Bolast Formation From Wikipedia, the free encyclopedia Geologic formation in France TypeFormationCountryFranceBolast FormationStratigraphic range: DevonianTypeFormationLocationCountryFrance The Bolast Formation is a geologic formation in France. It preserves fossils dating back to the Devonian period. Earth sciences portalFrance portalPaleontology portal List of fossiliferous stratigraphic units in France References Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014. This article about a specific stratigraphic formation in France is a stub. You can help Wikipedia by expanding it.vte This article related to the Devonian period is a stub. You can help Wikipedia by expanding it.vte Related Articles