Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia

Autores
Cerda, Ignacio Alejandro; Garcia Araoz, Rodolfo; Powell, Jaime Eduardo; Lopez, Oscar
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Titanosaurs are the only group of sauropodomorph dinosaurs that possesses osteoderms. The Anacleto and Allen formations (Upper Cretaceous) from northern Patagonia (Argentina) have provided an abundance of these elements, isolated or associated with more or less complete skeletons. Here, we study the morphology, microanatomy, and histology of titanosaur osteoderms found in these stratigraphic units. The size and gross anatomy of the osteoderms are strongly variable, as well as their microanatomy, which ranges from compact structures to those with strong development of cancellous bone. The primary bone tissue is composed of structural fiber bundles that are ossified by dermal metaplasia. Bone pathologies were identified in at least two osteoderms. Bone histology suggests that the osteoderms were entirely imbedded in the stratum compactum of the dermis. Titanosaur osteoderms were probably employed for multiple functions, including mineral storage and defense.
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; Argentina
Fil: Garcia Araoz, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; Argentina
Fil: Powell, Jaime Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tucumán; Argentina
Fil: Lopez, Oscar. Medicos Asociados de Tucuman; Argentina
Materia
Histology
Osteoderms
Titanosaurs
Patagonia
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:11336/39542
Acceder
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spelling Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of PatagoniaCerda, Ignacio AlejandroGarcia Araoz, RodolfoPowell, Jaime EduardoLopez, OscarHistologyOsteodermsTitanosaursPatagoniahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Titanosaurs are the only group of sauropodomorph dinosaurs that possesses osteoderms. The Anacleto and Allen formations (Upper Cretaceous) from northern Patagonia (Argentina) have provided an abundance of these elements, isolated or associated with more or less complete skeletons. Here, we study the morphology, microanatomy, and histology of titanosaur osteoderms found in these stratigraphic units. The size and gross anatomy of the osteoderms are strongly variable, as well as their microanatomy, which ranges from compact structures to those with strong development of cancellous bone. The primary bone tissue is composed of structural fiber bundles that are ossified by dermal metaplasia. Bone pathologies were identified in at least two osteoderms. Bone histology suggests that the osteoderms were entirely imbedded in the stratum compactum of the dermis. Titanosaur osteoderms were probably employed for multiple functions, including mineral storage and defense.Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; ArgentinaFil: Garcia Araoz, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; ArgentinaFil: Powell, Jaime Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tucumán; ArgentinaFil: Lopez, Oscar. Medicos Asociados de Tucuman; ArgentinaSociety of Vertebrate Paleontology2015-01-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39542Cerda, Ignacio Alejandro; Garcia Araoz, Rodolfo; Powell, Jaime Eduardo; Lopez, Oscar; Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 35; 1; 2-1-2015; 1-220272-4634CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2014.905791info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/02724634.2014.905791info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:59Zoai:ri.conicet.gov.ar:11336/39542instacron: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:34982025-09-03 09:47:59.714CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
title Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
spellingShingle Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
Cerda, Ignacio Alejandro
Histology
Osteoderms
Titanosaurs
Patagonia
title_short Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
title_full Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
title_fullStr Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
title_full_unstemmed Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
title_sort Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
dc.creator.none.fl_str_mv Cerda, Ignacio Alejandro
Garcia Araoz, Rodolfo
Powell, Jaime Eduardo
Lopez, Oscar
author Cerda, Ignacio Alejandro
author_facet Cerda, Ignacio Alejandro
Garcia Araoz, Rodolfo
Powell, Jaime Eduardo
Lopez, Oscar
author_role author
author2 Garcia Araoz, Rodolfo
Powell, Jaime Eduardo
Lopez, Oscar
author2_role author
author
author
dc.subject.none.fl_str_mv Histology
Osteoderms
Titanosaurs
Patagonia
topic Histology
Osteoderms
Titanosaurs
Patagonia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Titanosaurs are the only group of sauropodomorph dinosaurs that possesses osteoderms. The Anacleto and Allen formations (Upper Cretaceous) from northern Patagonia (Argentina) have provided an abundance of these elements, isolated or associated with more or less complete skeletons. Here, we study the morphology, microanatomy, and histology of titanosaur osteoderms found in these stratigraphic units. The size and gross anatomy of the osteoderms are strongly variable, as well as their microanatomy, which ranges from compact structures to those with strong development of cancellous bone. The primary bone tissue is composed of structural fiber bundles that are ossified by dermal metaplasia. Bone pathologies were identified in at least two osteoderms. Bone histology suggests that the osteoderms were entirely imbedded in the stratum compactum of the dermis. Titanosaur osteoderms were probably employed for multiple functions, including mineral storage and defense.
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; Argentina
Fil: Garcia Araoz, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología.; Argentina
Fil: Powell, Jaime Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tucumán; Argentina
Fil: Lopez, Oscar. Medicos Asociados de Tucuman; Argentina
description Titanosaurs are the only group of sauropodomorph dinosaurs that possesses osteoderms. The Anacleto and Allen formations (Upper Cretaceous) from northern Patagonia (Argentina) have provided an abundance of these elements, isolated or associated with more or less complete skeletons. Here, we study the morphology, microanatomy, and histology of titanosaur osteoderms found in these stratigraphic units. The size and gross anatomy of the osteoderms are strongly variable, as well as their microanatomy, which ranges from compact structures to those with strong development of cancellous bone. The primary bone tissue is composed of structural fiber bundles that are ossified by dermal metaplasia. Bone pathologies were identified in at least two osteoderms. Bone histology suggests that the osteoderms were entirely imbedded in the stratum compactum of the dermis. Titanosaur osteoderms were probably employed for multiple functions, including mineral storage and defense.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-02
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/11336/39542
Cerda, Ignacio Alejandro; Garcia Araoz, Rodolfo; Powell, Jaime Eduardo; Lopez, Oscar; Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 35; 1; 2-1-2015; 1-22
0272-4634
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39542
identifier_str_mv Cerda, Ignacio Alejandro; Garcia Araoz, Rodolfo; Powell, Jaime Eduardo; Lopez, Oscar; Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 35; 1; 2-1-2015; 1-22
0272-4634
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2014.905791
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/02724634.2014.905791
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 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_ 1842268895618007040
score 13.13397

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