Permian period

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Worst Case for Oceans: Another 'Great Dying'

Study blames Permian mass extinction on ocean acidity

(Newser) - The planet's greatest extinction —the Permian mass extinction, or the "Great Dying"—wiped out around 90% of marine species and two-thirds of those on land over 60,000 years. Some 252 million years later, researchers are explaining what happened—and it may not bode well for... More »

Erasing Almost All Life on Earth Took Just 60K Years

Study: That's give or take 48K years, 'practically instantaneous'

(Newser) - Roughly 252 million years ago, an extreme animal die-off occurred: 70% of land animals and 96% of marine life were obliterated, in what's known as the Permian mass extinction. What scientists still don't exactly know is why (an asteroid? volcanic eruptions?), but they now know how long it... More »

2 Stories