Topology, divergence dates, and macroevolutionary inferences vary between different tip-dating approaches applied to fossil theropods (Dinosauria) Bapst, D. W. Wright, April Wright, A. M. Matzke, N. J. Lloyd, G. T.
dc.contributor.department Ecology, Evolution and Organismal Biology 2018-02-18T11:44:46.000 2020-06-30T02:17:13Z 2020-06-30T02:17:13Z Fri Jan 01 00:00:00 UTC 2016 2016-07-01
dc.description.abstract <p>Dated phylogenies of fossil taxa allow palaeobiologists to estimate the timing of major divergences and placement of extinct lineages, and to test macroevolutionary hypotheses. Recently developed Bayesian ‘tip-dating’ methods simultaneously infer and date the branching relationships among fossil taxa, and infer putative ancestral relationships. Using a previously published dataset for extinct theropod dinosaurs, we contrast the dated relationships inferred by several tip-dating approaches and evaluate potential downstream effects on phylogenetic comparative methods. We also compare tip-dating analyses to maximum-parsimony trees time-scaled via alternative a posteriori approaches including via the probabilistic cal3 method. Among tip-dating analyses, we find opposing but stronglysupported relationships, despite similarity in inferred ancestors. Overall, tip-dating methods infer divergence dates often millions (or tens of millions) of years older than the earliest stratigraphic appearance of that clade. Model-comparison analyses of the pattern of body-size evolution found that the support for evolutionary mode can vary across and between treesamples from cal3 and tip-dating approaches. These differences suggest that model and software choice in dating analyses can have a substantial impact on the dated phylogenies obtained and broader evolutionary inferences.</p>
dc.description.comments <p>This is a manuscript of an article from <em>Biology Letters </em>12 (2016): 20160237, doi: <a href="" target="_blank">10.1098/rsbl.2016.0237</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1214
dc.identifier.contextkey 10195561
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath eeob_ag_pubs/211
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:34:45 UTC 2022
dc.source.uri 10.1098/rsbl.2016.0237
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Evolution
dc.subject.disciplines Genetics
dc.subject.keywords tip-dating
dc.subject.keywords divergence dates
dc.subject.keywords phylogenetic comparative methods
dc.subject.keywords theropods
dc.title Topology, divergence dates, and macroevolutionary inferences vary between different tip-dating approaches applied to fossil theropods (Dinosauria)
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 6fa4d3a0-d4c9-4940-945f-9e5923aed691
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