The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals

  title={The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals},
  author={Maureen A. OLeary and J. Bloch and J. Flynn and T. Gaudin and A. Giallombardo and N. Giannini and S. L. Goldberg and Brian P. Kraatz and Zhe-Xi Luo and J. Meng and Xijun Ni and M. Novacek and F. Perini and Zachary S Randall and G. W. Rougier and E. Sargis and M. Silcox and N. Simmons and M. Spaulding and Pa{\'u}l M. Velazco and M. Weksler and J. Wible and Andrea L. Cirranello},
  pages={662 - 667}
  • Maureen A. OLeary, J. Bloch, +20 authors Andrea L. Cirranello
  • Published 2013
  • Biology, Medicine
  • Science
  • Let There Be Mammals The timing of the evolution and radiation of placental mammals and their most recent common ancestor has long been debated, with many questions surrounding the relationships of groups that pre- and postdate the Cretaceous-Paleogene boundary (66 million years ago). While the fossil record suggests that placental mammals radiated after the Cretaceous, molecular clocks have consistently placed the ancestors of mammalian lineages earlier. O'Leary et al. (p. 662; see the… CONTINUE READING
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