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Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Comment et al., 2015 (Le Kimméridgien d’Ajoie (Jura, Suisse))
Comment et al., 2015
mhornДата: Saturday, 12.12.2015, 10:46 | Сообщение # 1
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Comment G., Lefort A., Koppka J., Hantzpergue H. (2015) Le Kimméridgien d’Ajoie (Jura, Suisse): lithostratigraphie et biostratigraphie de la Formation de Reuchenette // Revue de Paléobiologie, Genève. Vol.34. no.2. P.161-194.

pdf: http://www.ville-ge.ch/mhng/paleo/paleo-pdf/34-2/pal_34_2_01.pdf

During the construction of the A16 Transjurane highway (Canton Jura, Switzerland), the Paléontologie A16 team (Project funded by the Swiss Confederation and the République et Canton du Jura) had the opportunity to document and sample numerous new Kimmeridgian sections. The historical description of stratigraphical units and their synonyms, as well as the different lithofacies and dominant faunal assemblages of the Reuchenette Formation (Kimmeridgian, Upper Jurassic) are completely reviewed. The upper part of the Reuchenette Formation (Upper Kimmeridgian) is the new Chevenez Member. A description of local lithostratigraphic members and their correlation
with regional geological units is proposed. The observed facies correspond to marine deposits of a shallow, more or less open carbonate platform. Sedimentary beds are rich in fossils of typical intertidal to subtidal zones. During the fieldwork, 630 specimens of ammonites were discovered. This new material, in addition to the historical collections of the JURASSICA Museum (Porrentruy) and the “Fondation paléontologique jurassienne” (FPJ, Glovelier) completes previous studies of the Kimmeridgian of the Swiss and French
Jura. Thirteen ammonite-bearing horizons have been recognized and correlated with the Franco-Germanic biochronological scale. A new ammonite species from the Member of Courtedoux, Progeronia bruntrutense nov. sp., is described. These new data improve the biostratigraphic calibration of the lithostratigraphical units of the Reuchenette Formation and allow correlations between successions of the Ajoie and the nearby French outcrops (Montbéliard region).


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Comment et al., 2015 (Le Kimméridgien d’Ajoie (Jura, Suisse))
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