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dc.contributor.author
Forasiepi, Analia Marta
dc.contributor.author
Sánchez Villagra, Marcelo R.
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Schmelzle, Thomas
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Ladeveze, Sandrine
dc.contributor.author
Kay, Richard F.
dc.date.available
2018-01-02T21:56:42Z
dc.date.issued
2014-05
dc.identifier.citation
Forasiepi, Analia Marta; Sánchez Villagra, Marcelo R.; Schmelzle, Thomas; Ladeveze, Sandrine; Kay, Richard F.; An exceptionally well-preserved skeleton of Palaeothentes from the Early Miocene of Patagonia, Argentina: new insights into the anatomy of extinct paucituberculatan marsupials; Springer; Swiss Journal of Palaeontology; 133; 1; 5-2014; 1-21
dc.identifier.issn
1664-2376
dc.identifier.uri
http://hdl.handle.net/11336/32080
dc.description.abstract
During the Cenozoic paucituberculatans were much more diverse taxonomically and ecomorphologically than the three extant genera of shrew-like marsupials. Among paucituberculatans, palaeothentids were abundant during the Early Miocene, although most of the fossil remains consist of isolated teeth or fragmentary jaws. We describe a new and exceptional partial skeleton of Palaeothentes lemoinei (Palaeothentidae), collected from the Santa Cruz Formation (Santacrucian age, Early Miocene) in Patagonia. Whereas the skull of P. lemoinei has more plesiomorphic traits in the face, palate, and cranial vault than that of living paucituberculatans, the dental morphology is more derived. The osseous inner ear was examined using micro-CT scanning, revealing a cochlea with 1.9 turns, the presence of a “second crus commune”, an anterior semicircular canal (SC) projecting slightly dorsally from the dorsal-most point of the posterior SC, and lateral and posterior SCs projecting laterally to the same level. On the basis of postcranial anatomy, previous studies have demonstrated that P. lemoinei was an agile cursorial form, an inference supported by study of the new postcranial elements.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Marsupialia
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Cenozoic
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Skull
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Inner Ear
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
An exceptionally well-preserved skeleton of Palaeothentes from the Early Miocene of Patagonia, Argentina: new insights into the anatomy of extinct paucituberculatan marsupials
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-29T14:09:30Z
dc.identifier.eissn
1664-2384
dc.journal.volume
133
dc.journal.number
1
dc.journal.pagination
1-21
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Forasiepi, Analia Marta. Universitat Zurich; Suiza. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Sánchez Villagra, Marcelo R.. Universitat Zurich; Suiza
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Fil: Schmelzle, Thomas. Bad Wimpfen; Alemania
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Fil: Ladeveze, Sandrine. Museum National d'Histoire Naturelle; Francia. Centre National de la Recherche Scientifique; Francia. Universite Pierre et Marie Curie; Francia
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Fil: Kay, Richard F.. University of Duke; Estados Unidos
dc.journal.title
Swiss Journal of Palaeontology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s13358-014-0063-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s13358-014-0063-9
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