In episode 330 of The Archeology Show, we discuss the latest controversy over the site of Monte Verde in southern Chile, long considered a cornerstone pre-Clovis site dated to about 14,500 BP. We summarize a March 2026 study led by Todd Surovell arguing the key occupation layer is much younger (about 8,200–4,200 years ago) based on geological and stratigraphic analyses, including an 11,000-year-old tephra layer allegedly beneath deposits, claims of redeposited older wood from erosion and flooding, and luminescence dating of nearby sediments. We then review strong criticism, including scathing critiques from about 30 researchers including Tom Dillehay (author of the original work), disputing sampling locations, assumptions about redeposition, and whether the tephra identification is correct. It seems like both sides raise points but more collaborative research is needed before rewriting interpretations of early human peopling of the Americas.

When did humans arrive in the Americas? A new study reignites the debate

A mid-Holocene age for Monte Verde challenges the timeline of human colonization of South America (Not open access)

ScienceAdviser: New dating of ancient Chilean site reopens old wounds

Study suggests younger age for Chile's important Monte Verde archaeological site

'Speculation' and 'egregious failure': 30 researchers publish scathing critiques of study that questioned date of early human occupation of Monte Verde in Chile

Chris Webster

Rachel Roden

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