Early Animal Evolution: Emerging Views from Comparative Biology and Geology

Early Animal Evolution: Emerging Views from Comparative Biology and Geology

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Early Animal Evolution: Emerging Views from Comparative Biology and Geology

dc.contributor.author	Carroll, Sean B.
dc.contributor.author	Knoll, Andrew
dc.date.accessioned	2009-06-08T19:02:59Z
dc.date.issued	1999
dc.identifier.citation	Knoll, Andrew H., and Sean B. Carroll. 1999. Early animal evolution: Emerging views from comparative biology and geology. Science 284(5423): 2129-2137.	en
dc.identifier.issn	0193-4511	en
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:3054827
dc.description.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.	en
dc.description.sponsorship	Organismic and Evolutionary Biology	en
dc.language.iso	en_US	en
dc.publisher	American Association for the Advancement of Science	en
dc.relation.isversionof	http://dx.doi.org/10.1126/science.284.5423.2129	en
dc.relation.hasversion	http://bill.srnr.arizona.edu/classes/182/PDF_Files/KnollCarroll.pdf
dash.license	META_ONLY
dc.title	Early Animal Evolution: Emerging Views from Comparative Biology and Geology	en
dc.relation.journal	Science	en
dash.depositing.author	Knoll, Andrew
dash.embargo.until	10000-01-01