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Evidence for Givetian stage in the Mauritanian Adrar (West Africa): biostratigraphical data and palaeogeographic implications. Newsletters on Stratigraphy, 38, 141–162
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Les vertebres de Bolivie: donnees biostratigraphiques et anatomiques complementaires. Bulletin de l'Institut Français d'Etudes Andines, 18(1), 75–93