Fossiliferous limestone Location: U.S. National Museum of Natural History, Washington, DC Year: 2013 Merckdigitals catalogue number: 22-81949 Comments: Oak Flats, WV, Devonian

Fossiliferous limestone (detail of above) Location: U.S. National Museum of Natural History, Washington, DC Year: 2013 Merckdigitals catalogue number: 22-81949 Comments: Oak Flats, WV, Devonian

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