Recent Synchronous Radiation of a Living Fossil

@article{Nagalingum2011RecentSR,
  title={Recent Synchronous Radiation of a Living Fossil},
  author={Nathalie S. Nagalingum and Charles R. Marshall and Tiago Bosisio Quental and Hardeep Singh Rai and Damon P. Little and Sarah Mathews},
  journal={Science},
  year={2011},
  volume={334},
  pages={796 - 799}
}
Despite their ancient origin, the majority of extant cycad species radiated within the past 10 million years. Modern survivors of previously more diverse lineages are regarded as living fossils, particularly when characterized by morphological stasis. Cycads are often cited as a classic example, reaching their greatest diversity during the Jurassic–Cretaceous (199.6 to 65.5 million years ago) then dwindling to their present diversity of ~300 species as flowering plants rose to dominance. Using… Expand
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