The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur

Autores
Ibiricu, Lucio Manuel; Martinez, Ruben Dario; Casal, Gabriel; Cerda, Ignacio Alejandro
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background: Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not welldocumented and is poorly understood among non-avian Theropoda. Methods/Principal Findings: The taphonomic association of individuals from the Bajo Barreal Formation and aspects of their bone histology suggest gregarious behavior for Aniksosaurus, during at least a portion of the life history of this species. Histology indicates that the specimens were juvenile to sub-adult individuals. In addition, morphological differences between individuals, particularly proportions of the appendicular bones, are probably related to body-size dimorphism rather than ontogenetic stage. Conclusions/Significance: Gregarious behaviour may have conferred a selective advantage on Aniksosaurus individuals, contributing to their successful exploitation of the Cretaceous paleoenvironment preserved in the Bajo Barreal Formation. The monospecific assemblage of Aniksosaurus specimens constitutes only the second body fossil association of small, coelurosaurian theropods in South America and adds valuable information about the paleoecologies of non-avian theropod dinosaurs, particularly in the early Late Cretaceous of Patagonia.
Fil: Ibiricu, Lucio Manuel. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Nacional Patagonico;
Fil: Martinez, Ruben Dario. Universidad Nacional de la Patagonia "san Juan Bosco";
Fil: Casal, Gabriel. Universidad Nacional de la Patagonia "san Juan Bosco";
Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones En Paleobiologia y Geologia;
Materia
THEROPODA
BEHAVIOUR
BAJO BARREAL FORMATION
LATE CRETACEOUS
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:11336/518

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spelling The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod DinosaurIbiricu, Lucio ManuelMartinez, Ruben DarioCasal, GabrielCerda, Ignacio AlejandroTHEROPODABEHAVIOURBAJO BARREAL FORMATIONLATE CRETACEOUShttps://purl.org/becyt/ford/1Background: Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not welldocumented and is poorly understood among non-avian Theropoda. Methods/Principal Findings: The taphonomic association of individuals from the Bajo Barreal Formation and aspects of their bone histology suggest gregarious behavior for Aniksosaurus, during at least a portion of the life history of this species. Histology indicates that the specimens were juvenile to sub-adult individuals. In addition, morphological differences between individuals, particularly proportions of the appendicular bones, are probably related to body-size dimorphism rather than ontogenetic stage. Conclusions/Significance: Gregarious behaviour may have conferred a selective advantage on Aniksosaurus individuals, contributing to their successful exploitation of the Cretaceous paleoenvironment preserved in the Bajo Barreal Formation. The monospecific assemblage of Aniksosaurus specimens constitutes only the second body fossil association of small, coelurosaurian theropods in South America and adds valuable information about the paleoecologies of non-avian theropod dinosaurs, particularly in the early Late Cretaceous of Patagonia.Fil: Ibiricu, Lucio Manuel. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Nacional Patagonico;Fil: Martinez, Ruben Dario. Universidad Nacional de la Patagonia "san Juan Bosco";Fil: Casal, Gabriel. Universidad Nacional de la Patagonia "san Juan Bosco";Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones En Paleobiologia y Geologia;Public Library Science2013-05-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/518Ibiricu, Lucio Manuel; Martinez, Ruben Dario; Casal, Gabriel; Cerda, Ignacio Alejandro; The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur; Public Library Science; Plos One; 8; 5; 15-5-2013; 1-11;1932-6203enginfo:eu-repo/semantics/altIdentifier/url/doi:10.1371/journal.pone.0064253info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:31Zoai:ri.conicet.gov.ar:11336/518instacron: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 10:45:31.45CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
title The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
spellingShingle The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
Ibiricu, Lucio Manuel
THEROPODA
BEHAVIOUR
BAJO BARREAL FORMATION
LATE CRETACEOUS
title_short The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
title_full The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
title_fullStr The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
title_full_unstemmed The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
title_sort The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur
dc.creator.none.fl_str_mv Ibiricu, Lucio Manuel
Martinez, Ruben Dario
Casal, Gabriel
Cerda, Ignacio Alejandro
author Ibiricu, Lucio Manuel
author_facet Ibiricu, Lucio Manuel
Martinez, Ruben Dario
Casal, Gabriel
Cerda, Ignacio Alejandro
author_role author
author2 Martinez, Ruben Dario
Casal, Gabriel
Cerda, Ignacio Alejandro
author2_role author
author
author
dc.subject.none.fl_str_mv THEROPODA
BEHAVIOUR
BAJO BARREAL FORMATION
LATE CRETACEOUS
topic THEROPODA
BEHAVIOUR
BAJO BARREAL FORMATION
LATE CRETACEOUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Background: Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not welldocumented and is poorly understood among non-avian Theropoda. Methods/Principal Findings: The taphonomic association of individuals from the Bajo Barreal Formation and aspects of their bone histology suggest gregarious behavior for Aniksosaurus, during at least a portion of the life history of this species. Histology indicates that the specimens were juvenile to sub-adult individuals. In addition, morphological differences between individuals, particularly proportions of the appendicular bones, are probably related to body-size dimorphism rather than ontogenetic stage. Conclusions/Significance: Gregarious behaviour may have conferred a selective advantage on Aniksosaurus individuals, contributing to their successful exploitation of the Cretaceous paleoenvironment preserved in the Bajo Barreal Formation. The monospecific assemblage of Aniksosaurus specimens constitutes only the second body fossil association of small, coelurosaurian theropods in South America and adds valuable information about the paleoecologies of non-avian theropod dinosaurs, particularly in the early Late Cretaceous of Patagonia.
Fil: Ibiricu, Lucio Manuel. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Nacional Patagonico;
Fil: Martinez, Ruben Dario. Universidad Nacional de la Patagonia "san Juan Bosco";
Fil: Casal, Gabriel. Universidad Nacional de la Patagonia "san Juan Bosco";
Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones En Paleobiologia y Geologia;
description Background: Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not welldocumented and is poorly understood among non-avian Theropoda. Methods/Principal Findings: The taphonomic association of individuals from the Bajo Barreal Formation and aspects of their bone histology suggest gregarious behavior for Aniksosaurus, during at least a portion of the life history of this species. Histology indicates that the specimens were juvenile to sub-adult individuals. In addition, morphological differences between individuals, particularly proportions of the appendicular bones, are probably related to body-size dimorphism rather than ontogenetic stage. Conclusions/Significance: Gregarious behaviour may have conferred a selective advantage on Aniksosaurus individuals, contributing to their successful exploitation of the Cretaceous paleoenvironment preserved in the Bajo Barreal Formation. The monospecific assemblage of Aniksosaurus specimens constitutes only the second body fossil association of small, coelurosaurian theropods in South America and adds valuable information about the paleoecologies of non-avian theropod dinosaurs, particularly in the early Late Cretaceous of Patagonia.
publishDate 2013
dc.date.none.fl_str_mv 2013-05-15
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/11336/518
Ibiricu, Lucio Manuel; Martinez, Ruben Dario; Casal, Gabriel; Cerda, Ignacio Alejandro; The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur; Public Library Science; Plos One; 8; 5; 15-5-2013; 1-11;
1932-6203
url http://hdl.handle.net/11336/518
identifier_str_mv Ibiricu, Lucio Manuel; Martinez, Ruben Dario; Casal, Gabriel; Cerda, Ignacio Alejandro; The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur; Public Library Science; Plos One; 8; 5; 15-5-2013; 1-11;
1932-6203
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/doi:10.1371/journal.pone.0064253
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 Public Library Science
publisher.none.fl_str_mv Public Library Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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