Article
Xenopus in Space and Time: Fossils, Node Calibrations, Tip-Dating, and Paleobiogeography.
Cytogenetic and genome research - 1 Jan 2015
Cannatella David
Abstract excerpt
Published data from DNA sequences, morphology of 11 extant and 15 extinct frog taxa, and stratigraphic ranges of fossils were integrated to open a window into the deep-time evolution of Xenopus. The ages and morphological characters of fossils were used as independent datasets to calibrate a chronogram. We found that DNA sequences, either alone or in combination with morphological data and fossils, tended to...
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