The vast supercontinent of Pangaea dominated the globe during the Triassic, but in the latest Triassic (Rhaetian) and Early Jurassic it began to gradually rift into two separate landmasses: Laurasia to the …

Dec 21, 2025 · Triassic Period, in geologic time, the first period of the Mesozoic Era. It began 252 million years ago, at the close of the Permian Period, and ended 201 million years ago, when it was …

Learn about the time period that took place 251 to 199 million years ago. The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth's history.

The Triassic was the first period of the Mesozoic Era. Discover what animals lived in the Triassic Period, which were the first dinosaurs and what prehistoric plants they lived alongside.

The Triassic period is an interval of about 51 million years defined on the geologic time scale as spanning roughly from 251 to 200 million years ago (mya).

It was at this time that the world-continent of Pangea existed, altering global climate and ocean circulation. The Triassic also follows the largest extinction event in the history of life, and so is a time …

Apr 28, 2023 · During the Triassic, the first dinosaurs walked on the land, the first pterosaurs sailed through the skies, and the first ichthyosaurs and plesiosaurs swam in the oceans. The lineage of …

Oct 30, 2012 · Reptiles (Reptilia): The Triassic begins the Mesozoic Era, also known as the Age of Reptiles. Reptiles diversified tremendously during this Period, filling many of the empty niches on …

The Triassic period began approximately 251 million years ago and extended for roughly 50 million years until 200 Ma. This period started and finished with large extinction events and dinosaur life was …

Feb 11, 2014 · The Triassic Period occurred between 251 million and 199 million years ago. It was a time when life outside of the oceans began to diversify.