Avian evolution, Gondwana biogeography and the Cretaceous–Tertiary mass extinction event

  title={Avian evolution, Gondwana biogeography and the Cretaceous–Tertiary mass extinction event},
  author={Joel Cracraft},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  pages={459 - 469}
  • J. Cracraft
  • Published 7 March 2001
  • Environmental Science, Geography, Biology
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
The fossil record has been used to support the origin and radiation of modern birds (Neornithes) in Laurasia after the Cretaceous–Tertiary mass extinction event, whereas molecular clocks have suggested a Cretaceous origin for most avian orders. These alternative views of neornithine evolution are examined using an independent set of evidence, namely phylogenetic relationships and historical biogeography. Phylogenetic relationships of basal lineages of neornithines, including ratite birds and… 

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