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dc.contributor.author
de Santi, Nahuel Antu
dc.contributor.author
Verzi, Diego Hector
dc.contributor.author
Olivares, Adriana Itati
dc.contributor.author
Piñero García, Pedro
dc.contributor.author
Alvarez, Alicia
dc.contributor.author
Morgan, Cecilia Clara
dc.date.available
2022-04-28T11:50:12Z
dc.date.issued
2021-05
dc.identifier.citation
de Santi, Nahuel Antu; Verzi, Diego Hector; Olivares, Adriana Itati; Piñero García, Pedro; Alvarez, Alicia; et al.; A new Pleistocene Ctenomys and divergence dating of the hyperdiverse South American rodent family Ctenomyidae; Cambridge University Press; Journal of Systematic Palaeontology; 19; 5-2021; 377-392
dc.identifier.issn
1477-2019
dc.identifier.uri
http://hdl.handle.net/11336/155969
dc.description.abstract
The South American Ctenomys is the most speciose genus among both hystricomorphs and subterranean rodents of the world. Here, we present the most exhaustive phylogenies and timetree of living and extinct Ctenomys attempted thus far. We describe Ctenomys rusconii sp. nov., a small-sized species from the upper Early Pleistocene of central Argentina. We analyse its cranial and mandibular shape as well as its phylogenetic position in the context of other extinct Ctenomys and a wide sample of living species. A parsimony analysis shows that Ctenomys rusconii sp. nov. integrates the stem group of Ctenomys together with late Pliocene to Middle Pleistocene species, while the crown group comprises only Middle Pleistocene to recent representatives. Within the crown Ctenomys, nine well-supported major clades were recovered, eight of which are consistent with previously recognized extant species groups. A Bayesian tipdating analysis provided divergence age estimates of 3.8Ma and 1.3Ma for the origin of the genus and the crown clade, respectively. Remarkably, the extinct species recovered as members of the crown clade, i.e. C. dasseni, C. kraglievichi, C. subassentiens and C. viarapaensis, were clustered into the earliest diverging clade corresponding to the frater species group. Age estimates for the divergence of the crown and its major clades are markedly younger than what has been generally considered so far, which implies a new view on the timing of taxonomic, ecological and geographical diversification of the genus. Even considering that this interpretation is affected by biases inherent to the fossil record, the phylogenetic delimitation of the crown clade as restricted to species recorded since the Middle Pleistocene seems to configure a pattern underlain by a fast and late cladogenesis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CTENOMYIDAE
dc.subject
SOUTH AMERICA
dc.subject
PLEISTOCENE
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PHYLOGENY
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TIMETREE
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
A new Pleistocene Ctenomys and divergence dating of the hyperdiverse South American rodent family Ctenomyidae
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-13T19:22:46Z
dc.journal.volume
19
dc.journal.pagination
377-392
dc.journal.pais
Reino Unido
dc.journal.ciudad
Cambridge
dc.description.fil
Fil: de Santi, Nahuel Antu. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección de Mastozoología; Argentina
dc.description.fil
Fil: Verzi, Diego Hector. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección de Mastozoología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Olivares, Adriana Itati. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección de Mastozoología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Piñero García, Pedro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección de Mastozoología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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
dc.description.fil
Fil: Morgan, Cecilia Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección de Mastozoología; Argentina
dc.journal.title
Journal of Systematic Palaeontology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/14772019.2021.1910583
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/14772019.2021.1910583
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