoidal. Teleoconch Bittium−like with slightly or deeply incised sutures. Ornament of teleoconchstarting with distinctly straight axial ribs and weaker spiral ribs which becoming stronger during ontogeny. Intersections of the ribs more or less nodose.

Synonimy
Xystrella Cossmann,1906

Zasięg czasowy

Early Jurassic to Early Cretaceous.

Literatura

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

Tate, R. 1869. Contributions to Jurassic Palaeontology. 1. Cryptaulax, a new Genus of Cerithiadae. The Annals and Magazine of Natural History 4, 417–419.