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Swiss Journal of Geosciences
Fig. 11 | Swiss Journal of Geosciences

Fig. 11

From: The Perte-du-Rhône Formation, a new Cretaceous (Aptian-Cenomanian) lithostratigraphic unit in the Jura mountains (France and Switzerland)

Fig. 11

a Iron-rich sandy facies of the Poncin Mb (Cenomanian) in between the Mussel Member (Albian) below and the Narlay Fm (Turonian) above, in the Poncin section (Ain, France). b North-eastern view form the left river bank of the glauconite-rich facies of the Poncin Mb (Cenomanian) in between the Mussel Member (Albian) below and the Molasse (Miocene) above, in the Perte-du-Rhône section (Bellegarde, Ain, France). c Mantelliceras dixoni Spath 1926 from the Early Cenomanian Poncin Mb at Poncin (Busnardo et al. 1966. d Schloenbachia varians (Sowerby 1817), coll. A. Pictet, MHNG GEPI 84627; of the Early Cenomanian from the Mussel mine

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