Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system
- Autores
- LeBlanc, Aaron R. H.; Brink, Kristin S.; Whitney, Megan R.; Abdala, Nestor Fernando; Reisz, Robert R.
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The mammalian dentition is uniquely characterized by a combination of precise occlusion, permanent adult teeth and a unique tooth attachment system. Unlike the ankylosed teeth in most reptiles, mammal teeth are supported by a ligamentous tissue that suspends each tooth in its socket, providing flexible and compliant tooth attachment that prolongs the life of each tooth and maintains occlusal relationships. Here we investigate dental ontogeny through histological examination of a wide range of extinct synapsid lineages to assess whether the ligamentous tooth attachment system is unique to mammals and to determine how it evolved. This study shows for the first time that the ligamentous tooth attachment system is not unique to crown mammals within Synapsida, having arisen in several non-mammalian therapsid clades as a result of neoteny and progenesis in dental ontogeny. Mammalian tooth attachment is here re-interpreted as a paedomorphic condition relative to the ancestral synapsid form of tooth attachment.
Fil: LeBlanc, Aaron R. H.. University of Toronto; Canadá
Fil: Brink, Kristin S.. University of Toronto; Canadá
Fil: Whitney, Megan R.. University of Washington; Estados Unidos
Fil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina
Fil: Reisz, Robert R.. University of Toronto; Canadá - Materia
-
PELYCOSAUR
THERAPSID
DENTAL HISTOLOGY
PAEDOMORPHOSIS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/86179
Ver los metadatos del registro completo
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Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment systemLeBlanc, Aaron R. H.Brink, Kristin S.Whitney, Megan R.Abdala, Nestor FernandoReisz, Robert R.PELYCOSAURTHERAPSIDDENTAL HISTOLOGYPAEDOMORPHOSIShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The mammalian dentition is uniquely characterized by a combination of precise occlusion, permanent adult teeth and a unique tooth attachment system. Unlike the ankylosed teeth in most reptiles, mammal teeth are supported by a ligamentous tissue that suspends each tooth in its socket, providing flexible and compliant tooth attachment that prolongs the life of each tooth and maintains occlusal relationships. Here we investigate dental ontogeny through histological examination of a wide range of extinct synapsid lineages to assess whether the ligamentous tooth attachment system is unique to mammals and to determine how it evolved. This study shows for the first time that the ligamentous tooth attachment system is not unique to crown mammals within Synapsida, having arisen in several non-mammalian therapsid clades as a result of neoteny and progenesis in dental ontogeny. Mammalian tooth attachment is here re-interpreted as a paedomorphic condition relative to the ancestral synapsid form of tooth attachment.Fil: LeBlanc, Aaron R. H.. University of Toronto; CanadáFil: Brink, Kristin S.. University of Toronto; CanadáFil: Whitney, Megan R.. University of Washington; Estados UnidosFil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Reisz, Robert R.. University of Toronto; CanadáThe Royal Society2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86179LeBlanc, Aaron R. H.; Brink, Kristin S.; Whitney, Megan R.; Abdala, Nestor Fernando; Reisz, Robert R.; Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 285; 1890; 11-2018; 1-100962-84521471-2954CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2018.1792info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2018.1792info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:42:18Zoai:ri.conicet.gov.ar:11336/86179instacron: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 10:42:19.226CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
title |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
spellingShingle |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system LeBlanc, Aaron R. H. PELYCOSAUR THERAPSID DENTAL HISTOLOGY PAEDOMORPHOSIS |
title_short |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
title_full |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
title_fullStr |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
title_full_unstemmed |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
title_sort |
Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system |
dc.creator.none.fl_str_mv |
LeBlanc, Aaron R. H. Brink, Kristin S. Whitney, Megan R. Abdala, Nestor Fernando Reisz, Robert R. |
author |
LeBlanc, Aaron R. H. |
author_facet |
LeBlanc, Aaron R. H. Brink, Kristin S. Whitney, Megan R. Abdala, Nestor Fernando Reisz, Robert R. |
author_role |
author |
author2 |
Brink, Kristin S. Whitney, Megan R. Abdala, Nestor Fernando Reisz, Robert R. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
PELYCOSAUR THERAPSID DENTAL HISTOLOGY PAEDOMORPHOSIS |
topic |
PELYCOSAUR THERAPSID DENTAL HISTOLOGY PAEDOMORPHOSIS |
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 mammalian dentition is uniquely characterized by a combination of precise occlusion, permanent adult teeth and a unique tooth attachment system. Unlike the ankylosed teeth in most reptiles, mammal teeth are supported by a ligamentous tissue that suspends each tooth in its socket, providing flexible and compliant tooth attachment that prolongs the life of each tooth and maintains occlusal relationships. Here we investigate dental ontogeny through histological examination of a wide range of extinct synapsid lineages to assess whether the ligamentous tooth attachment system is unique to mammals and to determine how it evolved. This study shows for the first time that the ligamentous tooth attachment system is not unique to crown mammals within Synapsida, having arisen in several non-mammalian therapsid clades as a result of neoteny and progenesis in dental ontogeny. Mammalian tooth attachment is here re-interpreted as a paedomorphic condition relative to the ancestral synapsid form of tooth attachment. Fil: LeBlanc, Aaron R. H.. University of Toronto; Canadá Fil: Brink, Kristin S.. University of Toronto; Canadá Fil: Whitney, Megan R.. University of Washington; Estados Unidos Fil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina Fil: Reisz, Robert R.. University of Toronto; Canadá |
description |
The mammalian dentition is uniquely characterized by a combination of precise occlusion, permanent adult teeth and a unique tooth attachment system. Unlike the ankylosed teeth in most reptiles, mammal teeth are supported by a ligamentous tissue that suspends each tooth in its socket, providing flexible and compliant tooth attachment that prolongs the life of each tooth and maintains occlusal relationships. Here we investigate dental ontogeny through histological examination of a wide range of extinct synapsid lineages to assess whether the ligamentous tooth attachment system is unique to mammals and to determine how it evolved. This study shows for the first time that the ligamentous tooth attachment system is not unique to crown mammals within Synapsida, having arisen in several non-mammalian therapsid clades as a result of neoteny and progenesis in dental ontogeny. Mammalian tooth attachment is here re-interpreted as a paedomorphic condition relative to the ancestral synapsid form of tooth attachment. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11 |
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/11336/86179 LeBlanc, Aaron R. H.; Brink, Kristin S.; Whitney, Megan R.; Abdala, Nestor Fernando; Reisz, Robert R.; Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 285; 1890; 11-2018; 1-10 0962-8452 1471-2954 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/86179 |
identifier_str_mv |
LeBlanc, Aaron R. H.; Brink, Kristin S.; Whitney, Megan R.; Abdala, Nestor Fernando; Reisz, Robert R.; Dental ontogeny in extinct synapsids reveals a complex evolutionary history of the mammalian tooth attachment system; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 285; 1890; 11-2018; 1-10 0962-8452 1471-2954 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2018.1792 info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2018.1792 |
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 |
The Royal Society |
publisher.none.fl_str_mv |
The Royal Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844614455885824000 |
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13.070432 |