Helderberg Formation

The Helderberg Formation is a geologic formation in Pennsylvania, Maryland and West Virginia. It preserves fossils dating back to the Devonian period.

Helderberg Formation
Stratigraphic range: Devonian
TypeFormation
Location
CountryUnited States
ExtentMaryland, Pennsylvania, West Virginia

See also

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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