Biostratigraphy and palaeoenvironments of the Santonian deposits of the SEFrance: comparison between micropalaeontological data, effects of local and global parametres

New biostratigraphic (planktonic foraminifera) and palaeoenvironmental data have been obtained about the Santonian formation of the Vocontian Basin. T hey have been compared with those of two other palaeogeographic domains of the SE of France : the Rhodanian and the Provencal Basins. In basins, compl ex morphotypes of planktonic foraminifera change with the development of a K strategy in relation with a high marine level. In other domains. plankton ic foraminifera are less abundant, possibly absent; other biotopes take pla ce with rudist bioconstruction (bafflestone) or unbuilt biocoenose in relat ion with the coastal system progradation. Finally, comparisons with other p arts of the world and a discussion about the effect of different parametres are proposed.