Fossils and plant phylogeny.

  title={Fossils and plant phylogeny.},
  author={Peter R. Crane and Patrick S. Herendeen and Else Marie Friis},
  journal={American journal of botany},
  volume={91 10},
Developing a detailed estimate of plant phylogeny is the key first step toward a more sophisticated and particularized understanding of plant evolution. At many levels in the hierarchy of plant life, it will be impossible to develop an adequate understanding of plant phylogeny without taking into account the additional diversity provided by fossil plants. This is especially the case for relatively deep divergences among extant lineages that have a long evolutionary history and in which much of… 

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