Plant-dominated assemblage and invertebrates from the Lower Cenomanian of Jaunay-Clan, western France

Xavier VALENTIN, Bernard GOMEZ, Véronique DAVIERO-GOMEZ, Sylvain CHARBONNIER, Patrice FERCHAUD, Alexander G. KIREJTSHUK, Alexis LICHT, Didier NÉRAUDEAU, Romain VULLO & Géraldine GARCIA

en Comptes Rendus Palevol 13 (5) - Pages 443-454

Published on 31 August 2014

This article is a part of the thematic issue French Lagerstätten and exquisitely preserved fossils

Two fossil localities are reported on the “LGV SEA” railroad from the Lower Cenomanian of Jaunay-Clan (JC), near Poitiers, western France. The laminated mudstones yielded plant fossils including ferns (Cladophlebis, Osmundophyllum, Ruffordia goeppertii, Sphenopteris), conifers (Brachyphyllum, Dammarophyllum, Pagiophyllum), and terrestrial and aquatic freshwater angiosperms (Eucalyptolaurus depreii, Ploufolia). They are associated with a coleopteran insect that shows systematic affinities to the modern subfamily Chrysomelinae (Chrysomelidae). This assemblage suggests connections with arborescent vegetation growing in calm freshwater environment. Brackish to marine invertebrates also occur and include a dakoticancroid crab (Brachyura, Podotremata, Dakoticancroidea) and a few bivalves (Brachidontes). They suggest brackish episodes during pond sedimentation in a coastal environment. Lastly, vertebrates are represented by an isolated feather.


Fossil plants, Invertebrates, Freshwater environment, Lower Cenomanian, Western France

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