Permian-Triassic extinction
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Study Bolsters Volcanic Theory of Ancient Extinction
A team of scientists has found new evidence to bolster the idea that the Permian Extinction, which occurred 252 million years ago, was caused by massive volcanic eruptions in what is now Siberia.
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Some Do Not Like It Hot
The Great Dying, The Big One — The Permo-Triassic! (In a time machine, not sure if that’s where I’d aim …) As extinctions go, this one’s a blockbuster classic, When most of Earth’s species dropped out of the game.
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Lords of the Past
With life, legged and finned, Earth had been teeming, Slitherers, predators, graceful trees tall … Now, of these species, we are only dreaming: Glossopteris, trilobites, eurypterids, all.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!
