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Triassic Rocks in North America Today

Explore: the Triassic in
or world paleogeography of the
Geologic activity since the Triassic has covered up or removed many of these deposits. Exposures of Triassic rocks in the U.S. can be found in the Cascade Mountains, Sierra Nevada, Rocky Mountains, Texas, and states east of the Appalachian Mountains. Triassic dinosaur trackways can be found in several East Coast states, as well as in the American West. Triassic outcrops are rare in Mexico, but do occur in the southeastern and northwestern parts of the country. Triassic rocks are also found in several Canadian provinces.

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

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

Triassic Fossils
Fossil photos from Triassic

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