Calcaire de Cognac
Stratigraphic range: Maastrichtian, 70–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Overlies	Argiles et Grès à Reptiles Formation
Thickness	Over 40 m (130 ft)
Lithology
Primary	Clay, shale
Other	Sandstone
Location
Coordinates	43°30′N 5°30′E / 43.5°N 5.5°E / 43.5; 5.5
Approximate paleocoordinates	36°06′N 4°00′E / 36.1°N 4.0°E / 36.1; 4.0
Region	Provence-Alpes-Cote d'Azur, Bouches-du-Rhône
Country	France
Extent	Aix-en-Provence Basin
Calcaire de Rognac (France)

The Calcaire de Rognac is a geologic formation in France. It preserves fossils dating back to the Maastrichtian stage of the Late Cretaceous period and possibly also sometime during the Tertiary period. It is overlain by the Argiles et Grès à Reptiles Formation.

• List of fossiliferous stratigraphic units in France

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

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