Fossil calibration dates

Range Table - link Myr
Organism Mammals
Reference Nabholz B, Glemin S, Galtier N. 2008. Strong variations of mitochondrial mutation rate across mammals—the longevity hypothesis. Mol Biol Evol 25: 120–130 p.122 table 1PubMed ID17998254
Primary Source See refs beneath table
Method Abstract: "Using an extensive cytochrome b data set, fossil data, and taking advantage of the decoupled dynamics of synonymous and nonsynonymous substitutions, [investigators] measure the lineage-specific mitochondrial mutation rate across 1,696 mammalian species and compare it with the nuclear rate."
Comments P.122 left column 3rd paragraph: "Groups were dated by applying MULTIDIVTIME to amino acid sequences (model mtREV + Gamma). The Monte Carlo Markov Chain was run for 200,000 generations after a burn-in of 200,000 generations. The 22 fossils calibration points [investigators] used are given in table 1." P.126 right column 2nd paragraph: "It should be noted that the oldest divergences are not used to estimate substitution rates because third codon positions are only analyzed within groups of relatively recent origin. Standard deviations around the estimated dates are significantly larger in this study than in multigene analyses, presumably because a single gene is used. [Investigators] incorporated as many fossil calibration points as possible (table 1) and by this way obtained reasonable estimates for recent dates."
Entered by Uri M
ID 112709