Publication Date:
2013-08-10
Description:
O'Leary et al. (Research Article, 8 February 2013, p. 662) examined mammalian relationships and divergence times and concluded that a single placental ancestor crossed the Cretaceous-Paleogene (K-Pg) boundary. This conclusion relies on phylogenetic analyses that fail to discriminate between homology and homoplasy and further implies virus-like rates of nucleotide substitution in early Paleocene placentals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Springer, Mark S -- Meredith, Robert W -- Teeling, Emma C -- Murphy, William J -- New York, N.Y. -- Science. 2013 Aug 9;341(6146):613. doi: 10.1126/science.1238025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, Riverside, CA 92521, USA. mark.springer@ucr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23929967" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
*Biological Evolution
;
Female
;
*Fossils
;
*Mammals
;
*Phylogeny
;
Pregnancy
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
