Outcrop (IMAGE)

University of Texas at Austin

Outcrop

Caption

Before the rock core was recovered, most of what was known about the Late Triassic came from searching for signs of the Chinle Formation on rocky outcrops such as this one, found throughout Petrified Forest National Park. The rock layers that make up the formation were deposited during the Late Triassic Period.

Credit

Randall Irmis/NHMU

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