Mid-Miocene cooling and the extinction of tundra in continental Antarctica.

@article{Lewisa2008MidMioceneCA,
  title={Mid-Miocene cooling and the extinction of tundra in continental Antarctica.},
  author={Adam R. Lewisa and David R. Marchanta and Allan C. Ashworthc and Lars Heden{\"a}se and Sidney R. Hemmingf and Jesse V. Johnsong and Melanie J. Lengh and Malka L. Machlusf and Angela E. Newtoni and J. Ian Rainej and Jane K. Willenbringk and Mark Williamsl and Alexander P. Wolfem},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2008},
  volume={105 31},
  pages={10676-80}
}
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions. Here, we report the discovery of exceptionally well preserved fossils of lacustrine and terrestrial organisms from the McMurdo Dry Valleys sector of the Transantarctic Mountains for which we have established a precise radiometric chronology. The fossils, which include diatoms, palynomorphs, mosses, ostracodes, and insects, represent the… CONTINUE READING
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