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    • New Lu-Hf and Pb-Pb Age Constraints on the Earliest Animal Fossils 

      Barfod, Gry H.; Albarede, Francis; Knoll, Andrew; Xiao, Shuhai; Telouk, Philippe; Frei, Robert; Baker, Joel (Elsevier, 2002)
      The Neoproterozoic Doushantuo Formation, South China, preserves a unique assemblage of early multicellular fossils and overlies rocks, which are thought to have formed during an ice age of global extent. The age of this ...