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Cretaceous Rocks in North America Today

Explore: the Cretaceous in
or world paleogeography of the
Much of northeastern North America has been above sea level since the Cretaceous. These highlands have been shedding sediment into lower areas instead of accumulating it. Therefore, there are few rocks of this age in northeastern states. Exposures of Cretaceous rocks in the U.S. can be found in New Jersey, around the Appalachians from North Carolina to Tennessee, and west of the Mississippi River (from Texas north to Montana and west to California). Exposures of Cretaceous rocks cover much of Alberta and Saskatchewan, as well as parts of British Columbia. Scattered Cretaceous age outcrops also occur in all four regions of Mexico.

View modern exposures of rock from
each time period in North America:

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

Cretaceous Fossils
Fossil photos from Cretaceous

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