# Mercer Formation

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Geologic formation in Pennsylvania, United States

Mercer Formation Stratigraphic range: Carboniferous Type Formation Location Region Pennsylvania Country United States

The **Mercer Formation** is a [geologic formation](/source/Formation_(geology)) in [Pennsylvania](/source/Pennsylvania). It preserves [fossils](/source/Fossils) dating back to the [Carboniferous](/source/Carboniferous) [period](/source/Period_(geology)).

## See also

- [Earth sciences portal](https://en.wikipedia.org/wiki/Portal:Earth_sciences)
- [Pennsylvania portal](https://en.wikipedia.org/wiki/Portal:Pennsylvania)
- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

- [List of fossiliferous stratigraphic units in Pennsylvania](/source/List_of_fossiliferous_stratigraphic_units_in_Pennsylvania)

- [Paleontology in Pennsylvania](/source/Paleontology_in_Pennsylvania)

## References

- Various Contributors to the Paleobiology Database. ["Fossilworks: Gateway to the Paleobiology Database"](https://www.fossilworks.org). Retrieved 17 December 2021.

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