Rodzaj Striatoconulus Gründel, 2000
Gatunek typowy Opis Convex flanks of whorls, distinct suture. First whorls of teleoconch smooth. Later whorls including the base, covered by spirals. No axial ribs developed. Base moderately convex, angulate, with small umbilicus. Aperture with columellar callus and a halfmoon−shaped cavity on columella. Synonimy Zasięg czasowy Mid Bathonian to Mid Callovian (Mid Jurassic). Literatura Gründel, J. 2000a. Archaeogastropoda aus dem Dogger Norddeutschlands und des nordwestlichen Polens. Berliner Geowissenschaftliche Abhandlungen, Reihe E34, 205–253. Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183. |
|