Dunleith Formation
The Dunleith Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
| Dunleith Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Unit of | Galena Group |
| Location | |
| Region | Illinois Iowa Missouri Wisconsin |
| Country | United States |
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