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The Late Devonian mass extinction was one of the five largest mass extinction events in the history of life, said Professor Johnny Waters, who is a co-leader of the five-year, U.N. International Geoscience Programme project that began in 2011.
The end Permian extinction was the greatest mass extinction of the Phanerozoic Era. It. impacted marine and terrestrial plants and animals. Although the rate of the extinction has been. controversial in the past, recent evidence suggests that the extinction progressed in two pulses. approximately 5-12 million years apart.