- Source: Grand Detour Formation
The Grand Detour Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
See also
List of fossiliferous stratigraphic units in Illinois
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.
Kata Kunci Pencarian:
- Grand Detour Formation
- Muscatatuck Group
- St. Peter Sandstone
- Pope Mega Group
- Embayment Megagroup
- Carbondale Group
- Warsaw Formation
- Glenwood Formation
- Knox Supergroup
- Dubuque Formation
