Eleven authors contributed to the manuscript that is
scheduled to be
published in Nature: Dr. Steve Holen, director of research at the Center for American Paleolithic Research; Dr. Tom Deméré, curator of paleontology and director of PaleoServices at the San Diego
Natural History Museum; Dr. Daniel Fisher, professor of paleontology and director and curator of the Museum of Paleontology at the University of Michigan; Dr. Richard Fullagar, professorial research fellow at the Centre for Archaeological Science at the University of Wollongong, Australia; Dr. James Paces, research geologist at the U.S. Geological Survey; Kathleen Maule Holen, administrative director at the Center for American Paleolithic Research; Dr. Jared Beeton, professor of physical geography at Adams State University; Dr. Adam Rountrey, collection manager in the Museum of Paleontology at the University of Michigan; George T. Jefferson, district staff paleontologist at