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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/86179
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/86179
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T12:15:00Zoai: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:34982025-10-22 12:15:00.412CONICET 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
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 12.982451

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