The fluted projectile points, dating back 13,000 years, show that ancestral Indigenous people not only lived in North America but also had the technology to hunt megafauna like woolly mammoths and large Pleistocene bison.
has uncovered stemmed projectile points that are 3,000 years older than Clovis. Researchers used radiocarbon dating on pieces of animal bone found next to the points at the Cooper's Ferry site in western Idaho. The discovery means that humans were here earlier than we thought —16,000 years ago — and already had the technology for hunting large game.
Davis has been working at the Cooper's Ferry site since 1997. He says that as his team digs deeper, each "pit feature," or separate grouping of tools, artifacts, points and bones, have been older, moving from around 13,250 to 14,000 and, most recently, 16,000 years. "The deeper we dig, the older the artifacts," he says.The site is likely home to such a rich history largely because of the shape of the glaciers that blanketed North America at the time, says Davis.
, executive director of the Great Basin Paleoindian Research Unit at the University of Nevada Reno, who was not involved in the study.Smith agrees that the evidence gathered by Davis and his team shows that much of the passage into the Americas was most likely made along the Pacific Coast. "People seemed to have been able to travel along the coast accessing habitable terrain and food sources for much of that passage," he says.
There's still a lot we don't know about how early peoples made their way to North America. But we're learning more and more about when they came and the technology they had upon their arrival. While we might never know the full picture, what we've already learned continues to leave Davis and his colleagues in awe. "Each time I think I couldn't be more amazed we find something new, and I have to adjust my level of excitement," he says.
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