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dc.contributor.author
O'gorman, Jose Patricio
dc.contributor.author
Brandoni, Zulma Nelida
dc.contributor.author
Salgado, Leonardo
dc.date.available
2017-01-11T21:59:44Z
dc.date.issued
2013-02
dc.identifier.citation
O'gorman, Jose Patricio; Brandoni, Zulma Nelida; Salgado, Leonardo; Postcranial morphology of Aristonectes Cabrera (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of Patagonia and Antartica; Cambridge University Press; Antarctic Science; 25; 1; 2-2013; 1-12
dc.identifier.issn
0954-1020
dc.identifier.uri
http://hdl.handle.net/11336/11188
dc.description.abstract
A partial, postcranial skeleton of a juvenile individual referred to Aristonectes cf. parvidens from the upper Maastrichtian Lo´pez de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica, is described. Additionally, two juvenile specimens, also referred to A. cf. parvidens from the Allen Formation (upper Campanian–lower Maastrichtian) and Jagu¨el Formation (upper Maastrichtian) (Rı´o Negro province, Argentina), are redescribed. The analysis of the systematic value of the cervical centrum proportions of juvenile specimens of Elasmosauridae suggests that these elements can be used to differentiate juvenile specimens of A. cf. parvidens from juveniles of other Elasmosauridae. On this basis, the specimens described are referred to A. cf. parvidens. Based on the proportion of the cervical centra, the first South American plesiosaur described by Gay in 1848 is here referred to A. cf. parvidens. The coracoid of Aristonectes is described for the first time showing a cordiform fenestra, a feature only recorded in the Elasmosauridae among the Plesiosauria, therefore, these new data support the inclusion of Aristonectes within the Elasmosauridae. With the new material described in this paper, Aristonectes is one of the most frecuently recorded genera of Late Cretaceous plesiosaurs in the Southern Hemisphere.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Antarctic Peninsula
dc.subject
López de Bertodano Formation
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Maastrichtian
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Plesiosaurus Chilensis
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Sauropterygia
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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
Postcranial morphology of Aristonectes Cabrera (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of Patagonia and Antartica
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-11T13:26:03Z
dc.identifier.eissn
1365-2079
dc.journal.volume
25
dc.journal.number
1
dc.journal.pagination
1-12
dc.journal.pais
Reino Unido
dc.journal.ciudad
Cambridge
dc.description.fil
Fil: O'gorman, Jose Patricio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
dc.description.fil
Fil: Brandoni, Zulma Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
dc.description.fil
Fil: Salgado, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina
dc.journal.title
Antarctic Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.cambridge.org/abstract_S0954102012000673
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S0954102012000673
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