Helderberg Group
The Helderberg Group is a geologic group that outcrops in the State New York. It also is present in Pennsylvania, Ohio and West Virginia, It preserves fossils dating back to the Devonian period.
| Helderberg Group | |
|---|---|
| Stratigraphic range: Silurian-Early Devonian | |
| Type | Group |
| Underlies | Onondaga Limestone and Oriskany Formation |
| Overlies | Keyser Formation |
| Location | |
| Region | New York Pennsylvania, West Virginia and Ohio |
| Country | United States |
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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