- Source: Grant Lake Formation
The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
See also
List of fossiliferous stratigraphic units in Ohio
List of fossiliferous stratigraphic units in Kentucky
References
Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.