Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines

Autores
Wu, Yun Hsin; Chiappe, Luis M.; Bottjer, David J.; Nava, William; Martinelli, Agustín Guillermo
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Polyphyodonty—multiple tooth generations—in Mesozoic birds has been confirmed since the nineteenth century. Their dental cycle had been assessed through sparse data from tooth roots revealed through broken jawbones and disattached teeth. However, detailed descriptions of their tooth cycling are lacking, and the specifics of their replacement patterns remain largely unknown. Here we present unprecedented µCT data from three enantiornithine specimens from the Upper Cretaceous of southeastern Brazil. The high resolution µCT data show an alternating dental replacement pattern in the premaxillae, consistent with the widespread pattern amongst extinct and extant reptiles. The dentary also reveals dental replacement at different stages. These results strongly suggest that an alternating pattern was typical of enantiornithine birds. µCT data show that new teeth start lingually within the alveoli, resorb roots of functional teeth and migrate labially into their pulp cavities at an early stage, similar to modern crocodilians. Our results imply that the control mechanism for tooth cycling is conserved during the transition between non-avian reptiles and birds. These first 3D reconstructions of enantiornithine dental replacement demonstrate that 3D data are essential to understand the evolution and deep homology of archosaurian tooth cycling.
Fil: Wu, Yun Hsin. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
Fil: Chiappe, Luis M.. Natural History Museum of Los Angeles County; Estados Unidos
Fil: Bottjer, David J.. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
Fil: Nava, William. 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
Materia
CRETACICO
TOOTH REPLACEMENT
AVES
ENANTIORNITHINES
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:11336/148800
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithinesWu, Yun HsinChiappe, Luis M.Bottjer, David J.Nava, WilliamMartinelli, Agustín GuillermoCRETACICOTOOTH REPLACEMENTAVESENANTIORNITHINEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Polyphyodonty—multiple tooth generations—in Mesozoic birds has been confirmed since the nineteenth century. Their dental cycle had been assessed through sparse data from tooth roots revealed through broken jawbones and disattached teeth. However, detailed descriptions of their tooth cycling are lacking, and the specifics of their replacement patterns remain largely unknown. Here we present unprecedented µCT data from three enantiornithine specimens from the Upper Cretaceous of southeastern Brazil. The high resolution µCT data show an alternating dental replacement pattern in the premaxillae, consistent with the widespread pattern amongst extinct and extant reptiles. The dentary also reveals dental replacement at different stages. These results strongly suggest that an alternating pattern was typical of enantiornithine birds. µCT data show that new teeth start lingually within the alveoli, resorb roots of functional teeth and migrate labially into their pulp cavities at an early stage, similar to modern crocodilians. Our results imply that the control mechanism for tooth cycling is conserved during the transition between non-avian reptiles and birds. These first 3D reconstructions of enantiornithine dental replacement demonstrate that 3D data are essential to understand the evolution and deep homology of archosaurian tooth cycling.Fil: Wu, Yun Hsin. University of Southern California; Estados Unidos. University of Southern California; Estados UnidosFil: Chiappe, Luis M.. Natural History Museum of Los Angeles County; Estados UnidosFil: Bottjer, David J.. University of Southern California; Estados Unidos. University of Southern California; Estados UnidosFil: Nava, William. 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"; ArgentinaNature2021-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/148800Wu, Yun Hsin; Chiappe, Luis M.; Bottjer, David J.; Nava, William; Martinelli, Agustín Guillermo; Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines; Nature; Scientific Reports; 11; 1; 9-2021; 1-122045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-021-98335-8info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-021-98335-8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:13:40Zoai:ri.conicet.gov.ar:11336/148800instacron: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:34982025-09-10 13:13:40.93CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
title Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
spellingShingle Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
Wu, Yun Hsin
CRETACICO
TOOTH REPLACEMENT
AVES
ENANTIORNITHINES
title_short Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
title_full Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
title_fullStr Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
title_full_unstemmed Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
title_sort Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
dc.creator.none.fl_str_mv Wu, Yun Hsin
Chiappe, Luis M.
Bottjer, David J.
Nava, William
Martinelli, Agustín Guillermo
author Wu, Yun Hsin
author_facet Wu, Yun Hsin
Chiappe, Luis M.
Bottjer, David J.
Nava, William
Martinelli, Agustín Guillermo
author_role author
author2 Chiappe, Luis M.
Bottjer, David J.
Nava, William
Martinelli, Agustín Guillermo
author2_role author
author
author
author
dc.subject.none.fl_str_mv CRETACICO
TOOTH REPLACEMENT
AVES
ENANTIORNITHINES
topic CRETACICO
TOOTH REPLACEMENT
AVES
ENANTIORNITHINES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Polyphyodonty—multiple tooth generations—in Mesozoic birds has been confirmed since the nineteenth century. Their dental cycle had been assessed through sparse data from tooth roots revealed through broken jawbones and disattached teeth. However, detailed descriptions of their tooth cycling are lacking, and the specifics of their replacement patterns remain largely unknown. Here we present unprecedented µCT data from three enantiornithine specimens from the Upper Cretaceous of southeastern Brazil. The high resolution µCT data show an alternating dental replacement pattern in the premaxillae, consistent with the widespread pattern amongst extinct and extant reptiles. The dentary also reveals dental replacement at different stages. These results strongly suggest that an alternating pattern was typical of enantiornithine birds. µCT data show that new teeth start lingually within the alveoli, resorb roots of functional teeth and migrate labially into their pulp cavities at an early stage, similar to modern crocodilians. Our results imply that the control mechanism for tooth cycling is conserved during the transition between non-avian reptiles and birds. These first 3D reconstructions of enantiornithine dental replacement demonstrate that 3D data are essential to understand the evolution and deep homology of archosaurian tooth cycling.
Fil: Wu, Yun Hsin. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
Fil: Chiappe, Luis M.. Natural History Museum of Los Angeles County; Estados Unidos
Fil: Bottjer, David J.. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
Fil: Nava, William. 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
description Polyphyodonty—multiple tooth generations—in Mesozoic birds has been confirmed since the nineteenth century. Their dental cycle had been assessed through sparse data from tooth roots revealed through broken jawbones and disattached teeth. However, detailed descriptions of their tooth cycling are lacking, and the specifics of their replacement patterns remain largely unknown. Here we present unprecedented µCT data from three enantiornithine specimens from the Upper Cretaceous of southeastern Brazil. The high resolution µCT data show an alternating dental replacement pattern in the premaxillae, consistent with the widespread pattern amongst extinct and extant reptiles. The dentary also reveals dental replacement at different stages. These results strongly suggest that an alternating pattern was typical of enantiornithine birds. µCT data show that new teeth start lingually within the alveoli, resorb roots of functional teeth and migrate labially into their pulp cavities at an early stage, similar to modern crocodilians. Our results imply that the control mechanism for tooth cycling is conserved during the transition between non-avian reptiles and birds. These first 3D reconstructions of enantiornithine dental replacement demonstrate that 3D data are essential to understand the evolution and deep homology of archosaurian tooth cycling.
publishDate 2021
dc.date.none.fl_str_mv 2021-09
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/11336/148800
Wu, Yun Hsin; Chiappe, Luis M.; Bottjer, David J.; Nava, William; Martinelli, Agustín Guillermo; Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines; Nature; Scientific Reports; 11; 1; 9-2021; 1-12
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/148800
identifier_str_mv Wu, Yun Hsin; Chiappe, Luis M.; Bottjer, David J.; Nava, William; Martinelli, Agustín Guillermo; Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines; Nature; Scientific Reports; 11; 1; 9-2021; 1-12
2045-2322
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://www.nature.com/articles/s41598-021-98335-8
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-021-98335-8
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
dc.publisher.none.fl_str_mv Nature
publisher.none.fl_str_mv Nature
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 12.993085

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