Gatunek typowy
Cyclothyca corrugata Stearns, 1890. Recent, west coast of Nicaragua.

Opis

Small shell, spiral, few whorls. Spire short, and body whorl large and transversely elongate. Aperture oblongate, ovate, more or less oblique, very large, continuous and effuse. Surface spirally ribbed and marked with longitudinal growth lines.

Synonimy

Zasięg czasowy

Early Cretaceous to Recent.

Literatura

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

Stearns R.E.C. 1890. Scientific results of explorations by the U.S. Fish Commission steamer Albatross. XVII.- Descriptions of new West American land, freshwater, and marine shells, with notes and comments. Proceedings of the United States National Museum 13 (813), 205-225, pls. 15-17.