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Novelty and Innovation in the History of Life

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dc.contributor.author Erwin, Douglas H. en
dc.date.accessioned 2015-10-26T12:12:11Z
dc.date.available 2015-10-26T12:12:11Z
dc.date.issued 2015
dc.identifier.citation Erwin, Douglas H. 2015. "<a href="https://repository.si.edu/handle/10088/27467">Novelty and Innovation in the History of Life</a>." <em>Current Biology</em>. 25 (19):<a href="https://doi.org/10.1016/j.cub.2015.08.019">https://doi.org/10.1016/j.cub.2015.08.019</a> en
dc.identifier.issn 0960-9822
dc.identifier.uri http://hdl.handle.net/10088/27467
dc.description.abstract The history of life as documented by the fossil record encompasses evolutionary diversifications at scales ranging from the Ediacaran Cambrian explosion of animal life and the invasion of land by vascular plants, insects and vertebrates to the diversification of flowering plants over the past 100 million years and the radiation of horses. Morphological novelty and innovation has been a recurrent theme. The architects of the modern synthesis of evolutionary theory made three claims about evolutionary novelty and innovation: first, that all diversifications in the history of life represent adaptive radiations; second, that adaptive radiations are driven principally by ecological opportunity rather than by the supply of new morphological novelties, thus the primary questions about novelty and innovation focus on their ecological and evolutionary success; and third, that the rate of morphological divergence between taxa was more rapid early in the history of a clade but slowed over time as ecological opportunities declined. These claims have strongly influenced subsequent generations of evolutionary biologists, yet over the past two decades each has been challenged by data from the fossil record, by the results of comparative phylogenetic analyses and through insights from evolutionary developmental biology. Consequently a broader view of novelty and innovation is required. An outstanding issue for future work is identifying the circumstances associated with different styles of diversification and whether their frequency has changed through the history of life. en
dc.relation.ispartof Current Biology en
dc.title Novelty and Innovation in the History of Life en
dc.type Journal Article en
dc.identifier.srbnumber 137566
dc.identifier.doi 10.1016/j.cub.2015.08.019
rft.jtitle Current Biology
rft.volume 25
rft.issue 19
dc.description.SIUnit NH-Paleobiology en
dc.description.SIUnit NMNH en
dc.description.SIUnit Peer-reviewed en


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