Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina

Autores
Dozo, Maria Teresa; Vucetich, María Guiomar; Candela, Adriana Magdalena
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A relatively complete skull of Hypsosteiromys with a well-preserved natural endocranial cast was recovered from the Colhuehuapi Member (lower Miocene, Sarmiento Formation) at Gran Barranca, Chubut Province, Argentina. This is the only known skull of this genus. It differs from the other erethizontids because it is all along very low, the ascending ramus of the premaxillae extends behind the posterior margins of the nasals, and the external auditive meatus has a ventral furrow. Comparison of the endocast with the brains of extant Erethizontidae demonstrates remarkable neuro-morphological homogeneity, despite differences in size. Erethizontid´s brains have rounded telencephalic hemispheres with prominent frontal lobes and small olfactory bulbs, and lack temporal lobes and neocortical sulci. Thus, the Gran Barranca skull shows that the external neuromorphology of the Erethizontidae has not changed substantially at least since the early Miocene.
Fil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Vucetich, María Guiomar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Candela, Adriana Magdalena. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Materia
SKULL ANATOMY
PALEONEUROLOGY
ERETHIZONTIDAE
MIOCENE
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:11336/103980
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from ArgentinaDozo, Maria TeresaVucetich, María GuiomarCandela, Adriana MagdalenaSKULL ANATOMYPALEONEUROLOGYERETHIZONTIDAEMIOCENEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A relatively complete skull of Hypsosteiromys with a well-preserved natural endocranial cast was recovered from the Colhuehuapi Member (lower Miocene, Sarmiento Formation) at Gran Barranca, Chubut Province, Argentina. This is the only known skull of this genus. It differs from the other erethizontids because it is all along very low, the ascending ramus of the premaxillae extends behind the posterior margins of the nasals, and the external auditive meatus has a ventral furrow. Comparison of the endocast with the brains of extant Erethizontidae demonstrates remarkable neuro-morphological homogeneity, despite differences in size. Erethizontid´s brains have rounded telencephalic hemispheres with prominent frontal lobes and small olfactory bulbs, and lack temporal lobes and neocortical sulci. Thus, the Gran Barranca skull shows that the external neuromorphology of the Erethizontidae has not changed substantially at least since the early Miocene.Fil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Vucetich, María Guiomar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Candela, Adriana Magdalena. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaSociety of Vertebrate Paleontology2004-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103980Dozo, Maria Teresa; Vucetich, María Guiomar; Candela, Adriana Magdalena; Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 24; 1; 3-2004; 228-2340272-46341937-2809CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1671/18.1info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1671/18.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:34:49Zoai:ri.conicet.gov.ar:11336/103980instacron: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:34982025-10-22 11:34:49.642CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
title Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
spellingShingle Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
Dozo, Maria Teresa
SKULL ANATOMY
PALEONEUROLOGY
ERETHIZONTIDAE
MIOCENE
title_short Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
title_full Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
title_fullStr Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
title_full_unstemmed Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
title_sort Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina
dc.creator.none.fl_str_mv Dozo, Maria Teresa
Vucetich, María Guiomar
Candela, Adriana Magdalena
author Dozo, Maria Teresa
author_facet Dozo, Maria Teresa
Vucetich, María Guiomar
Candela, Adriana Magdalena
author_role author
author2 Vucetich, María Guiomar
Candela, Adriana Magdalena
author2_role author
author
dc.subject.none.fl_str_mv SKULL ANATOMY
PALEONEUROLOGY
ERETHIZONTIDAE
MIOCENE
topic SKULL ANATOMY
PALEONEUROLOGY
ERETHIZONTIDAE
MIOCENE
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 relatively complete skull of Hypsosteiromys with a well-preserved natural endocranial cast was recovered from the Colhuehuapi Member (lower Miocene, Sarmiento Formation) at Gran Barranca, Chubut Province, Argentina. This is the only known skull of this genus. It differs from the other erethizontids because it is all along very low, the ascending ramus of the premaxillae extends behind the posterior margins of the nasals, and the external auditive meatus has a ventral furrow. Comparison of the endocast with the brains of extant Erethizontidae demonstrates remarkable neuro-morphological homogeneity, despite differences in size. Erethizontid´s brains have rounded telencephalic hemispheres with prominent frontal lobes and small olfactory bulbs, and lack temporal lobes and neocortical sulci. Thus, the Gran Barranca skull shows that the external neuromorphology of the Erethizontidae has not changed substantially at least since the early Miocene.
Fil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Vucetich, María Guiomar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Candela, Adriana Magdalena. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
description A relatively complete skull of Hypsosteiromys with a well-preserved natural endocranial cast was recovered from the Colhuehuapi Member (lower Miocene, Sarmiento Formation) at Gran Barranca, Chubut Province, Argentina. This is the only known skull of this genus. It differs from the other erethizontids because it is all along very low, the ascending ramus of the premaxillae extends behind the posterior margins of the nasals, and the external auditive meatus has a ventral furrow. Comparison of the endocast with the brains of extant Erethizontidae demonstrates remarkable neuro-morphological homogeneity, despite differences in size. Erethizontid´s brains have rounded telencephalic hemispheres with prominent frontal lobes and small olfactory bulbs, and lack temporal lobes and neocortical sulci. Thus, the Gran Barranca skull shows that the external neuromorphology of the Erethizontidae has not changed substantially at least since the early Miocene.
publishDate 2004
dc.date.none.fl_str_mv 2004-03
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/11336/103980
Dozo, Maria Teresa; Vucetich, María Guiomar; Candela, Adriana Magdalena; Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 24; 1; 3-2004; 228-234
0272-4634
1937-2809
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103980
identifier_str_mv Dozo, Maria Teresa; Vucetich, María Guiomar; Candela, Adriana Magdalena; Skull anatomy and neuromorphology of Hypsosteiromys , a Colhuehuapian erethizontid rodent from Argentina; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 24; 1; 3-2004; 228-234
0272-4634
1937-2809
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1671/18.1
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1671/18.1
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
application/pdf
dc.publisher.none.fl_str_mv Society of Vertebrate Paleontology
publisher.none.fl_str_mv Society of Vertebrate Paleontology
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_ 1846781977568477184
score 12.982451

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