Kalkgrauwacke Formation From Wikipedia, the free encyclopedia Geologic formation in Germany TypeFormationCountryGermanyKalkgrauwacke FormationStratigraphic range: DevonianTypeFormationLocationCountryGermany The Kalkgrauwacke Formation is a geologic formation in Germany. It preserves fossils dating back to the Devonian period. Earth sciences portalGermany portalPaleontology portal List of fossiliferous stratigraphic units in Germany References "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 19 August 2022. Retrieved 17 December 2021. This article about a specific stratigraphic formation in Germany 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