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dc.contributor.author
Wilf, Peter
dc.contributor.author
Escapa, Ignacio Hernan
dc.date.available
2016-05-10T20:40:42Z
dc.date.issued
2015-07
dc.identifier.citation
Wilf, Peter; Escapa, Ignacio Hernan; Green Web or megabiased clock? Plant fossils from Gondwanan Patagonia speak on evolutionary radiations; Wiley; New Phytologist; 207; 2; 7-2015; 283-290
dc.identifier.issn
0028-646X
dc.identifier.uri
http://hdl.handle.net/11336/5615
dc.description.abstract
Evolutionary divergence-age estimates derived from molecular ‘clocks’ are frequently correlated with paleogeographic, paleoclimatic and extinction events. One prominent hypothesis based on molecular data states that the dominant pattern of Southern Hemisphere biogeography is post-Gondwanan clade origins and subsequent dispersal across the oceans in a metaphoric ‘Green Web’. We tested this idea against well-dated Patagonian fossils of 19 plant lineages, representing organisms that actually lived on Gondwana. Most of these occurrences are substantially older than their respective, often post-Gondwanan molecular dates. The Green Web interpretation probably results from directional bias in molecular results. Gondwanan history remains fundamental to understanding Southern Hemisphere plant radiations, and we urge significantly greater caution when using molecular dating to interpret the biological impacts of geological events.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Divergence Dating
dc.subject
Evolutionary Radiations
dc.subject
Geochronology
dc.subject
Gondwana
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Molecular Clocks
dc.subject
Paleobotany
dc.subject
Patagonia
dc.subject.classification
Paleontología
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Green Web or megabiased clock? Plant fossils from Gondwanan Patagonia speak on evolutionary radiations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-04-28T14:51:24Z
dc.journal.volume
207
dc.journal.number
2
dc.journal.pagination
283-290
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Wilf, Peter. State University Of Pennsylvania; Estados Unidos
dc.description.fil
Fil: Escapa, Ignacio Hernan. Museo Paleontológico Egidio Feruglio; Argentina. State University Of Pennsylvania; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.journal.title
New Phytologist
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/nph.13114/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/nph.13114
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/10.1111/nph.13114
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