Petersburg Formation
The Petersburg Formation is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period.
| Petersburg Formation Stratigraphic range: Pennsylvanian | |
|---|---|
| Type | Formation |
| Unit of | Carbondale Group |
| Underlies | Dugger Formation |
| Overlies | Linton Formation |
| Location | |
| Region | Indiana |
| Country | United States |
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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