Researchers obtained 71 radiocarbon dates throughout the Page-Ladson sediment sequence, and the artifact deposit was covered by four meters of sediment and a shell layer dated to 14,400 years ago.
Sources
- Discovery Points to Earlier Arrival of First Americans (nationalgeographic.com)
- https://www.science.org/doi/10.1126/sciadv.1600375 (science.org)
- https://pubmed.ncbi.nlm.nih.gov/27386553/ (pubmed.ncbi.nlm.nih.gov)
- https://news.umich.edu/new-evidence-that-humans-settled-in-southeastern-us-far-earlier-than-previously-believed/ (news.umich.edu)
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