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    • Molybdenum evidence for expansive sulfidic water masses in ~750Ma oceans 

      Dahl, Tais; Canfield, Donald E.; Rosing, Minik T.; Frei, Robert E.; Gordon, Gwyneth W.; Knoll, Andrew Herbert; Anbar, Ariel D. (Elsevier BV, 2011)
      The Ediacaran appearance of large animals, including motile bilaterians, is commonly hypothesized to reflect a physiologically enabling increase in atmospheric and oceanic oxygen abundances (pO2). To date, direct evidence ...