| Onny Shale | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Lithology | |
| Primary | Shale |
| Location | |
| Region | Wales |
| Country | United Kingdom |
The Onny Shale is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period.
 | This article about a specific stratigraphic formation in the United Kingdom is a stub. You can help Wikipedia by expanding it. |
