HSEA 010 Lecture Notes - Lecture 6: Elliot Formation, Carnian, Supercontinent
28 Jul 2020
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Document Summary
In the triassic, reptiles began to dominate both the land and the seas. The triassic period is the initial period of the mesozoic era of the geological time scale (which started 252. 2 million years ago and ended 66 million years ago). Together with the later jurassic and cretaceous periods, they constitute the reign of the dinosaurs on earth. The triassic period extended from 251 million years ago to approximately 201 million years ago, a period that begins and ends with two events of mass extinction of species: that of the permian- This allows a more precise fixation of its time limits. Its name comes from the three rock strata in which the german paleontologist friedrich august von alberti identified in the first fossil finds of that period, in central germany, in 1834. Triassic is the first geological period in which fossils of dinosaurs. The permian period is the last of the paleozoic era, prior to the mesozoic.
