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dc.contributor.author
Pereda Suberbiola, Xabier
dc.contributor.author
Galton, Peter M.
dc.contributor.author
Mallison, Heinrich
dc.contributor.author
Novas, Fernando Emilio
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dc.date.available
2019-01-09T22:43:50Z
dc.date.issued
2013-03
dc.identifier.citation
Pereda Suberbiola, Xabier; Galton, Peter M.; Mallison, Heinrich; Novas, Fernando Emilio; A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation; Taylor & Francis; Alcheringa; 37; 1; 3-2013; 65-78
dc.identifier.issn
0311-5518
dc.identifier.uri
http://hdl.handle.net/11336/67876
dc.description.abstract
A re-evaluation of several vertebrae and dermal plates from the Lower Cretaceous (La Amarga Formation, Puesto Antigual Member; Barremian-lower Aptian) of Neuquén in Argentina, originally described as a stegosaurian dinosaur and recently referred to an indeterminate ornithischian, confirms the former identification. The Neuquén remains have a combination of features that is only known among stegosaurs: cervical vertebrae with a proportionally large cross-section of the neural canal, the anterior height and width of which are half the height of the anterior centrum, as in the cervical vertebrae of Kentrosaurus, Dacentrurus and Stegosaurus; prominent lateral depressions on the cervical centra, as in the presacral vertebrae of Dacentrurus; and cervical dermal plates that are subtriangular, longer than high and reminiscent of those of Miragaia. Moreover, a small bone here interpreted to be an anterior supraorbital (= first palpebral) is similar to that of Stegosaurus and other stegosaurs in having an elongate form and a dorsal rugose surface. The remains from Argentina exhibit some differences relative to other stegosaurs, suggesting that it is potentially a distinct taxon, but their incompleteness advises against the erection of a new genus and species. Interestingly, it is the only known skeletal record of Stegosauria in South America. It provides the second conclusive evidence of the presence of this clade in the Early Cretaceous of the Gondwanan landmasses.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Argentina
dc.subject
Biogeography
dc.subject
Dermal Plates
dc.subject
Gondwana
dc.subject
La Amarga Formation
dc.subject
Lower Cretaceous
dc.subject
NeuquÉN
dc.subject
Stegosauria
dc.subject
Vertebrae
dc.subject.classification
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-09T17:47:48Z
dc.journal.volume
37
dc.journal.number
1
dc.journal.pagination
65-78
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco; España
dc.description.fil
Fil: Galton, Peter M.. University of Yale; Estados Unidos. University of Bridgeport; Estados Unidos
dc.description.fil
Fil: Mallison, Heinrich. Universität zu Berlin; Alemania
dc.description.fil
Fil: Novas, Fernando Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
dc.journal.title
Alcheringa
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/03115518.2012.702531
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115518.2012.702531
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