Rising oxygen levels may have facilitated the Great Ordovician Biodiversification Event according to a reconstruction of atmospheric oxygen concentrations.
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Stigall, A.L. Ordovician oxygen and biodiversity. Nature Geosci 10, 887–888 (2017). https://doi.org/10.1038/s41561-017-0024-1
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DOI: https://doi.org/10.1038/s41561-017-0024-1
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