The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi

Autores
Paulina Carabajal, Ariana; Succar, Cecilia Andrea
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans. The forebrain, midbrain, and hindbrain resemble the morphology described for the abelisaurids Majungasaurus and Indosaurus. However, Aucasaurus exhibits a floccular process that is relatively larger than that of Majungasaurus. In Aucasaurus the flocculus is enclosed in an 8-shaped floccular recess, similar in shape and size to that observed in Abelisaurus, suggesting that the two Patagonian taxa were capable of a slightly wider range of movements of the head. Here we describe the second inner ear known for the Abelisauridae. The labyrinth of the inner ear is similar in shape and size to the semicircular canals of Majungasaurus, although the lateral semicircular canal is shorter in Aucasaurus.
Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; Argentina
Fil: Succar, Cecilia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; Argentina
Materia
NEUROANATOMY
PALEONEROLOGY
ARGENTINA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/43994
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoiPaulina Carabajal, ArianaSuccar, Cecilia AndreaNEUROANATOMYPALEONEROLOGYARGENTINAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans. The forebrain, midbrain, and hindbrain resemble the morphology described for the abelisaurids Majungasaurus and Indosaurus. However, Aucasaurus exhibits a floccular process that is relatively larger than that of Majungasaurus. In Aucasaurus the flocculus is enclosed in an 8-shaped floccular recess, similar in shape and size to that observed in Abelisaurus, suggesting that the two Patagonian taxa were capable of a slightly wider range of movements of the head. Here we describe the second inner ear known for the Abelisauridae. The labyrinth of the inner ear is similar in shape and size to the semicircular canals of Majungasaurus, although the lateral semicircular canal is shorter in Aucasaurus.Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; ArgentinaFil: Succar, Cecilia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; ArgentinaPolish Academy of Sciences. Institute of Paleobiology2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43994Paulina Carabajal, Ariana; Succar, Cecilia Andrea; The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 60; 1; 3-2015; 141-1440567-79201732-2421CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4202/app.2013.0037info:eu-repo/semantics/altIdentifier/url/http://www.app.pan.pl/article/item/app20130037.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-06T12:22:33Zoai:ri.conicet.gov.ar:11336/43994instacron: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:34982026-02-06 12:22:33.466CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
title The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
spellingShingle The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
Paulina Carabajal, Ariana
NEUROANATOMY
PALEONEROLOGY
ARGENTINA
title_short The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
title_full The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
title_fullStr The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
title_full_unstemmed The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
title_sort The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi
dc.creator.none.fl_str_mv Paulina Carabajal, Ariana
Succar, Cecilia Andrea
author Paulina Carabajal, Ariana
author_facet Paulina Carabajal, Ariana
Succar, Cecilia Andrea
author_role author
author2 Succar, Cecilia Andrea
author2_role author
dc.subject.none.fl_str_mv NEUROANATOMY
PALEONEROLOGY
ARGENTINA
topic NEUROANATOMY
PALEONEROLOGY
ARGENTINA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans. The forebrain, midbrain, and hindbrain resemble the morphology described for the abelisaurids Majungasaurus and Indosaurus. However, Aucasaurus exhibits a floccular process that is relatively larger than that of Majungasaurus. In Aucasaurus the flocculus is enclosed in an 8-shaped floccular recess, similar in shape and size to that observed in Abelisaurus, suggesting that the two Patagonian taxa were capable of a slightly wider range of movements of the head. Here we describe the second inner ear known for the Abelisauridae. The labyrinth of the inner ear is similar in shape and size to the semicircular canals of Majungasaurus, although the lateral semicircular canal is shorter in Aucasaurus.
Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; Argentina
Fil: Succar, Cecilia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; Argentina
description A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans. The forebrain, midbrain, and hindbrain resemble the morphology described for the abelisaurids Majungasaurus and Indosaurus. However, Aucasaurus exhibits a floccular process that is relatively larger than that of Majungasaurus. In Aucasaurus the flocculus is enclosed in an 8-shaped floccular recess, similar in shape and size to that observed in Abelisaurus, suggesting that the two Patagonian taxa were capable of a slightly wider range of movements of the head. Here we describe the second inner ear known for the Abelisauridae. The labyrinth of the inner ear is similar in shape and size to the semicircular canals of Majungasaurus, although the lateral semicircular canal is shorter in Aucasaurus.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/43994
Paulina Carabajal, Ariana; Succar, Cecilia Andrea; The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 60; 1; 3-2015; 141-144
0567-7920
1732-2421
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43994
identifier_str_mv Paulina Carabajal, Ariana; Succar, Cecilia Andrea; The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 60; 1; 3-2015; 141-144
0567-7920
1732-2421
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4202/app.2013.0037
info:eu-repo/semantics/altIdentifier/url/http://www.app.pan.pl/article/item/app20130037.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Polish Academy of Sciences. Institute of Paleobiology
publisher.none.fl_str_mv Polish Academy of Sciences. Institute of Paleobiology
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 13.115731

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