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  1. Triassic - Wikipedia

    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: …

  2. Triassic Period | Plants, Animals, Major Events, & Facts | Britannica

    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 …

  3. The Triassic Period: the rise of the dinosaurs - Natural 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.

  4. Triassic Period Facts and Information - National Geographic

    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.

  5. The Triassic Period

    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 …

  6. Triassic Period—251.9 to 201.3 MYA (U.S. National Park Service)

    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 …

  7. Triassic - New World Encyclopedia

    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).

  8. The Triassic Period - Science and History Museum

    The Triassic was a geological period that marked the end of the Permian age and saw the first Dinosaurs find their place in a chaotic world.

  9. Triassic Period - Climate, Extinction, Reptiles | Britannica

    Dec 21, 2025 · Beginning in the Late Permian and continuing into the Early Triassic, the emergence of the supercontinent Pangea and the associated reduction in the total area …

  10. Triassic - Energy Education

    The name "Triassic" is derived from German geologist Frederich August von Alberti's Trias (1834), which united three rock formations: coloured sandstone (Figure 2), clam limestone, …