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Oxygen levels link to ancient explosion of life, researchers find | The Source | Washington University in St. Louis
A team of researchers, including a faculty member and postdoctoral fellow from Washington University, found that oxygen levels appear to increase at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago, according to a study published Nov. 20 in Nature Geoscience.