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dc.contributor.author
Alvarez, Alicia
dc.contributor.author
Ercoli, Marcos Darío
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Verzi, Diego Hector
dc.date.available
2021-01-18T23:39:50Z
dc.date.issued
2019-10
dc.identifier.citation
Alvarez, Alicia; Ercoli, Marcos Darío; Verzi, Diego Hector; Integration and diversity of the caviomorph mandible (Rodentia: Hystricomorpha): Assessing the evolutionary history through fossils and ancestral shape reconstructions; Wiley Blackwell Publishing, Inc; Zoological Journal of the Linnean Society; 188; 1; 10-2019; 276-301
dc.identifier.issn
0024-4082
dc.identifier.uri
http://hdl.handle.net/11336/122961
dc.description.abstract
Caviomorph rodents constitute a highly diverse clade of Neotropical mammals. They are recorded since at least the late Middle Eocene and have a long and complex evolutionary history. Using geometric morphometric data, we analysed the variation in mandibular shape of this clade through integration analyses, allometry and shape optimizations onto a phylogenetic tree of 104 extant and extinct species. The analyses of shape variation revealed a strong influence of phylogenetic structure and life habits. A remarkable allometric effect was observed for specific mandibular traits. Morphological changes occurring in the alveolar and muscular functional units were moderately associated. Interestingly, the coordinated evolution of these two functional units was decoupled in the clade of extant abrocomids. A sequential and nearly synchronic acquisition of convergent traits has occurred in chinchillids and derived cavioids since at least the early Middle Oligocene, probably derived from grass-feeding habits or similar adaptations to other abrasive items. Convergences between fossorial taxa evolved in two main events through the Oligocene and middle Late Miocene. Morphological analysis of the fossil representatives allowed a better understanding of the timing of trait acquisitions during the evolutionary history of caviomorphs and its relationship with global and regional palaeoenvironmental changes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CAVIOMORPHS
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FOSSILS
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MANDIBULAR SHAPE
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MORPHOLOGICAL INTEGRATION
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SHAPE OPTIMIZATION
dc.subject.classification
Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Integration and diversity of the caviomorph mandible (Rodentia: Hystricomorpha): Assessing the evolutionary history through fossils and ancestral shape reconstructions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-18T20:46:20Z
dc.journal.volume
188
dc.journal.number
1
dc.journal.pagination
276-301
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Alvarez, Alicia. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina. Universidad Nacional de Jujuy. Instituto de Geología Minera; Argentina
dc.description.fil
Fil: Ercoli, Marcos Darío. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina. Universidad Nacional de Jujuy. Instituto de Geología Minera; Argentina
dc.description.fil
Fil: Verzi, Diego Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina
dc.journal.title
Zoological Journal of the Linnean Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/zoolinnean/zlz071
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/advance-article-abstract/doi/10.1093/zoolinnean/zlz071/5581573
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