‘New’ Permian mass extinction discovered

Dear Kitty. Some blog

This 23 August 2019 video says about itself:

Here Dr. Mike Day talks to us about the Guadalupian extinction event that occurred about 8 million years before the End of the Permian mass extinction event.

From New York University in the USA:

Researchers unearth ‘new’ mass-extinction

New analysis brings total of species extinctions to six

September 9, 2019

A team of scientists has concluded that earth experienced a previously underestimated severe mass-extinction event, which occurred about 260 million years ago, raising the total of major mass extinctions in the geologic record to six.

“It is crucial that we know the number of severe mass extinctions and their timing in order to investigate their causes,” explains Michael Rampino, a professor in New York University’s Department of Biology and a co-author of the analysis, which appears in the journal Historical Biology. “Notably, all six major mass extinctions are correlated with devastating…

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