From Newsgroup: sci.anthropology.paleo
https://www.science.org/content/article/debate-explodes-over-age-key-south-american-archaeological-site
...
rCL[Monte Verde] broke the pre-Clovis barrier,rCY says
Ben Potter, an archaeologist at the University of
Alaska Fairbanks. rCLUp until now, itrCOs been seen as
the bedrock.rCY
A study out today in Science (which has a related
Perspective) aims to shatter that bedrock. It
suggests the stratigraphic layers at Monte Verde
are scrambled, with older wood and other organic
material mixed into younger sediments, resulting
in misleading radiocarbon dates. The site is just
8200 to 4200 years old, the study concludes.
...
https://www.science.org/doi/10.1126/science.adw9217
A mid-Holocene age for Monte Verde challenges the
timeline of human colonization of South America
--- Synchronet 3.21f-Linux NewsLink 1.2