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

Abstract : Two fossil localities are reported on the "LGV SEA" railroad from the Lower Cenomanianof Jaunay-Clan (JC), near Poitiers, western France. The laminated mudstones yielded plantfossils including ferns (Cladophlebis, Osmundophyllum, Ruffordia goeppertii, Sphenopteris),conifers (Brachyphyllum, Dammarophyllum, Pagiophyllum), and terrestrial and aquaticfreshwater angiosperms (Eucalyptolaurus depreii, Ploufolia). They are associated with acoleopteran insect that shows systematic affinities to the modern subfamily Chrysomeli-nae (Chrysomelidae). This assemblage suggests connections with arborescent vegetationgrowing in calm freshwater environment. Brackish to marine invertebrates also occurand include a dakoticancroid crab (Brachyura, Podotremata, Dakoticancroidea) and a fewbivalves (Brachidontes). They suggest brackish episodes during pond sedimentation in acoastal environment. Lastly, vertebrates are represented by an isolated feather.
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Xavier Valentin, Bernard Gomez, Véronique Daviero-Gomez, Sylvain Charbonnier, Patrice Ferchaud, et al.. Plant-dominated assemblage and invertebrates from the lower Cenomanian of Jaunay-Clan, western France. Comptes Rendus Palevol, Elsevier Masson, 2014, 13 (5), pp.443-454. ⟨10.1016/j.crpv.2014.04.001⟩. ⟨insu-01017379⟩

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