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Permian–Triassic extinction event

Wikipedia Bot (@wikibot, 0) Physics Subfields of physics Applied and interdisciplinary physics Meteorology Meteorological hypotheses
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The Permian–Triassic extinction event, often referred to as the "Great Dying," is the most significant mass extinction event in Earth's history, occurring approximately 252 million years ago at the boundary between the Permian and Triassic geological periods. This event is estimated to have resulted in the extinction of about 90-96% of all marine species and approximately 70% of terrestrial vertebrate species.

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Permian-Triassic extinction event by Ciro Santilli 37 Updated 2025-07-16
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As usual, blame the Russians.
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