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dc.contributor.author
Gonzalez Ruiz, Laureano Raul
dc.contributor.author
Ciancio, Martin Ricardo
dc.contributor.author
Martin, Gabriel Mario
dc.contributor.author
Zurita, Alfredo Eduardo
dc.date.available
2017-06-19T20:31:46Z
dc.date.issued
2015-06-23
dc.identifier.citation
Gonzalez Ruiz, Laureano Raul; Ciancio, Martin Ricardo; Martin, Gabriel Mario; Zurita, Alfredo Eduardo; First record of supernumerary teeth in Glyptodontidae (Mammalia, Xenarthra, Cingulata); Taylor & Francis; Journal of Vertebrate Paleontology; 35; 1; 23-6-2015; 1-6; e885033
dc.identifier.issn
0272-4634
dc.identifier.uri
http://hdl.handle.net/11336/18482
dc.description.abstract
The presence of extra teeth has been reported for nearly all orders of recent mammals but are rarely recorded for fossil mammals. In this contribution we describe the first case of a supernumerary teeth for a Glyptodontidae (Mammalia, Xenarthra) and discuss possible explanations for this phenomenon. The specimen under study corresponds to an almost complete skull of an adult of Boreostemma acostae from the middle Miocene of La Venta (Colombia). Glyptodonts have eight trilobed and triprismatic molariform teeth in each maxilla and dentary (Mf 8/mf 8), but this specimen has nine molariform teeth on the left maxillary series. The sMf is placed between Mf1 and Mf2, with its major axis transversely oriented on the longitudinal axis of the tooth series. Morphologically, this tooth has a very slightly marked lobation, with no labial central lobe, and with two small labial lobes. The supernumerary tooth is within the serial size and form of the dental series. The presence of this supernumerary molariform might be explained by a mutation producing new tooth germen or by a division of an existing tooth germen. Finally, the presence of this supernumerary molariform between the Mf1 and Mf2 appears not to have affected the survival of this specimen, given the adult age of the studied specimen.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Supernumerary
dc.subject
Teeth
dc.subject
Glyptodontidae
dc.subject.classification
Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
First record of supernumerary teeth in Glyptodontidae (Mammalia, Xenarthra, Cingulata)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-23T19:41:07Z
dc.journal.volume
35
dc.journal.number
1
dc.journal.pagination
1-6; e885033
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Lawrence
dc.description.fil
Fil: Gonzalez Ruiz, Laureano Raul. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Ciancio, Martin Ricardo. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Martin, Gabriel Mario. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
dc.journal.title
Journal of Vertebrate Paleontology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/02724634.2014.885033


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