Green Web or megabiased clock? Plant fossils from Gondwanan Patagonia speak on evolutionary radiations.

@article{Wilf2015GreenWO,
  title={Green Web or megabiased clock? Plant fossils from Gondwanan Patagonia speak on evolutionary radiations.},
  author={Peter Wilf and Ignacio H Escapa},
  journal={The New phytologist},
  year={2015},
  volume={207 2},
  pages={283-90}
}
Evolutionary divergence-age estimates derived from molecular 'clocks' are frequently correlated with paleogeographic, paleoclimatic and extinction events. One prominent hypothesis based on molecular data states that the dominant pattern of Southern Hemisphere biogeography is post-Gondwanan clade origins and subsequent dispersal across the oceans in a metaphoric 'Green Web'. We tested this idea against well-dated Patagonian fossils of 19 plant lineages, representing organisms that actually lived… CONTINUE READING
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