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Molecular evidence for the early divergence of placental mammals

Easteal, Simon


Paleontological and molecular data suggest quite different patterns for the early evolution of placental mammals. Paleontological evidence indicates a radiation, with most of the extant orders diverging at approximately the same time, close to the Cretaceous-Tertiary boundary, 65 Myr ago. Molecular evidence suggests a branching pattern of evolution that started much earlier. Resolving this discrepancy requires a consideration of the assumptions that underlie both approaches. It is argued here...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Bioessays
DOI: 10.1002/(SICI)1521-1878(199912)22:1<1052::AID-BIES9>3.0.CO;2-6


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