First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches

Autores
Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pseudosuchians were the dominant group of archosaurs on continental ecosystems during the Triassic. However, studies that report palaeopathologies based on osteohistological evidence in this group are scarce. Here, two cases of palaeopathologies found in appendicular bones of two clades of pseudosuchians are presented: Aetosauria, a distal fragment of the fibula of Aetosauroides scagliai and Erpetosuchidae, the distal half of the tibia of Tarjadia ruthae from the Ischigualasto and Chañares formations, respectively (province of La Rioja, Argentina). The cortex in both specimens is composed of woven-fibred bone in the deepest part and by parallel-fibred bone in the subperiosteum. Towards the outermost portion of the cortex, a thin layer of periosteal bone with an irregular margin is recorded, mainly formed by a fibrolamellar bone vascularized with relatively wide and anastomosed radial canals. These features are compatible with a specific tissue recognized in pathological conditions, the radial fibrolamellar bone (RFB), generated by periosteal reactive bone. Additionally, a thin layer of parallel-fibred/lamellar bone crossed this structure in A. scagliai and surrounding the outermost portion in both specimens. The presence of RFB shows an abnormally accelerated bony overgrowth. However, due to the short thickness of this layer and the subsequent formation of parallel-fibred bone, it indicates a slowdown in its development and a possible recovery of the pathological condition. The configuration of the injury is compatible with periostitis and it constitutes the first record of this type of pathologies in non-crocodylomorph pseudosuchians. As the causes for this benign injury, it is inferred a non-traumatic stress followed by a pyogenic infection.
Fil: Ponce, Denis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Materia
Aetosauria
Erpetosuchidae
Injury
Bone histology
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:11336/249317
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approachesPonce, Denis AlejandroCerda, Ignacio AlejandroDesojo, Julia BrendaAetosauriaErpetosuchidaeInjuryBone histologyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Pseudosuchians were the dominant group of archosaurs on continental ecosystems during the Triassic. However, studies that report palaeopathologies based on osteohistological evidence in this group are scarce. Here, two cases of palaeopathologies found in appendicular bones of two clades of pseudosuchians are presented: Aetosauria, a distal fragment of the fibula of Aetosauroides scagliai and Erpetosuchidae, the distal half of the tibia of Tarjadia ruthae from the Ischigualasto and Chañares formations, respectively (province of La Rioja, Argentina). The cortex in both specimens is composed of woven-fibred bone in the deepest part and by parallel-fibred bone in the subperiosteum. Towards the outermost portion of the cortex, a thin layer of periosteal bone with an irregular margin is recorded, mainly formed by a fibrolamellar bone vascularized with relatively wide and anastomosed radial canals. These features are compatible with a specific tissue recognized in pathological conditions, the radial fibrolamellar bone (RFB), generated by periosteal reactive bone. Additionally, a thin layer of parallel-fibred/lamellar bone crossed this structure in A. scagliai and surrounding the outermost portion in both specimens. The presence of RFB shows an abnormally accelerated bony overgrowth. However, due to the short thickness of this layer and the subsequent formation of parallel-fibred bone, it indicates a slowdown in its development and a possible recovery of the pathological condition. The configuration of the injury is compatible with periostitis and it constitutes the first record of this type of pathologies in non-crocodylomorph pseudosuchians. As the causes for this benign injury, it is inferred a non-traumatic stress followed by a pyogenic infection.Fil: Ponce, Denis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaPolish Academy of Sciences. Institute of Paleobiology2024-10info: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/11336/249317Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 69; 3; 10-2024; 395-4020567-79201732-2421CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.app.pan.pl/article/item/app011412024.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.4202/app.01141.2024info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:09Zoai:ri.conicet.gov.ar:11336/249317instacron: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:34982025-09-29 09:47:09.922CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
title First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
spellingShingle First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
Ponce, Denis Alejandro
Aetosauria
Erpetosuchidae
Injury
Bone histology
title_short First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
title_full First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
title_fullStr First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
title_full_unstemmed First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
title_sort First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches
dc.creator.none.fl_str_mv Ponce, Denis Alejandro
Cerda, Ignacio Alejandro
Desojo, Julia Brenda
author Ponce, Denis Alejandro
author_facet Ponce, Denis Alejandro
Cerda, Ignacio Alejandro
Desojo, Julia Brenda
author_role author
author2 Cerda, Ignacio Alejandro
Desojo, Julia Brenda
author2_role author
author
dc.subject.none.fl_str_mv Aetosauria
Erpetosuchidae
Injury
Bone histology
topic Aetosauria
Erpetosuchidae
Injury
Bone histology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pseudosuchians were the dominant group of archosaurs on continental ecosystems during the Triassic. However, studies that report palaeopathologies based on osteohistological evidence in this group are scarce. Here, two cases of palaeopathologies found in appendicular bones of two clades of pseudosuchians are presented: Aetosauria, a distal fragment of the fibula of Aetosauroides scagliai and Erpetosuchidae, the distal half of the tibia of Tarjadia ruthae from the Ischigualasto and Chañares formations, respectively (province of La Rioja, Argentina). The cortex in both specimens is composed of woven-fibred bone in the deepest part and by parallel-fibred bone in the subperiosteum. Towards the outermost portion of the cortex, a thin layer of periosteal bone with an irregular margin is recorded, mainly formed by a fibrolamellar bone vascularized with relatively wide and anastomosed radial canals. These features are compatible with a specific tissue recognized in pathological conditions, the radial fibrolamellar bone (RFB), generated by periosteal reactive bone. Additionally, a thin layer of parallel-fibred/lamellar bone crossed this structure in A. scagliai and surrounding the outermost portion in both specimens. The presence of RFB shows an abnormally accelerated bony overgrowth. However, due to the short thickness of this layer and the subsequent formation of parallel-fibred bone, it indicates a slowdown in its development and a possible recovery of the pathological condition. The configuration of the injury is compatible with periostitis and it constitutes the first record of this type of pathologies in non-crocodylomorph pseudosuchians. As the causes for this benign injury, it is inferred a non-traumatic stress followed by a pyogenic infection.
Fil: Ponce, Denis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
description Pseudosuchians were the dominant group of archosaurs on continental ecosystems during the Triassic. However, studies that report palaeopathologies based on osteohistological evidence in this group are scarce. Here, two cases of palaeopathologies found in appendicular bones of two clades of pseudosuchians are presented: Aetosauria, a distal fragment of the fibula of Aetosauroides scagliai and Erpetosuchidae, the distal half of the tibia of Tarjadia ruthae from the Ischigualasto and Chañares formations, respectively (province of La Rioja, Argentina). The cortex in both specimens is composed of woven-fibred bone in the deepest part and by parallel-fibred bone in the subperiosteum. Towards the outermost portion of the cortex, a thin layer of periosteal bone with an irregular margin is recorded, mainly formed by a fibrolamellar bone vascularized with relatively wide and anastomosed radial canals. These features are compatible with a specific tissue recognized in pathological conditions, the radial fibrolamellar bone (RFB), generated by periosteal reactive bone. Additionally, a thin layer of parallel-fibred/lamellar bone crossed this structure in A. scagliai and surrounding the outermost portion in both specimens. The presence of RFB shows an abnormally accelerated bony overgrowth. However, due to the short thickness of this layer and the subsequent formation of parallel-fibred bone, it indicates a slowdown in its development and a possible recovery of the pathological condition. The configuration of the injury is compatible with periostitis and it constitutes the first record of this type of pathologies in non-crocodylomorph pseudosuchians. As the causes for this benign injury, it is inferred a non-traumatic stress followed by a pyogenic infection.
publishDate 2024
dc.date.none.fl_str_mv 2024-10
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/11336/249317
Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 69; 3; 10-2024; 395-402
0567-7920
1732-2421
CONICET Digital
CONICET
url http://hdl.handle.net/11336/249317
identifier_str_mv Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; First record of palaeopathologies on appendicular bones of the Triassic pseudosuchians Erpetosuchidae and Aetosauria based on microstructural approaches; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 69; 3; 10-2024; 395-402
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/url/https://www.app.pan.pl/article/item/app011412024.html
info:eu-repo/semantics/altIdentifier/doi/10.4202/app.01141.2024
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
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 13.070432

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