title: The comparative method for evaluating fossil calibration dates: a reply to Hedges and Kumar.
authors.forename: Robert R
authors.initials: RR
authors.lastname: Reisz
authors.forename: Johannes
authors.initials: J
authors.lastname: Müller
mesh_terms: D000818:Animals; D001717:Birds; D002138:Calibration; D019143:Evolution, Molecular; D005580:Fossils; D008322:Mammals; D010802:Phylogeny; D013997:Time Factors