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dc.contributor.author
Hechenleitner, Esteban Martín
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dc.contributor.author
Taborda, Jeremías Ramón Alejandro
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dc.contributor.author
Fiorelli, Lucas Ernesto
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dc.contributor.author
Grellet-Tinner, Gerald
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dc.contributor.author
Núñez Campero, Segundo Ricardo
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dc.date.available
2020-01-23T22:27:53Z
dc.date.issued
2018-06
dc.identifier.citation
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
dc.identifier.issn
2167-8359
dc.identifier.uri
http://hdl.handle.net/11336/95767
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
PeerJ
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
EGGS
dc.subject
FINITE ELEMENT ANALYSES
dc.subject
LA RIOJA
dc.subject
NESTING SITE
dc.subject
SANAGASTA
dc.subject.classification
Paleontología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-15T14:57:56Z
dc.journal.volume
6
dc.journal.pagination
1-19
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Hechenleitner, E. Martín. Centro Regional de Investigaciones Cientificas y Transferencia Tecnologica La Rioja (CRILAR) - (Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET; Argentina
dc.description.fil
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
dc.description.fil
Fil: Fiorelli, Lucas Ernesto. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
dc.description.fil
Fil: Grellet-Tinner, Gerald. Centro Regional de Investigaciones Cientificas y TRansferencia Tecnológica La Rioja (CRILAR) - Provincia de La Rioja - UNLaR - SEGEMAR - UNCa - CONICET.; Argentina
dc.description.fil
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
dc.journal.title
PeerJ
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/4971
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.7717/peerj.4971
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