Gatunek typowy
Trochus ottoi Philippi, 1844. Pleistocene, Sicily, Italy.

Opis

Shell conical with convex whorls. Teleoconch is sculptured with axial and spiral ribs. Nodes appearing at intersections of ribs. Oblique aperture, angular; peristome complete. Base with some, usually four nodose spiral cords, with or without umbilicus.

Synonimy
Riselloidea Cossmann, 1909

Zasięg czasowy

Late Triassic to Recent.

Literatura

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

Seguenza, L. 1902. Molluschi poco noti dei Terreni Terziarii di  Messina. Trochidae e Solariidae. Bolletino della Societa Geologica Italiana 21, 455–465.