The earliest settlers of Mesoamerica date back to the late Pleistocene

  title={The earliest settlers of Mesoamerica date back to the late Pleistocene},
  author={Wolfgang Stinnesbeck and Julia Becker and F{\'a}bio Adriano Hering and Eberhard Frey and Arturo H. Gonz{\'a}lez Gonz{\'a}lez and Jens Fohlmeister and Sarah R. Stinnesbeck and Norbert Frank and Alejandro Terrazas Mata and Martha Elena Benavente and Jer{\'o}nimo Avil{\'e}s Olgu{\'i}n and Eugenio Aceves N{\'u}{\~n}ez and Patrick Zell and Michael Deininger},
  journal={PLoS ONE},
Preceramic human skeletal remains preserved in submerged caves near Tulum in the Mexican state of Quintana Roo, Mexico, reveal conflicting results regarding 14C dating. Here we use U-series techniques for dating a stalagmite overgrowing the pelvis of a human skeleton discovered in the submerged Chan Hol cave. The oldest closed system U/Th age comes from around 21 mm above the pelvis defining the terminus ante quem for the pelvis to 11311±370 y BP. However, the skeleton might be considerable… 

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