dc.creatorArnal, Michelle
dc.creatorVucetich, María Guiomar
dc.date.accessioned2020-01-20T18:58:10Z
dc.date.accessioned2022-10-15T05:21:07Z
dc.date.available2020-01-20T18:58:10Z
dc.date.available2022-10-15T05:21:07Z
dc.date.created2020-01-20T18:58:10Z
dc.date.issued2011-07
dc.identifierArnal, Michelle; Vucetich, María Guiomar; First record of supernumerary teeth in South American fossil rodents; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 31; 4; 7-2011; 925-927
dc.identifier0272-4634
dc.identifierhttp://hdl.handle.net/11336/95252
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4349180
dc.description.abstractSupernumerary tooth are recorded for nearly all actual groups of mammals as well as many fossil groups. In modern rodents extra tooth have been studied in several families, nevertheless its fossil record is extremely scarce. In this work we report the first case of a fossil South American rodent with a supernumerary tooth. The studied specimen is a right mandible with broken m1-m3, an extra tooth and incisive of an adult individual of Sciamys principalis (Octodontoidea, Acaremyidae) from the early Miocene of Patagonia. Based on the occlusal morphology and implantation of this supernumerary tooth, and the general characters and size of the normal m1-m3, we inferred that the appearance of the extra tooth was consequence of genetic alterations. Nevertheless we do not reject other factor as causes of its occurrence.
dc.languageeng
dc.publisherSociety of Vertebrate Paleontology
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/02724634.2011.576732
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/02724634.2011.576732
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectRODENTS
dc.subjectOCTODONTOIDS
dc.subjectSUPERNUMERARY TEETH
dc.titleFirst record of supernumerary teeth in South American fossil rodents
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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