Sur les "gres rouges" du Cretace moyen de Dieulefit et des regions voisines (Drome)

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Abstract
Red sandstones in the zone between flint-bearing limestones generally attributed to the Turonian and paleontologically dated upper Cenomanian (Cretaceous) deposits of the Dieulefit region, France, are dated as lower Turonian (Saumurian) and lower middle Turonian (lower Angoumian), mainly on the basis of the Globotruncana microfauna. A stratigraphic gap occurs between the upper Cenomanian and the base of the red sandstone, which reflects the effects of pre-Senonian orogenic activity.

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