Institution: | 1. Department of Geology and Planetary Science, University of Pittsburgh, 4107 O’Hara St, Pittsburgh, PA, 15260, USA 2. Department of Botany and Plant Sciences, University of California, 900 University Ave, Riverside, CA, 92521, USA 3. Department of Geological Sciences, University of Florida, PO Box 112120, Gainesville, FL, 32611, USA
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