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Study: Massive Volcanoes May Have Killed Half of the Earth’s Species 200 Million Years Ago

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Study: Massive Volcanoes May Have Killed Half of the Earth’s Species 200 Million Years Ago

“The release of gases from giant eruptions caused climate change that led to the End-Triassic Extinction, the widespread loss of land and sea species that made way for the rise of the dinosaurs, the research says. The new study, published Thursday, March 21, in the journal Science, shows that a set of major eruptions spanning from what is now New Jersey to Morocco occurred very close to the time of the extinction.

Scientists suspected previously that such volcanic activity and the resultant climate change were responsible for this major extinction and at least four others. But researchers weren’t able to constrain the dates of the eruptions and extinctions well enough to prove the hypothesis. The new study, however, dates the End-Triassic Extinction to 201.56 million years ago, the same time the volcanoes were blowing their tops.

” — Tanya Lewis, Copyright 2013 LiveScience


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