Triassic

The Triassic is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.9 million years ago, to the beginning of the Jurassic Period 201.3 million years ago. It is the first and shortest period of the Mesozoic Era and is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic.

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