Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs

Autores
Hechenleitner, Esteban Martín; Taborda, Jeremías Ramón Alejandro; Fiorelli, Lucas Ernesto; Grellet-Tinner, Gerald; Núñez Campero, Segundo Ricardo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The reproduction of titanosaur dinosaurs is still a complex and debated topic. Their Late Cretaceous nesting sites are distributed worldwide and their eggs display substantial morphological variations according to the parent species. In contrast to the typical 1.3-2.0 mm thick shells common to eggs of most titanosaur species (e.g., those that nested in Auca Mahuevo, Tama, Toteşti or Boseong), the Cretaceous Sanagasta eggs of Argentina display an unusual shell thickness of up to 7.9 mm. Their oviposition was synchronous with a palaeogeothermal process, leading to the hypothesis that their extra thick eggshell was an adaptation to this particular nesting environment. Although this hypothesis has already been supported indirectly through several investigations, the mechanical implications of developing such thick shells and how this might have affected the success of hatching remains untested. Finite element analyses estimate that the breaking point of the thick-shelled Sanagasta eggs is 14-45 times higher than for other smaller and equally sized titanosaur eggs. The considerable energetic disadvantage for piping through these thick eggshells suggests that their dissolution during incubation would have been paramount for a successful hatching.
Fil: Hechenleitner, E. Martín. Centro Regional de Investigaciones Cientificas y Transferencia Tecnologica La Rioja (CRILAR) - (Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET; Argentina
Fil: Taborda, Jeremías Ramón Alejandro. Universidad Nacional de Córdoba, Facultad de Ciencias Exactas Físicas y Naturales (FCEFyN), Centro de Investigaciones en Ciencias de la Tierra (CICTERRA-CONICET); Argentina
Fil: Fiorelli, Lucas Ernesto. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
Fil: Grellet-Tinner, Gerald. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
Fil: Nuñez-Campero, Segundo R.. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
Materia
EGGS
FINITE ELEMENT ANALYSES
LA RIOJA
NESTING SITE
SANAGASTA
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:11336/95767

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network_name_str CONICET Digital (CONICET)
spelling Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaursHechenleitner, Esteban MartínTaborda, Jeremías Ramón AlejandroFiorelli, Lucas ErnestoGrellet-Tinner, GeraldNúñez Campero, Segundo RicardoEGGSFINITE ELEMENT ANALYSESLA RIOJANESTING SITESANAGASTAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The reproduction of titanosaur dinosaurs is still a complex and debated topic. Their Late Cretaceous nesting sites are distributed worldwide and their eggs display substantial morphological variations according to the parent species. In contrast to the typical 1.3-2.0 mm thick shells common to eggs of most titanosaur species (e.g., those that nested in Auca Mahuevo, Tama, Toteşti or Boseong), the Cretaceous Sanagasta eggs of Argentina display an unusual shell thickness of up to 7.9 mm. Their oviposition was synchronous with a palaeogeothermal process, leading to the hypothesis that their extra thick eggshell was an adaptation to this particular nesting environment. Although this hypothesis has already been supported indirectly through several investigations, the mechanical implications of developing such thick shells and how this might have affected the success of hatching remains untested. Finite element analyses estimate that the breaking point of the thick-shelled Sanagasta eggs is 14-45 times higher than for other smaller and equally sized titanosaur eggs. The considerable energetic disadvantage for piping through these thick eggshells suggests that their dissolution during incubation would have been paramount for a successful hatching.Fil: Hechenleitner, E. Martín. Centro Regional de Investigaciones Cientificas y Transferencia Tecnologica La Rioja (CRILAR) - (Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET; ArgentinaFil: Taborda, Jeremías Ramón Alejandro. Universidad Nacional de Córdoba, Facultad de Ciencias Exactas Físicas y Naturales (FCEFyN), Centro de Investigaciones en Ciencias de la Tierra (CICTERRA-CONICET); ArgentinaFil: Fiorelli, Lucas Ernesto. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; ArgentinaFil: Grellet-Tinner, Gerald. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; ArgentinaFil: Nuñez-Campero, Segundo R.. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; ArgentinaPeerJ2018-06info: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/11336/95767Hechenleitner, Esteban Martín; Taborda, Jeremías Ramón Alejandro; Fiorelli, Lucas Ernesto; Grellet-Tinner, Gerald; Núñez Campero, Segundo Ricardo; Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs; PeerJ; PeerJ; 6; 6-2018; 1-192167-8359CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/4971info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.4971info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:31Zoai:ri.conicet.gov.ar:11336/95767instacron: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 09:40:31.955CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
title Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
spellingShingle Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
Hechenleitner, Esteban Martín
EGGS
FINITE ELEMENT ANALYSES
LA RIOJA
NESTING SITE
SANAGASTA
title_short Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
title_full Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
title_fullStr Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
title_full_unstemmed Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
title_sort Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
dc.creator.none.fl_str_mv Hechenleitner, Esteban Martín
Taborda, Jeremías Ramón Alejandro
Fiorelli, Lucas Ernesto
Grellet-Tinner, Gerald
Núñez Campero, Segundo Ricardo
author Hechenleitner, Esteban Martín
author_facet Hechenleitner, Esteban Martín
Taborda, Jeremías Ramón Alejandro
Fiorelli, Lucas Ernesto
Grellet-Tinner, Gerald
Núñez Campero, Segundo Ricardo
author_role author
author2 Taborda, Jeremías Ramón Alejandro
Fiorelli, Lucas Ernesto
Grellet-Tinner, Gerald
Núñez Campero, Segundo Ricardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv EGGS
FINITE ELEMENT ANALYSES
LA RIOJA
NESTING SITE
SANAGASTA
topic EGGS
FINITE ELEMENT ANALYSES
LA RIOJA
NESTING SITE
SANAGASTA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The reproduction of titanosaur dinosaurs is still a complex and debated topic. Their Late Cretaceous nesting sites are distributed worldwide and their eggs display substantial morphological variations according to the parent species. In contrast to the typical 1.3-2.0 mm thick shells common to eggs of most titanosaur species (e.g., those that nested in Auca Mahuevo, Tama, Toteşti or Boseong), the Cretaceous Sanagasta eggs of Argentina display an unusual shell thickness of up to 7.9 mm. Their oviposition was synchronous with a palaeogeothermal process, leading to the hypothesis that their extra thick eggshell was an adaptation to this particular nesting environment. Although this hypothesis has already been supported indirectly through several investigations, the mechanical implications of developing such thick shells and how this might have affected the success of hatching remains untested. Finite element analyses estimate that the breaking point of the thick-shelled Sanagasta eggs is 14-45 times higher than for other smaller and equally sized titanosaur eggs. The considerable energetic disadvantage for piping through these thick eggshells suggests that their dissolution during incubation would have been paramount for a successful hatching.
Fil: Hechenleitner, E. Martín. Centro Regional de Investigaciones Cientificas y Transferencia Tecnologica La Rioja (CRILAR) - (Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET; Argentina
Fil: Taborda, Jeremías Ramón Alejandro. Universidad Nacional de Córdoba, Facultad de Ciencias Exactas Físicas y Naturales (FCEFyN), Centro de Investigaciones en Ciencias de la Tierra (CICTERRA-CONICET); Argentina
Fil: Fiorelli, Lucas Ernesto. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
Fil: Grellet-Tinner, Gerald. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
Fil: Nuñez-Campero, Segundo R.. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
description The reproduction of titanosaur dinosaurs is still a complex and debated topic. Their Late Cretaceous nesting sites are distributed worldwide and their eggs display substantial morphological variations according to the parent species. In contrast to the typical 1.3-2.0 mm thick shells common to eggs of most titanosaur species (e.g., those that nested in Auca Mahuevo, Tama, Toteşti or Boseong), the Cretaceous Sanagasta eggs of Argentina display an unusual shell thickness of up to 7.9 mm. Their oviposition was synchronous with a palaeogeothermal process, leading to the hypothesis that their extra thick eggshell was an adaptation to this particular nesting environment. Although this hypothesis has already been supported indirectly through several investigations, the mechanical implications of developing such thick shells and how this might have affected the success of hatching remains untested. Finite element analyses estimate that the breaking point of the thick-shelled Sanagasta eggs is 14-45 times higher than for other smaller and equally sized titanosaur eggs. The considerable energetic disadvantage for piping through these thick eggshells suggests that their dissolution during incubation would have been paramount for a successful hatching.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
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/11336/95767
Hechenleitner, Esteban Martín; Taborda, Jeremías Ramón Alejandro; Fiorelli, Lucas Ernesto; Grellet-Tinner, Gerald; Núñez Campero, Segundo Ricardo; Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs; PeerJ; PeerJ; 6; 6-2018; 1-19
2167-8359
CONICET Digital
CONICET
url http://hdl.handle.net/11336/95767
identifier_str_mv Hechenleitner, Esteban Martín; Taborda, Jeremías Ramón Alejandro; Fiorelli, Lucas Ernesto; Grellet-Tinner, Gerald; Núñez Campero, Segundo Ricardo; Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs; PeerJ; PeerJ; 6; 6-2018; 1-19
2167-8359
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://peerj.com/articles/4971
info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.4971
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 PeerJ
publisher.none.fl_str_mv PeerJ
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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