Affiliations

• ¹ Department of Anthropology and Quaternary Research Center, University of Washington, Seattle, WA 98185, USA. grayson@uw.edu.
• ² Department of Anthropology, Southern Methodist University, Dallas, TX 75275, USA.
• ³ School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA.
• ⁴ Museum of Anthropological Archaeology, University of Michigan, Ann Arbor, MI 48109, USA.
• ⁵ Department of Anthropology, University of Nevada, Reno, NV 89557, USA.
• ⁶ Department of Anthropology, University of Utah, Salt Lake City, UT 84112, USA.
• ⁷ Program in Human Ecology and Archaeobiology and Smithsonian Tropical Research Institute (Panama), National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA.
• ⁸ Santa Fe Institute, Santa Fe, NM 87501, USA.
• ⁹ Program in Human Ecology and Archaeobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA.
• ¹⁰ Division of Anthropology, American Museum of Natural History, New York, NY 10024, USA.
• ¹¹ Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen K, Denmark.