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  1. Permian–Triassic extinction event - Wikipedia

    Studies of the timing and causes of the Permian-Triassic extinction are complicated by the often-overlooked Capitanian extinction (also called the Guadalupian extinction), just one of perhaps two …

  2. Permian extinction | Overview & Facts | Britannica

    Jan 2, 2026 · The Permian extinction was characterized by the elimination of about 90 percent of the species on Earth, which included more than 95 percent of the marine species and 70 percent of the …

  3. The Permian Extinction—When Life Nearly Came to an End

    Oct 15, 2024 · About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than five percent of the animal species in the seas survived. On …

  4. great catastrophe: causes of the Permo-Triassic marine mass extinction ...

    Oct 25, 2023 · The mass extinction at the end of the Permian, nearly 252 million years ago, was the most severe to affect life on Earth. Generic extinction rates exceeded 80%, with victims encountered …

  5. Permian extinction, facts and information | National Geographic

    About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than 5 percent of the animal species in the seas survived. On land...

  6. Mass Extinction at the End of the Permian Period - GeoKansas

    Scientists estimate about 90% of the plant and animal species on Earth during the Permian Period were extinct by the end of the period. Marine animals living in reefs and shallow waters were especially …

  7. The Permian Mass Extinction – Introduction to Historical Geology

    The Paleozoic era had two smaller mass extinctions, but these were not as large as the Permian Mass Extinction, also known as the Permian-Triassic Extinction Event. It is estimated that 96% of marine …

  8. Environmental crises at the Permian–Triassic mass extinction

    Feb 22, 2022 · In this Review, we critically evaluate the geological evidence and discuss the current hypotheses surrounding the kill mechanisms of the Permian–Triassic mass extinction.

  9. The Permian Period

    The Permian period lasted from 299 to 251 million years ago* and was the last period of the Paleozoic Era. The distinction between the Paleozoic and the Mesozoic is made at the end of the Permian in …

  10. Permian Period - Mass Extinction, Climate Change, Fossils | Britannica

    The final Permian extinction event, sometimes referred to as the terminal Permian crisis, while very real, may have taken up to 15 million years to materialize and likely eliminated many ecologically …