A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds

Autores
Fernández, Mariela.; Garcia, Rodolfo A.; Fiorelli, Lucas E.; Scolaro, Jose A.; Salvador, Rodrigo B.; Cotaro, Carlos N.; Kaiser, Gary W.; Dyke, Gareth J.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte; Argentina
Fil: Fernández, Mariela. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina
Fil: Garcia, Rodolfo A. Universidad Nacional de Rio Negro. Sede Alto Valle; Argentina
Fil: Garcia, Rodolfo A. Instituto de Investigaciones En Paleobiologia y Geologia; Argentina
Fil: Fiorelli, Lucas E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fiorelli, Lucas E. Centro Regional de Investigaciones Cientificas y Transferencia Tecnológica de Anillaco; Argentina
Fil: Scolaro, Jose A. Universidad Nacional de la Patagonia "san Juan Bosco"; Argentina.
Fil: Scolaro, Jose A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Salvador, Rodrigo B. Universidade de Sao Paulo. Instituto Quã­mica de Sao Carlos; Brasil
Fil: Cotaro, Carlos N. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Kaiser, Gary W. Royal British Columbia Museum; Canadá
Fil: Dyke, Gareth J. University Of Southampton; Reino Unido
We report the first evidence for a nesting colony of Mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m2. These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods.
Materia
Paleontología
Nesting Colony
Ornithothoracines
Enantiornithes
Late Cretaceous
Patagonia
Argentina
Paleontología
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/2640
Acceder
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birdsFernández, Mariela.Garcia, Rodolfo A.Fiorelli, Lucas E.Scolaro, Jose A.Salvador, Rodrigo B.Cotaro, Carlos N.Kaiser, Gary W.Dyke, Gareth J.PaleontologíaNesting ColonyOrnithothoracinesEnantiornithesLate CretaceousPatagoniaArgentinaPaleontologíaFil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte; ArgentinaFil: Fernández, Mariela. Instituto de Investigación en Biodiversidad y Medioambiente; ArgentinaFil: Garcia, Rodolfo A. Universidad Nacional de Rio Negro. Sede Alto Valle; ArgentinaFil: Garcia, Rodolfo A. Instituto de Investigaciones En Paleobiologia y Geologia; ArgentinaFil: Fiorelli, Lucas E. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fiorelli, Lucas E. Centro Regional de Investigaciones Cientificas y Transferencia Tecnológica de Anillaco; ArgentinaFil: Scolaro, Jose A. Universidad Nacional de la Patagonia "san Juan Bosco"; Argentina.Fil: Scolaro, Jose A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Salvador, Rodrigo B. Universidade de Sao Paulo. Instituto Quã­mica de Sao Carlos; BrasilFil: Cotaro, Carlos N. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Kaiser, Gary W. Royal British Columbia Museum; CanadáFil: Dyke, Gareth J. University Of Southampton; Reino UnidoWe report the first evidence for a nesting colony of Mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m2. These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods.2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfFernández, Mariela., Garcia, Rodolfo A., Fiorelli, Lucas E., Scolaro, Jose A., Salvador, Rodrigo B., et al. (2013). A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds. Public Library Of Science; Plos One; 8; 4; pp.1-221932-6203http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061030http://hdl.handle.net/11336/7806https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2640http://dx.doi.org/10.1371/journal.pone.0061030eng8Plos Oneinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-11T10:49:30Zoai:rid.unrn.edu.ar:20.500.12049/2640instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-11 10:49:30.942RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
title A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
spellingShingle A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
Fernández, Mariela.
Paleontología
Nesting Colony
Ornithothoracines
Enantiornithes
Late Cretaceous
Patagonia
Argentina
Paleontología
title_short A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
title_full A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
title_fullStr A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
title_full_unstemmed A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
title_sort A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
dc.creator.none.fl_str_mv Fernández, Mariela.
Garcia, Rodolfo A.
Fiorelli, Lucas E.
Scolaro, Jose A.
Salvador, Rodrigo B.
Cotaro, Carlos N.
Kaiser, Gary W.
Dyke, Gareth J.
author Fernández, Mariela.
author_facet Fernández, Mariela.
Garcia, Rodolfo A.
Fiorelli, Lucas E.
Scolaro, Jose A.
Salvador, Rodrigo B.
Cotaro, Carlos N.
Kaiser, Gary W.
Dyke, Gareth J.
author_role author
author2 Garcia, Rodolfo A.
Fiorelli, Lucas E.
Scolaro, Jose A.
Salvador, Rodrigo B.
Cotaro, Carlos N.
Kaiser, Gary W.
Dyke, Gareth J.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Paleontología
Nesting Colony
Ornithothoracines
Enantiornithes
Late Cretaceous
Patagonia
Argentina
Paleontología
topic Paleontología
Nesting Colony
Ornithothoracines
Enantiornithes
Late Cretaceous
Patagonia
Argentina
Paleontología
dc.description.none.fl_txt_mv Fil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte; Argentina
Fil: Fernández, Mariela. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina
Fil: Garcia, Rodolfo A. Universidad Nacional de Rio Negro. Sede Alto Valle; Argentina
Fil: Garcia, Rodolfo A. Instituto de Investigaciones En Paleobiologia y Geologia; Argentina
Fil: Fiorelli, Lucas E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fiorelli, Lucas E. Centro Regional de Investigaciones Cientificas y Transferencia Tecnológica de Anillaco; Argentina
Fil: Scolaro, Jose A. Universidad Nacional de la Patagonia "san Juan Bosco"; Argentina.
Fil: Scolaro, Jose A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Salvador, Rodrigo B. Universidade de Sao Paulo. Instituto Quã­mica de Sao Carlos; Brasil
Fil: Cotaro, Carlos N. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Kaiser, Gary W. Royal British Columbia Museum; Canadá
Fil: Dyke, Gareth J. University Of Southampton; Reino Unido
We report the first evidence for a nesting colony of Mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m2. These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods.
description Fil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte; Argentina
publishDate 2013
dc.date.none.fl_str_mv 2013-01
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 Fernández, Mariela., Garcia, Rodolfo A., Fiorelli, Lucas E., Scolaro, Jose A., Salvador, Rodrigo B., et al. (2013). A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds. Public Library Of Science; Plos One; 8; 4; pp.1-22
1932-6203
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061030
http://hdl.handle.net/11336/7806
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2640
http://dx.doi.org/10.1371/journal.pone.0061030
identifier_str_mv Fernández, Mariela., Garcia, Rodolfo A., Fiorelli, Lucas E., Scolaro, Jose A., Salvador, Rodrigo B., et al. (2013). A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds. Public Library Of Science; Plos One; 8; 4; pp.1-22
1932-6203
url http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061030
http://hdl.handle.net/11336/7806
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2640
http://dx.doi.org/10.1371/journal.pone.0061030
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 8
Plos One
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1842976470339682304
score 12.993085

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