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The Cenomanian–Turonian succession (C–T) outcropping in the Tinrhert Basin, in the southeastern part of Algeria, has been the focus of many studies since the turn of the 19th century. In the present research, new C–T sections have been scrutinized over a distance of approximately 300 km, from Gour Ben Houilet in the west to Oued In Adaoui in the east. More than 1.700 ammonites and nautilids were collected...
The jaws of Cretaceous nautiloids and some ammonoids (Phylloceratina and Lytoceratina) contain calcareous elements, namely rhyncholites in the upper jaws and conchorhynchs in the lower. Until now, only several types of numerous rhyncholites have been described from the Cretaceous deposits of Crimea, but lower jaw elements have never been reported from this region. Here we present the first finds of...
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