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Coxcatlan Cave

Tehuacán Valley cave whose lowest layer yielded animal bone radiocarbon-dated to roughly 33,000-28,000 years ago, far older than its long-accepted occupation; human origin of the bones is unconfirmed.

Dated events and their evidence

• 31,000 BCE disputed
  Oldest radiocarbon date (33,448 years BP) on bone from the cave's deepest layer; researchers caution that cut marks, burning or tools confirming human handling have not yet been demonstrated source
• 26,000 BCE disputed
  Youngest radiocarbon date (28,279 years BP) in the same reported range for the deepest layer source

Where

18.2672° N, 97.1492° W

Sources

• https://allthatsinteresting.com/first-americans

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