The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)

Autores
Martini, Gastón Andrés; Degrange, Federico Javier; Gonzalez Ruiz, Laureano Raul
Año de publicación
2022
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
According to our revision, the only middle ear bone described for glyptodonts is the stapes of Glyptodon Owen, Panochthus Burmeister and "Sclerocalyptus" Ameghino briefly described and illustrated by Guth C. in 1957. The aim of this study is to describe the stapes of the glyptodont Propalaehoplophorus Ameghino (YPM PU 15007), from the early Miocene Santa Cruz Formation of Patagonia (Argentina). We observed the middle ear structures using micro-computed tomography, and subsequent three-dimensional reconstructions, made using Avizo 7.1. The description is based on the right stapes, the only one preserved. The stapes appears anatomically rotated, with the head distally and the plate medially. It is typically bicrurate. The oval head is robust, with a well-developed muscular process, and tapers to form a long, flat neck region. Between neck and footplate, the stapedial crura diverge to surround a sizeable intercrural foramen. Both stapedial crura are constituted by thick bone, thinner than the head and footplate. The anterior crus is slimmer at its middle region than the posterior one, but it seems to be an artifact due to preservation. Both crura are long, almost equally wide all along and inserted near the border of the footplate, delimiting a triangular intercrural foramen. The footplate is oval and relatively thick, thinner posteriorly. Glyptodon stapes has an elongated shape, an oval intercrural foramen, and a reduced footplate, meanwhile in Propalaehoplophorus are both the stapes and the intracrural foramen triangular in shape, and an evident footplate. Panochthus and "Sclerocalyptus" present a not-perforated stapedes, with their crura joined along their entire length. Some similarities between stapedes of Propalaehoplophorus and extant armadillos includes a similar overall triangular shape with the narrow oval head forming a long and flat distinguishable neck, and the stapedial crura diverging to delimit a sizeable foramen. This preliminary finding, provide a basis for future anatomical and functional studies on auditory abilities in the santacrucian glyptodonts, which will allow to stablish patterns of hearing evolution across the Cingulata.
Fil: Martini, Gastón Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Degrange, Federico Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
XXXV Jornadas Argentinas de Paleontología de Vertebrados
Trelew
Argentina
Asociación Paleontológica Argentina
Materia
STAPES
GLYPTODONTS
ANATOMY
FORMACION SANTA CRUZ
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/229094
Acceder
id CONICETDig_b064271245f2149510b36fef8892b7f8
oai_identifier_str oai:ri.conicet.gov.ar:11336/229094
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)Martini, Gastón AndrésDegrange, Federico JavierGonzalez Ruiz, Laureano RaulSTAPESGLYPTODONTSANATOMYFORMACION SANTA CRUZhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1According to our revision, the only middle ear bone described for glyptodonts is the stapes of Glyptodon Owen, Panochthus Burmeister and "Sclerocalyptus" Ameghino briefly described and illustrated by Guth C. in 1957. The aim of this study is to describe the stapes of the glyptodont Propalaehoplophorus Ameghino (YPM PU 15007), from the early Miocene Santa Cruz Formation of Patagonia (Argentina). We observed the middle ear structures using micro-computed tomography, and subsequent three-dimensional reconstructions, made using Avizo 7.1. The description is based on the right stapes, the only one preserved. The stapes appears anatomically rotated, with the head distally and the plate medially. It is typically bicrurate. The oval head is robust, with a well-developed muscular process, and tapers to form a long, flat neck region. Between neck and footplate, the stapedial crura diverge to surround a sizeable intercrural foramen. Both stapedial crura are constituted by thick bone, thinner than the head and footplate. The anterior crus is slimmer at its middle region than the posterior one, but it seems to be an artifact due to preservation. Both crura are long, almost equally wide all along and inserted near the border of the footplate, delimiting a triangular intercrural foramen. The footplate is oval and relatively thick, thinner posteriorly. Glyptodon stapes has an elongated shape, an oval intercrural foramen, and a reduced footplate, meanwhile in Propalaehoplophorus are both the stapes and the intracrural foramen triangular in shape, and an evident footplate. Panochthus and "Sclerocalyptus" present a not-perforated stapedes, with their crura joined along their entire length. Some similarities between stapedes of Propalaehoplophorus and extant armadillos includes a similar overall triangular shape with the narrow oval head forming a long and flat distinguishable neck, and the stapedial crura diverging to delimit a sizeable foramen. This preliminary finding, provide a basis for future anatomical and functional studies on auditory abilities in the santacrucian glyptodonts, which will allow to stablish patterns of hearing evolution across the Cingulata.Fil: Martini, Gastón Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Degrange, Federico Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaXXXV Jornadas Argentinas de Paleontología de VertebradosTrelewArgentinaAsociación Paleontológica ArgentinaAsociación Paleontológica Argentina2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectJornadaJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/229094The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae); XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 42-422469-0228CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/439/info:eu-repo/semantics/altIdentifier/doi/doi: 10.5710/PEAPA.14.10.2022.439Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:58:33Zoai:ri.conicet.gov.ar:11336/229094instacron: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 11:58:33.345CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
title The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
spellingShingle The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
Martini, Gastón Andrés
STAPES
GLYPTODONTS
ANATOMY
FORMACION SANTA CRUZ
title_short The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
title_full The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
title_fullStr The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
title_full_unstemmed The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
title_sort The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae)
dc.creator.none.fl_str_mv Martini, Gastón Andrés
Degrange, Federico Javier
Gonzalez Ruiz, Laureano Raul
author Martini, Gastón Andrés
author_facet Martini, Gastón Andrés
Degrange, Federico Javier
Gonzalez Ruiz, Laureano Raul
author_role author
author2 Degrange, Federico Javier
Gonzalez Ruiz, Laureano Raul
author2_role author
author
dc.subject.none.fl_str_mv STAPES
GLYPTODONTS
ANATOMY
FORMACION SANTA CRUZ
topic STAPES
GLYPTODONTS
ANATOMY
FORMACION SANTA CRUZ
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv According to our revision, the only middle ear bone described for glyptodonts is the stapes of Glyptodon Owen, Panochthus Burmeister and "Sclerocalyptus" Ameghino briefly described and illustrated by Guth C. in 1957. The aim of this study is to describe the stapes of the glyptodont Propalaehoplophorus Ameghino (YPM PU 15007), from the early Miocene Santa Cruz Formation of Patagonia (Argentina). We observed the middle ear structures using micro-computed tomography, and subsequent three-dimensional reconstructions, made using Avizo 7.1. The description is based on the right stapes, the only one preserved. The stapes appears anatomically rotated, with the head distally and the plate medially. It is typically bicrurate. The oval head is robust, with a well-developed muscular process, and tapers to form a long, flat neck region. Between neck and footplate, the stapedial crura diverge to surround a sizeable intercrural foramen. Both stapedial crura are constituted by thick bone, thinner than the head and footplate. The anterior crus is slimmer at its middle region than the posterior one, but it seems to be an artifact due to preservation. Both crura are long, almost equally wide all along and inserted near the border of the footplate, delimiting a triangular intercrural foramen. The footplate is oval and relatively thick, thinner posteriorly. Glyptodon stapes has an elongated shape, an oval intercrural foramen, and a reduced footplate, meanwhile in Propalaehoplophorus are both the stapes and the intracrural foramen triangular in shape, and an evident footplate. Panochthus and "Sclerocalyptus" present a not-perforated stapedes, with their crura joined along their entire length. Some similarities between stapedes of Propalaehoplophorus and extant armadillos includes a similar overall triangular shape with the narrow oval head forming a long and flat distinguishable neck, and the stapedial crura diverging to delimit a sizeable foramen. This preliminary finding, provide a basis for future anatomical and functional studies on auditory abilities in the santacrucian glyptodonts, which will allow to stablish patterns of hearing evolution across the Cingulata.
Fil: Martini, Gastón Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Degrange, Federico Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
XXXV Jornadas Argentinas de Paleontología de Vertebrados
Trelew
Argentina
Asociación Paleontológica Argentina
description According to our revision, the only middle ear bone described for glyptodonts is the stapes of Glyptodon Owen, Panochthus Burmeister and "Sclerocalyptus" Ameghino briefly described and illustrated by Guth C. in 1957. The aim of this study is to describe the stapes of the glyptodont Propalaehoplophorus Ameghino (YPM PU 15007), from the early Miocene Santa Cruz Formation of Patagonia (Argentina). We observed the middle ear structures using micro-computed tomography, and subsequent three-dimensional reconstructions, made using Avizo 7.1. The description is based on the right stapes, the only one preserved. The stapes appears anatomically rotated, with the head distally and the plate medially. It is typically bicrurate. The oval head is robust, with a well-developed muscular process, and tapers to form a long, flat neck region. Between neck and footplate, the stapedial crura diverge to surround a sizeable intercrural foramen. Both stapedial crura are constituted by thick bone, thinner than the head and footplate. The anterior crus is slimmer at its middle region than the posterior one, but it seems to be an artifact due to preservation. Both crura are long, almost equally wide all along and inserted near the border of the footplate, delimiting a triangular intercrural foramen. The footplate is oval and relatively thick, thinner posteriorly. Glyptodon stapes has an elongated shape, an oval intercrural foramen, and a reduced footplate, meanwhile in Propalaehoplophorus are both the stapes and the intracrural foramen triangular in shape, and an evident footplate. Panochthus and "Sclerocalyptus" present a not-perforated stapedes, with their crura joined along their entire length. Some similarities between stapedes of Propalaehoplophorus and extant armadillos includes a similar overall triangular shape with the narrow oval head forming a long and flat distinguishable neck, and the stapedial crura diverging to delimit a sizeable foramen. This preliminary finding, provide a basis for future anatomical and functional studies on auditory abilities in the santacrucian glyptodonts, which will allow to stablish patterns of hearing evolution across the Cingulata.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Jornada
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/229094
The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae); XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 42-42
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/229094
identifier_str_mv The stapes of Propalaehoplophorus Ameghino (Xenarthra, Cingulata, Glyptodontidae); XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 42-42
2469-0228
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/439/
info:eu-repo/semantics/altIdentifier/doi/doi: 10.5710/PEAPA.14.10.2022.439
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
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_ 1846782300383084544
score 12.982451

Publicaciones similares