Establishing a time-scale for plant evolution.

@article{Clarke2011EstablishingAT,
  title={Establishing a time-scale for plant evolution.},
  author={John T. Clarke and Rachel C. M. Warnock and Philip C. J. Donoghue},
  journal={The New phytologist},
  year={2011},
  volume={192 1},
  pages={
          266-301
        }
}
• Plants have utterly transformed the planet, but testing hypotheses of causality requires a reliable time-scale for plant evolution. While clock methods have been extensively developed, less attention has been paid to the correct interpretation and appropriate implementation of fossil data. • We constructed 17 calibrations, consisting of minimum constraints and soft maximum constraints, for divergences between model representatives of the major land plant lineages. Using a data set of seven… 

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