Tree of life reveals clock-like speciation and diversification
Molecular Biology and Evolution (2015) - Comments
pubmed: 25739733  doi: 10.1093/molbev/msv037  issn: 1537-1719  issn: 0737-4038 

S. Blair Hedges, Julie Marin, Michael Suleski, Madeline Paymer, Sudhir Kumar