Murphy, W. J., Janecka, J. E., Stadler, T., Eizirik, E., Ryder, O. A., Gatesy, J., Meredith, R. W., & Springer, M. S. (2012). Response to Comment on “Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification.” Science, 337(6090), 34.2-34.
Bininda-Emonds and Purvis reanalyzed our mammalian phylogenetic supermatrix and claim that our results are not significantly different from their delayed-rise hypothesis. We show that our divergence times are ~11 million years later for placental inter- and intraordinal divergences—consistent with a post–Cretaceous-Paleogene (KPg) radiation of most modern mammalian orders—and find no support for the early Eocene delayed-rise hypothesis.