Petrolia Formation
The Petrolia Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period.
| Petrolia Formation | |
|---|---|
| Stratigraphic range: Permian | |
Outcrops of the Petrolia Formation | |
| Type | Formation |
| Unit of | Wichita Group |
| Underlies | Waggoner Ranch Formation |
| Overlies | Nocona Formation |
| Location | |
| Region | Texas |
| Country | United States |
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