A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil

Autores
Chiappe, Luis; Nava, William R.; Martinelli, Agustín Guillermo; Tucker, Ryan; Alvarenga, Herculano
Año de publicación
2018
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Despite abundant discoveries of Mesozoic birds in recent decades, knowledge of their evolution during the last 20 million years of the Cretaceous remains scant. However, this time interval is essential to better understand the rise of modern birds and the pattern of avifaunal turnover during the Cretaceous-Paleogene transition. We report on a remarkably rich site (William’s Quarry; discovered in 2004 by WN) contained in the Upper Cretaceous Adamantina Formation (Bauru Group) of southeastern Brazil (Presidente Prudente, western São Paulo State). Excavations at this site have produced hundreds of isolated and partially articulated remains of small to medium-sized enantiornithine birds concentrated in a very small area (approximately 6 m2 ) of red-pink fluvial sandstones and claystones. Representing at least three taxa, the remains include numerous postcranial elements as well as many skull portions (isolated rostra, mandibles, and crania) preserved in three dimensions. As the most abundant avian Mesozoic locality in the Americas and the richest site of Late Cretaceous age in the world, this site provides key information for contrasting hypotheses of avian diversification during the K-Pg transition and the earliest divergences of modern birds. Along with other Late Cretaceous localities from Gondwana, the information revealed at this site indicates a clear abundance of enantiornithine bird species during the ~80–70 mya interval. Such a record is difficult to reconcile with hypotheses arguing that modern (neornithine) birds originated in the southern hemisphere during the Late Cretaceous.
Fil: Chiappe, Luis. Natural History Museum Los Angeles County (n.h.museum Los Angeles County);
Fil: Nava, William R.. Museu de Paleontologia de Marília; Brasil
Fil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Tucker, Ryan. Stellenbosch University; Sudáfrica
Fil: Alvarenga, Herculano. Museu Historia Natural Taubaté; Brasil
78th Annual Meeting of the Society of Vertebrate Paleontology
Albuquerque
Estados Unidos
Society of Vertebrate Paleontology
Materia
AVES
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:11336/275811
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern BrazilChiappe, LuisNava, William R.Martinelli, Agustín GuillermoTucker, RyanAlvarenga, HerculanoAVESCRETACEOUShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Despite abundant discoveries of Mesozoic birds in recent decades, knowledge of their evolution during the last 20 million years of the Cretaceous remains scant. However, this time interval is essential to better understand the rise of modern birds and the pattern of avifaunal turnover during the Cretaceous-Paleogene transition. We report on a remarkably rich site (William’s Quarry; discovered in 2004 by WN) contained in the Upper Cretaceous Adamantina Formation (Bauru Group) of southeastern Brazil (Presidente Prudente, western São Paulo State). Excavations at this site have produced hundreds of isolated and partially articulated remains of small to medium-sized enantiornithine birds concentrated in a very small area (approximately 6 m2 ) of red-pink fluvial sandstones and claystones. Representing at least three taxa, the remains include numerous postcranial elements as well as many skull portions (isolated rostra, mandibles, and crania) preserved in three dimensions. As the most abundant avian Mesozoic locality in the Americas and the richest site of Late Cretaceous age in the world, this site provides key information for contrasting hypotheses of avian diversification during the K-Pg transition and the earliest divergences of modern birds. Along with other Late Cretaceous localities from Gondwana, the information revealed at this site indicates a clear abundance of enantiornithine bird species during the ~80–70 mya interval. Such a record is difficult to reconcile with hypotheses arguing that modern (neornithine) birds originated in the southern hemisphere during the Late Cretaceous.Fil: Chiappe, Luis. Natural History Museum Los Angeles County (n.h.museum Los Angeles County);Fil: Nava, William R.. Museu de Paleontologia de Marília; BrasilFil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Tucker, Ryan. Stellenbosch University; SudáfricaFil: Alvarenga, Herculano. Museu Historia Natural Taubaté; Brasil78th Annual Meeting of the Society of Vertebrate PaleontologyAlbuquerqueEstados UnidosSociety of Vertebrate PaleontologySociety of Vertebrate Paleontology2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/275811A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil; 78th Annual Meeting of the Society of Vertebrate Paleontology; Albuquerque; Estados Unidos; 2018; 105-105CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/future-past-meetings/info:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/03/SVP-2018-program-book-V4-FINAL-with-covers-9-24-18.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:12:52Zoai:ri.conicet.gov.ar:11336/275811instacron: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:34982025-12-23 13:12:52.253CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
title A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
spellingShingle A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
Chiappe, Luis
AVES
CRETACEOUS
title_short A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
title_full A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
title_fullStr A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
title_full_unstemmed A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
title_sort A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil
dc.creator.none.fl_str_mv Chiappe, Luis
Nava, William R.
Martinelli, Agustín Guillermo
Tucker, Ryan
Alvarenga, Herculano
author Chiappe, Luis
author_facet Chiappe, Luis
Nava, William R.
Martinelli, Agustín Guillermo
Tucker, Ryan
Alvarenga, Herculano
author_role author
author2 Nava, William R.
Martinelli, Agustín Guillermo
Tucker, Ryan
Alvarenga, Herculano
author2_role author
author
author
author
dc.subject.none.fl_str_mv AVES
CRETACEOUS
topic AVES
CRETACEOUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Despite abundant discoveries of Mesozoic birds in recent decades, knowledge of their evolution during the last 20 million years of the Cretaceous remains scant. However, this time interval is essential to better understand the rise of modern birds and the pattern of avifaunal turnover during the Cretaceous-Paleogene transition. We report on a remarkably rich site (William’s Quarry; discovered in 2004 by WN) contained in the Upper Cretaceous Adamantina Formation (Bauru Group) of southeastern Brazil (Presidente Prudente, western São Paulo State). Excavations at this site have produced hundreds of isolated and partially articulated remains of small to medium-sized enantiornithine birds concentrated in a very small area (approximately 6 m2 ) of red-pink fluvial sandstones and claystones. Representing at least three taxa, the remains include numerous postcranial elements as well as many skull portions (isolated rostra, mandibles, and crania) preserved in three dimensions. As the most abundant avian Mesozoic locality in the Americas and the richest site of Late Cretaceous age in the world, this site provides key information for contrasting hypotheses of avian diversification during the K-Pg transition and the earliest divergences of modern birds. Along with other Late Cretaceous localities from Gondwana, the information revealed at this site indicates a clear abundance of enantiornithine bird species during the ~80–70 mya interval. Such a record is difficult to reconcile with hypotheses arguing that modern (neornithine) birds originated in the southern hemisphere during the Late Cretaceous.
Fil: Chiappe, Luis. Natural History Museum Los Angeles County (n.h.museum Los Angeles County);
Fil: Nava, William R.. Museu de Paleontologia de Marília; Brasil
Fil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Tucker, Ryan. Stellenbosch University; Sudáfrica
Fil: Alvarenga, Herculano. Museu Historia Natural Taubaté; Brasil
78th Annual Meeting of the Society of Vertebrate Paleontology
Albuquerque
Estados Unidos
Society of Vertebrate Paleontology
description Despite abundant discoveries of Mesozoic birds in recent decades, knowledge of their evolution during the last 20 million years of the Cretaceous remains scant. However, this time interval is essential to better understand the rise of modern birds and the pattern of avifaunal turnover during the Cretaceous-Paleogene transition. We report on a remarkably rich site (William’s Quarry; discovered in 2004 by WN) contained in the Upper Cretaceous Adamantina Formation (Bauru Group) of southeastern Brazil (Presidente Prudente, western São Paulo State). Excavations at this site have produced hundreds of isolated and partially articulated remains of small to medium-sized enantiornithine birds concentrated in a very small area (approximately 6 m2 ) of red-pink fluvial sandstones and claystones. Representing at least three taxa, the remains include numerous postcranial elements as well as many skull portions (isolated rostra, mandibles, and crania) preserved in three dimensions. As the most abundant avian Mesozoic locality in the Americas and the richest site of Late Cretaceous age in the world, this site provides key information for contrasting hypotheses of avian diversification during the K-Pg transition and the earliest divergences of modern birds. Along with other Late Cretaceous localities from Gondwana, the information revealed at this site indicates a clear abundance of enantiornithine bird species during the ~80–70 mya interval. Such a record is difficult to reconcile with hypotheses arguing that modern (neornithine) birds originated in the southern hemisphere during the Late Cretaceous.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/275811
A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil; 78th Annual Meeting of the Society of Vertebrate Paleontology; Albuquerque; Estados Unidos; 2018; 105-105
CONICET Digital
CONICET
url http://hdl.handle.net/11336/275811
identifier_str_mv A remarkable assemblage of enantiornithine birds from the Late Cretaceous of southeastern Brazil; 78th Annual Meeting of the Society of Vertebrate Paleontology; Albuquerque; Estados Unidos; 2018; 105-105
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://vertpaleo.org/future-past-meetings/
info:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/03/SVP-2018-program-book-V4-FINAL-with-covers-9-24-18.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Society of Vertebrate Paleontology
publisher.none.fl_str_mv Society of Vertebrate Paleontology
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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score 12.441415

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