| Tanyard Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Unit of | Ellenburger Group |
| Location | |
| Region | Texas |
| Country | United States |
The Tanyard Formation is a geologic formation in Texas. It preserves fossils dating back to the Ordovician period.
 | This article about a specific stratigraphic formation in Texas is a stub. You can help Wikipedia by expanding it. |
 | This article related to the Ordovician period is a stub. You can help Wikipedia by expanding it. |
