Article ID Journal Published Year Pages File Type
5787730 Annales de Paléontologie 2017 11 Pages PDF
Abstract
The « Marnes et calcaires lumachelles à huîtres » Formation (late Albian-early Cenomanian) of the South Riffian Ridges, rich in bivalves, yielded in levels of upper Albian some gastropod specimens including: Ampullina aff. uchauxiensis Cossmann, Ampullina indet., Aporrhaidae indet., Calliomphalus cf. orientalis (Douvillé), Cerithioidea indet., Mrhilaia indet.,?Neogastropoda indet., Pleurotomaria indet., Pseudamaura subbulbiformis (d'Orbigny), Tylostoma aff. globosum Sharpe, and a rare bivalve, Pinna (Pinna) cretacea cretacea (Schlotheim). The two underlying formations « Conglomérat et marnes sableuses » and « Calcaires gréseux » (early to middle Albian?), poor in macrofauna, yielded rare Nerineopsis aff. excavata (Brongniart) and Turritella indet. These species are reported for the first time in the Moroccan Cretaceous deposits.
Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Palaeontology
Authors
,