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dc.contributor.author
Ortiz, Pablo Edmundo
dc.contributor.author
Jayat, Jorge Pablo
dc.date.available
2016-12-29T14:32:40Z
dc.date.issued
2012-11
dc.identifier.citation
Ortiz, Pablo Edmundo; Jayat, Jorge Pablo; The Quaternary record of Reithrodon auritus (Rodentia: Cricetidae) in northwestern Argentina and its paleoenvironmental meaning; De Gruyter; Mammalia; 76; 4; 11-2012; 455-460
dc.identifier.issn
0025-1461
dc.identifier.uri
http://hdl.handle.net/11336/10583
dc.description.abstract
Reithrodon auritus is a living sigmodontine with one of the broader temporal records, from the lower Pliocene of Argentina. Its populations in northwestern Argentina are today found patchily and restricted to five high-elevation and isolated localities in open areas of highland grasslands vegetation (at >3000 m). During the Pleistocene and early Holocene, R. auritus would have had a broader range, reaching lower altitudes everywhere and being one of the dominant small mammal species in some fossil localities. In this note, we summarize the known Pleistocene and early Holocene fossil record of R. auritus in northwestern Argentina, provide new paleontological sites for the species, and make comments concerning the paleoenvironmental implications of its presence at such lower altitudes. The paleontological evidence indicates that during the Pleistocene and early Holocene, R. auritus inhabited around 1000 m below their current altitudinal distribution in the eastern Andean ranges, with populations clearly more abundant than today. The fossils of R. auritus are indicative of colder and perhaps more xeric paleoenvironmental conditions, characterized by open areas with sparse grassy vegetation as those developed today around 3000 m elevation.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
De Gruyter
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Catamarca
dc.subject
Early Holocene
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Pleistocene
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Sigmodontinae
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Tucumán
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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
The Quaternary record of Reithrodon auritus (Rodentia: Cricetidae) in northwestern Argentina and its paleoenvironmental meaning
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-28T17:54:51Z
dc.identifier.eissn
1864-1547
dc.journal.volume
76
dc.journal.number
4
dc.journal.pagination
455-460
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: Ortiz, Pablo Edmundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto Superior de Correlación Geológica; Argentina
dc.description.fil
Fil: Jayat, Jorge Pablo. Universidad Nacional de Chilecito. Instituto de Ambientes de Montaña y Regiones Aridas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Mammalia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.degruyter.com/view/j/mamm.2012.76.issue-4/mammalia-2012-0059/mammalia-2012-0059.xml
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1515/mammalia-2012-0059
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