| Abstract: | The fossiliferous layer is located in tortonian fresh water marls with “Helix” christoli within Durance basin.Micromammals, molluscs and ostracodes are yielded. The fauna analysis get to place it in Middle turolian (MN 12 zone) and to give an Upper Turolian age (MN 13) to the Luberon red limes and gravels formation. It appears clearly that the lacustrine biotop with Paralimnocythere bouleigensis spread more and more late southward in the Rhône valley. At the Tortonian, the sea stopped longuer in the Durance basin than in the Valréas one. |
