Integrated paleoenvironmental reconstruction and taphonomy of a unique upper cretaceous vertebrate-bearing locality (Velaux, Southeastern France)

Aude Cincotta, Johan Yans, Pascal Godefroit, Géraldine Garcia, Jean Dejax, Mouloud Benammi, Sauveur Amico, Xavier Valentin

    Research output: Contribution to journalArticlepeer-review

    107 Downloads (Pure)

    Abstract

    The Velaux-La Bastide Neuve fossil-bearing site (Bouches-du-Rhône, France) has yielded a diverse vertebrate assemblage dominated by dinosaurs, including the titanosaur Atsinganosaurus velauciensis.We here provide a complete inventory of vertebrate fossils collected during two large-scale field campaigns. Numerous crocodilian teeth occur together with complete skulls. Pterosaur, hybodont shark and fish elements are also represented but uncommon. Magnetostratigraphic analyses associated with biostratigraphic data from dinosaur eggshell and charophytes suggest a Late Campanian age for the locality. Lithologic and taphonomic studies, associated with microfacies and palynofacies analyses, indicate a fluvial setting of moderate energy with broad floodplain. Palynomorphs are quite rare; only three taxa of pollen grains occur: a bisaccate taxon, a second form probably belonging to the Normapolles complex, and another tricolporate taxon. Despite the good state of preservation, these taxa are generally difficult to identify, since they are scarce and have a very minute size. Most of the vertebrate remains are well preserved and suggest transport of the carcasses over short distances before accumulation in channel and overbank facies, together with reworked Aptian grains of glauconite, followed by a rapid burial. The bones accumulated in three thin layers that differ by their depositional modes and their taphonomic histories. Numerous calcareous and iron oxides-rich paleosols developed on the floodplain, suggesting an alternating dry and humid climate in the region during the Late Campanian.

    Original languageEnglish
    Article numbere0134231
    JournalPLoS ONE
    Volume10
    Issue number8
    DOIs
    Publication statusPublished - 19 Aug 2015

    Fingerprint

    Dive into the research topics of 'Integrated paleoenvironmental reconstruction and taphonomy of a unique upper cretaceous vertebrate-bearing locality (Velaux, Southeastern France)'. Together they form a unique fingerprint.

    Cite this