Mass extinction of land and sea biodiversity 250 million years ago not simultaneous | 9/22/2015 | Staff
erinmmarionerinmmarion (Posted by) Level 3
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Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.

New research led by Colby College geologist Robert Gastaldo has revealed the most definitive proof to date that the extinctions did not occur at the same time. The findings, published in the journal PALAIOS, have implications for the impact of a possible future biodiversity crisis driven by climate change and a warming planet.

Research - Fossil - Record - Studies—which - Standard

The NSF-funded research shows that the vertebrate fossil record reported in earlier studies—which has been used as the standard in interpreting Earth's largest known mass extinction—is inaccurate and not sufficient to substantiate the long-held belief that marine species and terrestrial vertebrates perished together.

The findings, which resulted from 15 years of research in South Africa's Karoo Basin, show that an event 250 million years ago devastated marine life but didn't affect life on land....
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