An unusual theropod frontal from the Upper Cretaceous of north Patagonia

Autores
Paulina Carabajal, Ariana; Coria, Rodolfo Anibal
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report an isolated left frontal (MCF-PVPH 320) corresponding to a medium-sized theropod dinosaur from the Portezuelo Formation (Coniacian)of northern Patagonia. It shows a unique combination of traits that are not present in any other known Cretaceous theropod from South America. MCF-PVPH 320 is robust and anteroposteriorly short, with a flat and smooth dorsal surface largely excavated by the supratemporal fossa. Endocranially, the olfactory bulb impression is elongate, and the olfactory tract impression is markedly shortened anteroposteriorly. MCF-PVPH 320 differs greatly from the frontals of Late Cretaceous theropods, such as abelisaurids, megaraptorines and carcharodontosaurids. In contrast, character states including the thickness of the bone, V-shaped frontoparietal suture, reduced participation on the orbital margin and markedly short olfactory tract impression suggest the presence of an unknown mid-sized to large allosauroid for the Portezuelo Formation.
Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia del Neuquen. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina
Fil: Coria, Rodolfo Anibal. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Frontal
Skull Roof
Theropod
Conianian
Argentina
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:11336/17876
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling An unusual theropod frontal from the Upper Cretaceous of north PatagoniaPaulina Carabajal, ArianaCoria, Rodolfo AnibalFrontalSkull RoofTheropodConianianArgentinahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We report an isolated left frontal (MCF-PVPH 320) corresponding to a medium-sized theropod dinosaur from the Portezuelo Formation (Coniacian)of northern Patagonia. It shows a unique combination of traits that are not present in any other known Cretaceous theropod from South America. MCF-PVPH 320 is robust and anteroposteriorly short, with a flat and smooth dorsal surface largely excavated by the supratemporal fossa. Endocranially, the olfactory bulb impression is elongate, and the olfactory tract impression is markedly shortened anteroposteriorly. MCF-PVPH 320 differs greatly from the frontals of Late Cretaceous theropods, such as abelisaurids, megaraptorines and carcharodontosaurids. In contrast, character states including the thickness of the bone, V-shaped frontoparietal suture, reduced participation on the orbital margin and markedly short olfactory tract impression suggest the presence of an unknown mid-sized to large allosauroid for the Portezuelo Formation.Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia del Neuquen. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; ArgentinaFil: Coria, Rodolfo Anibal. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaTaylor & Francis Ltd2015-06-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17876Paulina Carabajal, Ariana; Coria, Rodolfo Anibal; An unusual theropod frontal from the Upper Cretaceous of north Patagonia; Taylor & Francis Ltd; Alcheringa: An Australasian Journal of Palaeontology; 39; 4; 4-6-2015; 514-5180311-55181752-0754enginfo:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2015.1042275info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/pdf/10.1080/03115518.2015.1042275info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:33:09Zoai:ri.conicet.gov.ar:11336/17876instacron: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:34982025-10-15 15:33:10.158CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An unusual theropod frontal from the Upper Cretaceous of north Patagonia
title An unusual theropod frontal from the Upper Cretaceous of north Patagonia
spellingShingle An unusual theropod frontal from the Upper Cretaceous of north Patagonia
Paulina Carabajal, Ariana
Frontal
Skull Roof
Theropod
Conianian
Argentina
title_short An unusual theropod frontal from the Upper Cretaceous of north Patagonia
title_full An unusual theropod frontal from the Upper Cretaceous of north Patagonia
title_fullStr An unusual theropod frontal from the Upper Cretaceous of north Patagonia
title_full_unstemmed An unusual theropod frontal from the Upper Cretaceous of north Patagonia
title_sort An unusual theropod frontal from the Upper Cretaceous of north Patagonia
dc.creator.none.fl_str_mv Paulina Carabajal, Ariana
Coria, Rodolfo Anibal
author Paulina Carabajal, Ariana
author_facet Paulina Carabajal, Ariana
Coria, Rodolfo Anibal
author_role author
author2 Coria, Rodolfo Anibal
author2_role author
dc.subject.none.fl_str_mv Frontal
Skull Roof
Theropod
Conianian
Argentina
topic Frontal
Skull Roof
Theropod
Conianian
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report an isolated left frontal (MCF-PVPH 320) corresponding to a medium-sized theropod dinosaur from the Portezuelo Formation (Coniacian)of northern Patagonia. It shows a unique combination of traits that are not present in any other known Cretaceous theropod from South America. MCF-PVPH 320 is robust and anteroposteriorly short, with a flat and smooth dorsal surface largely excavated by the supratemporal fossa. Endocranially, the olfactory bulb impression is elongate, and the olfactory tract impression is markedly shortened anteroposteriorly. MCF-PVPH 320 differs greatly from the frontals of Late Cretaceous theropods, such as abelisaurids, megaraptorines and carcharodontosaurids. In contrast, character states including the thickness of the bone, V-shaped frontoparietal suture, reduced participation on the orbital margin and markedly short olfactory tract impression suggest the presence of an unknown mid-sized to large allosauroid for the Portezuelo Formation.
Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia del Neuquen. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina
Fil: Coria, Rodolfo Anibal. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We report an isolated left frontal (MCF-PVPH 320) corresponding to a medium-sized theropod dinosaur from the Portezuelo Formation (Coniacian)of northern Patagonia. It shows a unique combination of traits that are not present in any other known Cretaceous theropod from South America. MCF-PVPH 320 is robust and anteroposteriorly short, with a flat and smooth dorsal surface largely excavated by the supratemporal fossa. Endocranially, the olfactory bulb impression is elongate, and the olfactory tract impression is markedly shortened anteroposteriorly. MCF-PVPH 320 differs greatly from the frontals of Late Cretaceous theropods, such as abelisaurids, megaraptorines and carcharodontosaurids. In contrast, character states including the thickness of the bone, V-shaped frontoparietal suture, reduced participation on the orbital margin and markedly short olfactory tract impression suggest the presence of an unknown mid-sized to large allosauroid for the Portezuelo Formation.
publishDate 2015
dc.date.none.fl_str_mv 2015-06-04
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/11336/17876
Paulina Carabajal, Ariana; Coria, Rodolfo Anibal; An unusual theropod frontal from the Upper Cretaceous of north Patagonia; Taylor & Francis Ltd; Alcheringa: An Australasian Journal of Palaeontology; 39; 4; 4-6-2015; 514-518
0311-5518
1752-0754
url http://hdl.handle.net/11336/17876
identifier_str_mv Paulina Carabajal, Ariana; Coria, Rodolfo Anibal; An unusual theropod frontal from the Upper Cretaceous of north Patagonia; Taylor & Francis Ltd; Alcheringa: An Australasian Journal of Palaeontology; 39; 4; 4-6-2015; 514-518
0311-5518
1752-0754
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2015.1042275
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/pdf/10.1080/03115518.2015.1042275
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 Ltd
publisher.none.fl_str_mv Taylor & Francis Ltd
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
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score 13.22299

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