Gratton Limestone
The Gratton Limestone is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
| Gratton Limestone Stratigraphic range: Ordovician | |
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References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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