Geology

The main story of the Petrified Forest is one of geology. Uplift of the Colorado Plateau and the erosional forces of water and wind have exposed rocks originally deposited during the Late Triassic Epoch. These rock layers or strata record details of millions of years of Earths history including changing environmental conditions through time as well as records of the plants and animals that lived in these environmentsincluding the earliest dinosaurs.

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