| Challis Volcanics | |
|---|---|
| Stratigraphic range: Paleogene | |
| Type | Formation |
| Location | |
| Region | Idaho |
| Country | United States |
The Challis Volcanics is a geologic formation in Idaho. It preserves fossils dating back to the Paleogene period.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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