reference : Early animal evolution: Emerging views from comparative biology and geology

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/reference/0e728a28-e469-4d99-b605-e021e63fee74
Bibliographic fields
reftype Journal Article
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.%U
Author Knoll, Andrew H.; Carroll, Sean B.
DOI 10.1126/science.284.5423.2129
Issue 5423
Journal Science
Pages 2129-2137
Title Early animal evolution: Emerging views from comparative biology and geology
Volume 284
Year 1999
Bibliographic identifiers
.reference_type 0
_record_number 20029
_uuid 0e728a28-e469-4d99-b605-e021e63fee74