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Late Triassic

Period
The Late Triassic is the third and final epoch of the Triassic Period in the geologic time scale, spanning the time between 237 Ma and 201.4 Ma. It is preceded by the Middle Triassic Epoch and followed by the Early Jurassic Epoch. The... Wikipedia
Period: Triassic
Occurred: 237 million years ago - 201.3 (+/- 0.2) million years ago
Ages: Carnian, Norian, and Rhaetian
Chronological unit: Epoch
Lower boundary definition: FAD of the Ammonite Daxatina canadensis
Lower boundary GSSP: Prati di Stuores, Dolomites, Italy; 46°31′37″N 11°55′49″E / 46.5269°N 11.9303°E
Lower GSSP ratified: 2008