Calibrating and constraining molecular clocks

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Calibrating and constraining molecular clocks Pp. 35-86. In The timetree of Life, S. B. Hedges & S. Kumar (eds), OUP, 2009 In dating phylogenetic trees, it is important to work to the strengths of paleontology and molecular phylogeny estimation. Minimum constraints on calibrations (i.e., the oldest fossils in a crown clade) may be calculated with some precision and may be treated as hard bounds, while maximum constraints are soft bounds that may be represented most honestly by probability distributions that reflect the distribution of fossiliferous rocks around the time in question, but allow a small probability of truly ancient dates as well. We present detailed documentation of 63 key calibration dates, with thorough evidence and error expressions, for a wide range of organisms.
Translated title of the contributionCalibrating and constraining molecular clocks
Original languageEnglish
Title of host publicationThe timetree of Life
EditorsHedges , S. B., S Kumar
PublisherOxford University Press
Pages35 - 86
Number of pages41
ISBN (Print)0199535035
Publication statusPublished - 2009

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