A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation

Autores
Pereda Suberbiola, Xabier; Galton, Peter M.; Mallison, Heinrich; Novas, Fernando Emilio
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco; España
Fil: Galton, Peter M.. University of Yale; Estados Unidos. University of Bridgeport; Estados Unidos
Fil: Mallison, Heinrich. Universität zu Berlin; Alemania
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
Materia
Argentina
Biogeography
Dermal Plates
Gondwana
La Amarga Formation
Lower Cretaceous
NeuquÉN
Stegosauria
Vertebrae
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67876
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/67876
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluationPereda Suberbiola, XabierGalton, Peter M.Mallison, HeinrichNovas, Fernando EmilioArgentinaBiogeographyDermal PlatesGondwanaLa Amarga FormationLower CretaceousNeuquÉNStegosauriaVertebraehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A 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.Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco; EspañaFil: Galton, Peter M.. University of Yale; Estados Unidos. University of Bridgeport; Estados UnidosFil: Mallison, Heinrich. Universität zu Berlin; AlemaniaFil: Novas, Fernando Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaTaylor & Francis2013-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67876Pereda 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; 65-780311-5518CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2012.702531info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115518.2012.702531info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T11:45:43Zoai:ri.conicet.gov.ar:11336/67876instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-29 11:45:43.572CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
title A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
spellingShingle A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
Pereda Suberbiola, Xabier
Argentina
Biogeography
Dermal Plates
Gondwana
La Amarga Formation
Lower Cretaceous
NeuquÉN
Stegosauria
Vertebrae
title_short A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
title_full A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
title_fullStr A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
title_full_unstemmed A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
title_sort A plated dinosaur (Ornithischia, Stegosauria) from the Early Cretaceous of Argentina, South America: an evaluation
dc.creator.none.fl_str_mv Pereda Suberbiola, Xabier
Galton, Peter M.
Mallison, Heinrich
Novas, Fernando Emilio
author Pereda Suberbiola, Xabier
author_facet Pereda Suberbiola, Xabier
Galton, Peter M.
Mallison, Heinrich
Novas, Fernando Emilio
author_role author
author2 Galton, Peter M.
Mallison, Heinrich
Novas, Fernando Emilio
author2_role author
author
author
dc.subject.none.fl_str_mv Argentina
Biogeography
Dermal Plates
Gondwana
La Amarga Formation
Lower Cretaceous
NeuquÉN
Stegosauria
Vertebrae
topic Argentina
Biogeography
Dermal Plates
Gondwana
La Amarga Formation
Lower Cretaceous
NeuquÉN
Stegosauria
Vertebrae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco; España
Fil: Galton, Peter M.. University of Yale; Estados Unidos. University of Bridgeport; Estados Unidos
Fil: Mallison, Heinrich. Universität zu Berlin; Alemania
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
description 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.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/67876
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
0311-5518
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67876
identifier_str_mv 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
0311-5518
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2012.702531
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115518.2012.702531
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1847426431110348800
score 13.10058

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