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dc.contributor.author
Alvarez, Alicia  
dc.contributor.author
Ercoli, Marcos Darío  
dc.contributor.author
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  
dc.subject
FOSSILS  
dc.subject
MANDIBULAR SHAPE  
dc.subject
MORPHOLOGICAL INTEGRATION  
dc.subject
SHAPE OPTIMIZATION  
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
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