Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveolooli...

Autores
Grellet-Tinner, Gerald; Fiorelli, Lucas Ernesto; Salvador, Rodrigo Brincalepe
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The water vapor conductance (GH2O) of the neosauropod eggs from the Lower Cretaceous Sanagasta nesting site in La Rioja Province, Argentina, was examined and compared with other Cretaceous Argentinean oological material. The 2900 mgH2O/day·Torr GH2O of the Sanagasta eggshells confirms an extremely moist nesting environment and supports field observations of dug-out nests in a geothermal setting. The observed thinning of the outer eggshell surface during incubation increases gas conductance and concomitantly decreases eggshell mechanical resistance during the late ontogenetic stages, thus facilitating embryonic development and hatching. The Sanagasta and Entre Ros Province faveoloolithid eggs display the highest and comparable GH2O values and share several morphological and diagenetic characters, indicating comparable nesting strategy in geothermal settings. However, the faveoloolithid Yaminué and La Pampa Province specimens cluster together with lower GH2O values closer to the megaloolithid eggs. The GH2O of the megaloolithid egg Megaloolithus patagonicus was reconsidered and new results are now congruent with other reported megaloolithid GH2O values. Additionally, we hypothesize that Y-shaped pore canals of M. patagonicus, which upper sections reach only the top third or half eggshell thickness and, a wider section in the middle would not compromise the overall egg mechanical resistance like vertical pores connecting directly the outer to the inner eggshell surfaces. Such pore spatial arrangement and geometry would enhance, as the eggshell thins during incubation, a greater GH2O, GO2 and GCO2 and facilitate embryonic development in high moisture nesting contents. Overall, data suggests that neosauropod nesting and brooding behaviors were dependent on elevated moisture nesting environments.
Fil: Grellet-Tinner, Gerald. Field Museum of National History; Estados Unidos
Fil: Fiorelli, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
Fil: Salvador, Rodrigo Brincalepe. Museu de Zoologia; Brasil. Universidade de Sao Paulo; Brasil
Materia
Eggshell Functional Properties
Nesting Environments
Reproduction
Neosauropod
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:11336/68601
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68601
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggsGrellet-Tinner, GeraldFiorelli, Lucas ErnestoSalvador, Rodrigo BrincalepeEggshell Functional PropertiesNesting EnvironmentsReproductionNeosauropodhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The water vapor conductance (GH2O) of the neosauropod eggs from the Lower Cretaceous Sanagasta nesting site in La Rioja Province, Argentina, was examined and compared with other Cretaceous Argentinean oological material. The 2900 mgH2O/day·Torr GH2O of the Sanagasta eggshells confirms an extremely moist nesting environment and supports field observations of dug-out nests in a geothermal setting. The observed thinning of the outer eggshell surface during incubation increases gas conductance and concomitantly decreases eggshell mechanical resistance during the late ontogenetic stages, thus facilitating embryonic development and hatching. The Sanagasta and Entre Ros Province faveoloolithid eggs display the highest and comparable GH2O values and share several morphological and diagenetic characters, indicating comparable nesting strategy in geothermal settings. However, the faveoloolithid Yaminué and La Pampa Province specimens cluster together with lower GH2O values closer to the megaloolithid eggs. The GH2O of the megaloolithid egg Megaloolithus patagonicus was reconsidered and new results are now congruent with other reported megaloolithid GH2O values. Additionally, we hypothesize that Y-shaped pore canals of M. patagonicus, which upper sections reach only the top third or half eggshell thickness and, a wider section in the middle would not compromise the overall egg mechanical resistance like vertical pores connecting directly the outer to the inner eggshell surfaces. Such pore spatial arrangement and geometry would enhance, as the eggshell thins during incubation, a greater GH2O, GO2 and GCO2 and facilitate embryonic development in high moisture nesting contents. Overall, data suggests that neosauropod nesting and brooding behaviors were dependent on elevated moisture nesting environments.Fil: Grellet-Tinner, Gerald. Field Museum of National History; Estados UnidosFil: Fiorelli, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; ArgentinaFil: Salvador, Rodrigo Brincalepe. Museu de Zoologia; Brasil. Universidade de Sao Paulo; BrasilSociety for Sedimentary Geology2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68601Grellet-Tinner, Gerald; Fiorelli, Lucas Ernesto; Salvador, Rodrigo Brincalepe; Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs; Society for Sedimentary Geology; Palaios; 27; 1; 1-2012; 35-470883-1351CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.2110/palo.2011.p11-061rinfo:eu-repo/semantics/altIdentifier/doi/10.2110/palo.2011.p11-061rinfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/27/1/35-47/146209info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:49Zoai:ri.conicet.gov.ar:11336/68601instacron: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 09:56:49.723CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
title Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
spellingShingle Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
Grellet-Tinner, Gerald
Eggshell Functional Properties
Nesting Environments
Reproduction
Neosauropod
title_short Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
title_full Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
title_fullStr Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
title_full_unstemmed Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
title_sort Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs
dc.creator.none.fl_str_mv Grellet-Tinner, Gerald
Fiorelli, Lucas Ernesto
Salvador, Rodrigo Brincalepe
author Grellet-Tinner, Gerald
author_facet Grellet-Tinner, Gerald
Fiorelli, Lucas Ernesto
Salvador, Rodrigo Brincalepe
author_role author
author2 Fiorelli, Lucas Ernesto
Salvador, Rodrigo Brincalepe
author2_role author
author
dc.subject.none.fl_str_mv Eggshell Functional Properties
Nesting Environments
Reproduction
Neosauropod
topic Eggshell Functional Properties
Nesting Environments
Reproduction
Neosauropod
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 water vapor conductance (GH2O) of the neosauropod eggs from the Lower Cretaceous Sanagasta nesting site in La Rioja Province, Argentina, was examined and compared with other Cretaceous Argentinean oological material. The 2900 mgH2O/day·Torr GH2O of the Sanagasta eggshells confirms an extremely moist nesting environment and supports field observations of dug-out nests in a geothermal setting. The observed thinning of the outer eggshell surface during incubation increases gas conductance and concomitantly decreases eggshell mechanical resistance during the late ontogenetic stages, thus facilitating embryonic development and hatching. The Sanagasta and Entre Ros Province faveoloolithid eggs display the highest and comparable GH2O values and share several morphological and diagenetic characters, indicating comparable nesting strategy in geothermal settings. However, the faveoloolithid Yaminué and La Pampa Province specimens cluster together with lower GH2O values closer to the megaloolithid eggs. The GH2O of the megaloolithid egg Megaloolithus patagonicus was reconsidered and new results are now congruent with other reported megaloolithid GH2O values. Additionally, we hypothesize that Y-shaped pore canals of M. patagonicus, which upper sections reach only the top third or half eggshell thickness and, a wider section in the middle would not compromise the overall egg mechanical resistance like vertical pores connecting directly the outer to the inner eggshell surfaces. Such pore spatial arrangement and geometry would enhance, as the eggshell thins during incubation, a greater GH2O, GO2 and GCO2 and facilitate embryonic development in high moisture nesting contents. Overall, data suggests that neosauropod nesting and brooding behaviors were dependent on elevated moisture nesting environments.
Fil: Grellet-Tinner, Gerald. Field Museum of National History; Estados Unidos
Fil: Fiorelli, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
Fil: Salvador, Rodrigo Brincalepe. Museu de Zoologia; Brasil. Universidade de Sao Paulo; Brasil
description The water vapor conductance (GH2O) of the neosauropod eggs from the Lower Cretaceous Sanagasta nesting site in La Rioja Province, Argentina, was examined and compared with other Cretaceous Argentinean oological material. The 2900 mgH2O/day·Torr GH2O of the Sanagasta eggshells confirms an extremely moist nesting environment and supports field observations of dug-out nests in a geothermal setting. The observed thinning of the outer eggshell surface during incubation increases gas conductance and concomitantly decreases eggshell mechanical resistance during the late ontogenetic stages, thus facilitating embryonic development and hatching. The Sanagasta and Entre Ros Province faveoloolithid eggs display the highest and comparable GH2O values and share several morphological and diagenetic characters, indicating comparable nesting strategy in geothermal settings. However, the faveoloolithid Yaminué and La Pampa Province specimens cluster together with lower GH2O values closer to the megaloolithid eggs. The GH2O of the megaloolithid egg Megaloolithus patagonicus was reconsidered and new results are now congruent with other reported megaloolithid GH2O values. Additionally, we hypothesize that Y-shaped pore canals of M. patagonicus, which upper sections reach only the top third or half eggshell thickness and, a wider section in the middle would not compromise the overall egg mechanical resistance like vertical pores connecting directly the outer to the inner eggshell surfaces. Such pore spatial arrangement and geometry would enhance, as the eggshell thins during incubation, a greater GH2O, GO2 and GCO2 and facilitate embryonic development in high moisture nesting contents. Overall, data suggests that neosauropod nesting and brooding behaviors were dependent on elevated moisture nesting environments.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/68601
Grellet-Tinner, Gerald; Fiorelli, Lucas Ernesto; Salvador, Rodrigo Brincalepe; Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs; Society for Sedimentary Geology; Palaios; 27; 1; 1-2012; 35-47
0883-1351
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68601
identifier_str_mv Grellet-Tinner, Gerald; Fiorelli, Lucas Ernesto; Salvador, Rodrigo Brincalepe; Water vapor conductance of the lower cretaceous dinosaurian eggs from sanagasta, la rioja, argentina: Paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs; Society for Sedimentary Geology; Palaios; 27; 1; 1-2012; 35-47
0883-1351
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://www.bioone.org/doi/abs/10.2110/palo.2011.p11-061r
info:eu-repo/semantics/altIdentifier/doi/10.2110/palo.2011.p11-061r
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/27/1/35-47/146209
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 Society for Sedimentary Geology
publisher.none.fl_str_mv Society for Sedimentary Geology
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 13.260194

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