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Article

Strong mitochondrial DNA support for a Cretaceous origin of modern avian lineages.

BMC biology - 28 Jan 2008

Brown Joseph W, Rest Joshua S, García-Moreno Jaime, Sorenson Michael D, Mindell David P

Abstract excerpt

BACKGROUND: Determining an absolute timescale for avian evolutionary history has proven contentious. The two sources of information available, paleontological data and inference from extant molecular genetic sequences (colloquially, 'rocks' and 'clocks'), have appeared irreconcilable; the fossil record supports a Cenozoic origin for most modern lineages, whereas molecular genetic estimates suggest that these same...

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PMID: 18226223
DOI: 10.1186/1741-7007-6-6
PMCID: PMC2267772

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