Early Animal Evolution: Emerging Views from Comparative Biology and Geology

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Early Animal Evolution: Emerging Views from Comparative Biology and Geology

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Title: Early Animal Evolution: Emerging Views from Comparative Biology and Geology
Author: Carroll, Sean B.; Knoll, Andrew

Note: Order does not necessarily reflect citation order of authors.

Citation: Knoll, Andrew H., and Sean B. Carroll. 1999. Early animal evolution: Emerging views from comparative biology and geology. Science 284(5423): 2129-2137.
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Abstract: The Cambrian appearance of fossils representing diverse phyla has long inspired hypotheses about possible genetic or environmental catalysts of early animal evolution. Only recently, however, have data begun to emerge that can resolve the sequence of genetic and morphological innovations, environmental events, and ecological interactions that collectively shaped Cambrian evolution. Assembly of the modern genetic tool kit for development and the initial divergence of major animal clades occurred during the Proterozoic Eon. Crown group morphologies diversified in the Cambrian through changes in the genetic regulatory networks that organize animal ontogeny. Cambrian radiation may have been triggered by environmental perturbation near the Proterozoic-Cambrian boundary and subsequently amplified by ecological interactions within reorganized ecosystems.
Published Version: http://dx.doi.org/10.1126/science.284.5423.2129
Other Sources: http://bill.srnr.arizona.edu/classes/182/PDF_Files/KnollCarroll.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3054827

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  • FAS Scholarly Articles [6948]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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