Upper Angoumian (upper Turonian: upper Cretaceous) sedimentation in the Camp plateau area of the Beausset basin of southern France occurred in an area of exclusively calcareous deposition, as contrasted with the terrigenous deltaic sedimentation in the La Ciotat and Soubeyran areas; but two antagonistic types of deposition occurred concurrently in the area. Colonies of Hippurites and other bioconstructive organisms developed limestone lentils, and waves and currents eroded the limestone masses into biodetrital calcarenite deposits in which no trace of bioherm structure is seen.

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