Lucas Formation
The Lucas Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
| Lucas Formation | |
|---|---|
| Stratigraphic range: Middle Devonian | |
| _5_(48904937882).jpg.webp) Lucas Dolomite (Middle Devonian; quarry near Junction, Ohio) | |
| Type | Formation | 
| Unit of | Detroit River Group | 
| Underlies | Anderdon Limestone and Dundee Formation | 
| Overlies | Amherstburg Formation | 
| Location | |
| Region | Michigan and Ohio | 
| Country | United States | 
References
    
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021. {{cite web}}:|author=has generic name (help)
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