The Paleontology of North America

The Precambrian in Pennsylvania, US

 map

undifferentiated rock units

See exposures in this state from the:

Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian

Precambrian Fossils

No slide show is available for the Precambrian in Pennsylvania.

Paleontology and geology

During the Late Precambrian, Pennsylvania was mainly a low, featureless plain sloping gently southeastward toward the sea. Most of Pennsylvania's exposed Precambrian rocks are metamorphic and igneous, and thus lack fossils.

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