Beschreibung
The Triassic Period (~252-202 Ma) witnessed the evolutionary appearance of modern terrestrial biota, the origin and rise to ecological dominance of dinosaurs, and dramatic climate changes on the continents. The complex of epicontinental basins in western Pangea, now exposed on the Colorado Plateau, preserves a rich low-paleolatitude biotic and paleoenvironmental terrestrial record from the Triassic.