Rodzaj Astandes Wade, 1917
Gatunek typowy Opis Medium−sized anomphalous trochoid shell with round−sided whorls marked by numerous strong spiral lirae and thick collabral axial ribs. Aperture D−shaped with short anterior canal. Synonimy Zasięg czasowy Bathonian (Mid Jurassic) to Late Cretaceous Literatura Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. Wade, B. 1917. New and little known gastropoda from the Upper Cretaceous of Tennessee. Proceedings of the Academy of Natural Sciences of Philadelphia 59, 280–304. |
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