Land-plant diversity and the end-Permian mass extinction

  title={Land-plant diversity and the end-Permian mass extinction},
  author={P. McAllister Rees},
  • P. Rees
  • Published 1 September 2002
  • Environmental Science, Geography
  • Geology
The Permian and Triassic represent a time of major global climate change from icehouse to hothouse conditions and significant (∼25°) northward motion of landmasses amalgamated in essentially one supercontinent, Pangea. The greatest of all mass extinctions occurred around the Permian-Triassic boundary (251 Ma), although there is no consensus regarding the cause(s). Recent studies have suggested a meteor impact and worldwide die-off of vegetation, on the basis of sparse local observations… 

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