Strong mitochondrial DNA support for a Cretaceous origin of modern avian lineages

  title={Strong mitochondrial DNA support for a Cretaceous origin of modern avian lineages},
  author={J. W. Brown and J. Rest and Jaime Garc{\'i}a-Moreno and M. Sorenson and D. Mindell},
  journal={BMC Biology},
  pages={6 - 6}
  • J. W. Brown, J. Rest, +2 authors D. Mindell
  • Published 2008
  • Biology, Medicine
  • BMC Biology
  • BackgroundDetermining an absolute timescale for avian evolutionary history has proven contentious. The two sources of information available, paleontological data and inference from extant molecular genetic sequences (colloquially, 'rocks' and 'clocks'), have appeared irreconcilable; the fossil record supports a Cenozoic origin for most modern lineages, whereas molecular genetic estimates suggest that these same lineages originated deep within the Cretaceous and survived the K-Pg (Cretaceous… CONTINUE READING
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