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Excello Shale 
Summary
The Excello Shale is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period.
| Excello Shale | |
|---|---|
| Stratigraphic range: Carboniferous | |
| Type | Formation |
| Location | |
| Region |  Indiana |
| Country |  United States |
See also edit
References edit
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.