Geochronology: Age of Mexican ash with alleged ‘footprints’

  title={Geochronology: Age of Mexican ash with alleged ‘footprints’},
  author={P. Renne and J. Feinberg and M. Waters and J. Arroyo-Cabrales and Patricia Ochoa-Castillo and Mario Perez-Campa and K. Knight},
Arising from: R. Dalton doi: 10.1038/news050704-4 (2005)10.1038/news050704-4A report of human footprints preserved in 40,000-year-old volcanic ash near Puebla, Mexico (, was the subject of a press conference that stirred international media attention. If the claims ( of Gonzalez et al. are valid, prevailing theories about the timing of human migration into the Americas would need significant revision. Here we… Expand
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