| Aspen Shale | |
|---|---|
| Stratigraphic range: Cretaceous | |
| Type | Formation |
| Location | |
| Region | Wyoming |
| Country | United States |
The Aspen Shale is a geologic formation in southwestern Wyoming, United States. It preserves fossils dating back to the Albian stage of the Cretaceous period, around 100.5–133 million years ago.
 | This article about a specific stratigraphic formation in Wyoming is a stub. You can help Wikipedia by adding missing information. |
 | This article related to the Cretaceous period is a stub. You can help Wikipedia by adding missing information. |
