Rodzaj Leptomaria Eudes-Deslongchamps, 1864
Gatunek typowy Opis Shell conical or cyrtoconoid, anomphalous to broadly phaneromphalous; whorls weakly to strongly convex, not angular, last one rounded at periphery of convex base; selenizone at mid-whorl; ornament spiral threads that may be cancellated by collabral threads. Synonimy Zasięg czasowy Mid Jurassic (Bajocian) to Paleocene (Selandian); possibly also Eocene. Literatura Eudes-Deslongchamps, J.A. 1849. Mémoire sur les Pleurotomaires fossiles des terrains secondaires du Calvados. Mémoires de la Société Linnéenne de Normandie 7, 1–151. |
|