The MP-EST consensus tree for the mammal dataset. A consensus tree was constructed from the species trees estimated by the MP-EST method for 1000 bootstrap datasets using Majority-Rule-extension (MRe) in CONSENSUS from the PHYLIP package. The numbers on the branches are bootstrap proportions based on 1000 replicates. There are four monophyletic clades: Laurasiatheria (blue), Euarchontoglires (red), Xenarthra (gray), Afrotheria (green). The outgroup opossum has been excluded.