New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina

Autores
Lecuona, Agustina; Desojo, Julia Brenda; Cerda, Ignacio Alejandro
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Gracilisuchus stipanicicorum is a basal suchian from the Late Triassic Chañares Formation (Argentina), nested in the recently erected Gracilisuchidae, along with Turfanosuchus dabanensis and Yonghesuchus sangbiensis from China. The six known Gracilisuchus specimens preserve most of the skeleton, lacking most of the scapular girdle and forelimb. Our latest fieldworks have unearthed two specimens preserving previously unknown elements, including the humerus, radius, and ulna, as well as the femur, presacral vertebrae, and paramedian osteoderms. The femur and osteoderms were histologically sectioned, a study never undertaken in Gracilisuchidae. The anatomical analysis revealed characters in the new elements that improve the understanding of the anatomy of Gracilisuchus and its identification. Bone histology revealed that the specimen CRILAR PV 490 died before reaching somatic maturity and that growth was relatively slow compared to other pseudosuchians. This study deepens the knowledge of the anatomy of Gracilisuchus and constitutes a further step towards a broader understanding of Gracilisuchidae and basal suchian clades.
Gracilisuchus stipanicicorum Romer, 1972 est un suchien souche de la Formation Chañares du Trias supérieur (Argentine), inclus dans les Gracilisuchidae, un groupe récemment créé avec Turfanosuchus dabanensis Young, 1973 et Yonghesuchus sangbiensis Wu et al., 2001 de Chine. Les six spécimens connus de Gracilisuchus Romer, 1972 conservent la majorité du squelette, à l’exception de la plupart de la ceinture scapulaire et du membre antérieur. Nos derniers travaux sur le terrain, ont exhumé deux spécimens qui préservent des éléments non encore connus, tels que l’humérus, le radius et l’ulna, ainsi qu’un fémur, des vertèbres et ostéodermes. Le fémur et les ostéodermes paramédiaux ont été sectionnés en vue d’une histologie, encore jamais abordée chez les Gracilisuchidae. L’analyse anatomique a révélé, dans les nouveaux éléments, des caracréristiques qui améliorent notre compréhension de l’anatomie de Gracilisuchus. L’histologie osseuse, elle, a révélé que l’individu CRILAR PV 490 était mort avant atteindre sa taille adulte et que sa croissance était relativement lente comparée à celle d’autres pseudosuchiens. Cette étude approfondit la connaissance de Gracilisuchus et constitue un pas supplémentaire vers une meilleure compréhension de Gracilisuchidae et des clades de suchiens souches.
Fil: Lecuona, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. División Paleontología Vertebrados, Facultad de Ciencias Naturales y Museo; Argentina
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Materia
Chañares Formation
Triassic
Pseudosuchia
Gracilisuchidae
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:11336/146909
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/146909
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), ArgentinaNouvelle information sur l’anatomie et l’histologie de Gracilisuchus stipanicicorum (Archosauria : Pseudosuchia) de la Formation Chañares (Carnian inférieur), ArgentineLecuona, AgustinaDesojo, Julia BrendaCerda, Ignacio AlejandroChañares FormationTriassicPseudosuchiaGracilisuchidaehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Gracilisuchus stipanicicorum is a basal suchian from the Late Triassic Chañares Formation (Argentina), nested in the recently erected Gracilisuchidae, along with Turfanosuchus dabanensis and Yonghesuchus sangbiensis from China. The six known Gracilisuchus specimens preserve most of the skeleton, lacking most of the scapular girdle and forelimb. Our latest fieldworks have unearthed two specimens preserving previously unknown elements, including the humerus, radius, and ulna, as well as the femur, presacral vertebrae, and paramedian osteoderms. The femur and osteoderms were histologically sectioned, a study never undertaken in Gracilisuchidae. The anatomical analysis revealed characters in the new elements that improve the understanding of the anatomy of Gracilisuchus and its identification. Bone histology revealed that the specimen CRILAR PV 490 died before reaching somatic maturity and that growth was relatively slow compared to other pseudosuchians. This study deepens the knowledge of the anatomy of Gracilisuchus and constitutes a further step towards a broader understanding of Gracilisuchidae and basal suchian clades.Gracilisuchus stipanicicorum Romer, 1972 est un suchien souche de la Formation Chañares du Trias supérieur (Argentine), inclus dans les Gracilisuchidae, un groupe récemment créé avec Turfanosuchus dabanensis Young, 1973 et Yonghesuchus sangbiensis Wu et al., 2001 de Chine. Les six spécimens connus de Gracilisuchus Romer, 1972 conservent la majorité du squelette, à l’exception de la plupart de la ceinture scapulaire et du membre antérieur. Nos derniers travaux sur le terrain, ont exhumé deux spécimens qui préservent des éléments non encore connus, tels que l’humérus, le radius et l’ulna, ainsi qu’un fémur, des vertèbres et ostéodermes. Le fémur et les ostéodermes paramédiaux ont été sectionnés en vue d’une histologie, encore jamais abordée chez les Gracilisuchidae. L’analyse anatomique a révélé, dans les nouveaux éléments, des caracréristiques qui améliorent notre compréhension de l’anatomie de Gracilisuchus. L’histologie osseuse, elle, a révélé que l’individu CRILAR PV 490 était mort avant atteindre sa taille adulte et que sa croissance était relativement lente comparée à celle d’autres pseudosuchiens. Cette étude approfondit la connaissance de Gracilisuchus et constitue un pas supplémentaire vers une meilleure compréhension de Gracilisuchidae et des clades de suchiens souches.Fil: Lecuona, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Universidad Nacional de Río Negro; ArgentinaFil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. División Paleontología Vertebrados, Facultad de Ciencias Naturales y Museo; ArgentinaFil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaThe Museum Science Press2020-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146909Lecuona, Agustina; Desojo, Julia Brenda; Cerda, Ignacio Alejandro; New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina; The Museum Science Press; Comptes Rendus Palevol; 19; 3; 9-2020; 40-621777-571XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://sciencepress.mnhn.fr/en/periodiques/comptes-rendus-palevol/19/3info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2020v19a3info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:47Zoai:ri.conicet.gov.ar:11336/146909instacron: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 09:50:47.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
Nouvelle information sur l’anatomie et l’histologie de Gracilisuchus stipanicicorum (Archosauria : Pseudosuchia) de la Formation Chañares (Carnian inférieur), Argentine
title New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
spellingShingle New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
Lecuona, Agustina
Chañares Formation
Triassic
Pseudosuchia
Gracilisuchidae
title_short New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
title_full New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
title_fullStr New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
title_full_unstemmed New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
title_sort New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina
dc.creator.none.fl_str_mv Lecuona, Agustina
Desojo, Julia Brenda
Cerda, Ignacio Alejandro
author Lecuona, Agustina
author_facet Lecuona, Agustina
Desojo, Julia Brenda
Cerda, Ignacio Alejandro
author_role author
author2 Desojo, Julia Brenda
Cerda, Ignacio Alejandro
author2_role author
author
dc.subject.none.fl_str_mv Chañares Formation
Triassic
Pseudosuchia
Gracilisuchidae
topic Chañares Formation
Triassic
Pseudosuchia
Gracilisuchidae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Gracilisuchus stipanicicorum is a basal suchian from the Late Triassic Chañares Formation (Argentina), nested in the recently erected Gracilisuchidae, along with Turfanosuchus dabanensis and Yonghesuchus sangbiensis from China. The six known Gracilisuchus specimens preserve most of the skeleton, lacking most of the scapular girdle and forelimb. Our latest fieldworks have unearthed two specimens preserving previously unknown elements, including the humerus, radius, and ulna, as well as the femur, presacral vertebrae, and paramedian osteoderms. The femur and osteoderms were histologically sectioned, a study never undertaken in Gracilisuchidae. The anatomical analysis revealed characters in the new elements that improve the understanding of the anatomy of Gracilisuchus and its identification. Bone histology revealed that the specimen CRILAR PV 490 died before reaching somatic maturity and that growth was relatively slow compared to other pseudosuchians. This study deepens the knowledge of the anatomy of Gracilisuchus and constitutes a further step towards a broader understanding of Gracilisuchidae and basal suchian clades.
Gracilisuchus stipanicicorum Romer, 1972 est un suchien souche de la Formation Chañares du Trias supérieur (Argentine), inclus dans les Gracilisuchidae, un groupe récemment créé avec Turfanosuchus dabanensis Young, 1973 et Yonghesuchus sangbiensis Wu et al., 2001 de Chine. Les six spécimens connus de Gracilisuchus Romer, 1972 conservent la majorité du squelette, à l’exception de la plupart de la ceinture scapulaire et du membre antérieur. Nos derniers travaux sur le terrain, ont exhumé deux spécimens qui préservent des éléments non encore connus, tels que l’humérus, le radius et l’ulna, ainsi qu’un fémur, des vertèbres et ostéodermes. Le fémur et les ostéodermes paramédiaux ont été sectionnés en vue d’une histologie, encore jamais abordée chez les Gracilisuchidae. L’analyse anatomique a révélé, dans les nouveaux éléments, des caracréristiques qui améliorent notre compréhension de l’anatomie de Gracilisuchus. L’histologie osseuse, elle, a révélé que l’individu CRILAR PV 490 était mort avant atteindre sa taille adulte et que sa croissance était relativement lente comparée à celle d’autres pseudosuchiens. Cette étude approfondit la connaissance de Gracilisuchus et constitue un pas supplémentaire vers une meilleure compréhension de Gracilisuchidae et des clades de suchiens souches.
Fil: Lecuona, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. División Paleontología Vertebrados, Facultad de Ciencias Naturales y Museo; Argentina
Fil: Cerda, Ignacio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
description Gracilisuchus stipanicicorum is a basal suchian from the Late Triassic Chañares Formation (Argentina), nested in the recently erected Gracilisuchidae, along with Turfanosuchus dabanensis and Yonghesuchus sangbiensis from China. The six known Gracilisuchus specimens preserve most of the skeleton, lacking most of the scapular girdle and forelimb. Our latest fieldworks have unearthed two specimens preserving previously unknown elements, including the humerus, radius, and ulna, as well as the femur, presacral vertebrae, and paramedian osteoderms. The femur and osteoderms were histologically sectioned, a study never undertaken in Gracilisuchidae. The anatomical analysis revealed characters in the new elements that improve the understanding of the anatomy of Gracilisuchus and its identification. Bone histology revealed that the specimen CRILAR PV 490 died before reaching somatic maturity and that growth was relatively slow compared to other pseudosuchians. This study deepens the knowledge of the anatomy of Gracilisuchus and constitutes a further step towards a broader understanding of Gracilisuchidae and basal suchian clades.
publishDate 2020
dc.date.none.fl_str_mv 2020-09
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/11336/146909
Lecuona, Agustina; Desojo, Julia Brenda; Cerda, Ignacio Alejandro; New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina; The Museum Science Press; Comptes Rendus Palevol; 19; 3; 9-2020; 40-62
1777-571X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/146909
identifier_str_mv Lecuona, Agustina; Desojo, Julia Brenda; Cerda, Ignacio Alejandro; New information on the anatomy and histology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia) from the Chañares Formation (early Carnian), Argentina; The Museum Science Press; Comptes Rendus Palevol; 19; 3; 9-2020; 40-62
1777-571X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://sciencepress.mnhn.fr/en/periodiques/comptes-rendus-palevol/19/3
info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2020v19a3
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 The Museum Science Press
publisher.none.fl_str_mv The Museum Science Press
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 13.13397

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