Backed by a National Science Foundation grant of more than $500,000, Pfeifer, the lead principal investigator, and a team of ...
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How Many Mass Extinctions Have There Been On Earth?
Earth has a long and dramatic history, and one recurring theme is extinction. Did you know that over the last 500 million years, our planet experienced five major mass extinction events? These events ...
pt. 1. Articles of a general nature. Phanerozoic marine biodiversity : a fresh look at data, methods, patterns and processes / Martin Aberhan and Wolfgang Kiessling ; Coordinated stasis reconsidered : ...
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