The Age of the Sahara Desert

@article{Schuster2006TheAO,
  title={The Age of the Sahara Desert},
  author={Mathieu Schuster and Philippe Duringer and Jean‐François Ghienne and Patrick Vignaud and Hassan Taisso Mackaye and Andossa Likius and Michel Brunet},
  journal={Science},
  year={2006},
  volume={311},
  pages={821 - 821}
}
In the Sahara region, the age of onset of the desert condition has been uncertain until now. Here we report on the discovery of 7,000,000-year-old eolian dune deposits from the northern Chad Basin. This geological archive is the oldest known evidence for desert occurrence in the Sahara. 
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