| Cassville Shales | |
|---|---|
| Stratigraphic range: Permian | |
| Type | Formation |
| Location | |
| Region | West Virginia |
| Country | United States |
The Cassville Shales is a geologic formation in West Virginia. It preserves fossils dating back to the Permian period.
 | This article about a specific stratigraphic formation in West Virginia is a stub. You can help Wikipedia by expanding it. |
 | This article related to the Permian period is a stub. You can help Wikipedia by expanding it. |
