Bibliography and Index of the Sirenia and Desmostylia  

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"Price, Samantha A."

 
 
 Bininda-Emonds, Olaf R.P.; Cardillo, Marcel; Jones, Kate E.; MacPhee, Ross D.E.; Beck, Robin M.D.; Grenyer, Richard; Price, Samantha A.; Vos, Rutger A.; Gittleman, John L.; Purvis, Andy (detail)
   
2007
The delayed rise of present-day mammals.
Nature 446: 507-512. 2 figs. 1 table + online supplementary data. https://www.nature.com/articles/nature05634 Mar. 29, 2007.
–ABSTRACT: Did the end-Cretaceous mass extinction, by wiping out non-avian dinosaurs and most of the existing fauna, trigger the evolutionary radiation of present-day mammals? Here we construct, date and analyse the first species-level phylogeny of nearly all extant Mammalia to bring a new perspective to this question. Our analyses of how extant lineages accumulated through time show that net per-lineage diversification rates barely change across the Cretaceous-Tertiary boundary. Instead, rates spike significantly with the origins of the currently recognized placental superorders and orders ~89 million years ago before falling and remaining low until accelerating again throughout the Eocene and Oligocene. Our results show that the phylogenetic fuses leading to the explosion of extant placental orders are not only very much longer than suspected previously, but also challenge the hypothesis that the end-Cretaceous mass extinction event had a major, direct influence on the diversification of today's mammals.
  Times of origin of, initial diversification within, and phylogenetic fuse lengths for major mammalian lineages (in Ma ± 95% confidence interval): Statistics for the Sirenia: crown-group size = 4 species; time of origin: 74.1 ± 3.9 Ma; time of basal diversification = 52.2 ± 14.3 Ma; waiting time to first split: absolute = 21.9 Ma; % = 29.6
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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