Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans
- Autores
- Delgado Burbano, Miguel Eduardo
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Archaic and modern humans differ in a range of craniodental features. From a taxonomic and phylogenetic perspective, it is essential to distinguish between species accurately through detailed morphological characterizations. This study analyzes the size and shape variation of the enamel-dentine junction (EDJ) of upper molars from two hominin species, early Neanderthals from Krapina (N = 13) and mid-Holocene European modern humans (N = 14), to assess the extent of their endostructural morphological differentiation. The EDJ was obtained through microtomographic scans of each molar using segmentation procedures. Three-dimensional landmarks semilandmarks and 3D geometric morphometric methods were employed to investigate EDJ size and shape variation through univariate (t-test), multivariate exploratory, and classification methods (PCA and LDA). The results indicate that the shape of the EDJ and cervix of M2 differentiates Krapina Neanderthals from mid-Holocene European modern humans with a high degree of accuracy (~85%). Furthermore, EDJ size and dental nonmetric traits expressed in this structure provide additional information that is useful for distinguishing between the two species. Compared to modern humans, Krapina Neanderthals exhibit reduced dental diversity. From an endostructural perspective, this study provides additional insights into early Neanderthals´ morphological diversification relative to modern humans, which is valuable for studying middle and late Pleistocene hominin evolution.
Fil: Delgado Burbano, Miguel Eduardo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Antropológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina - Materia
-
NEANDERTHALS
MODERN HUMANS
MICROCT
TEETH - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/248162
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Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern HumansDelgado Burbano, Miguel EduardoNEANDERTHALSMODERN HUMANSMICROCTTEETHhttps://purl.org/becyt/ford/6.1https://purl.org/becyt/ford/6Archaic and modern humans differ in a range of craniodental features. From a taxonomic and phylogenetic perspective, it is essential to distinguish between species accurately through detailed morphological characterizations. This study analyzes the size and shape variation of the enamel-dentine junction (EDJ) of upper molars from two hominin species, early Neanderthals from Krapina (N = 13) and mid-Holocene European modern humans (N = 14), to assess the extent of their endostructural morphological differentiation. The EDJ was obtained through microtomographic scans of each molar using segmentation procedures. Three-dimensional landmarks semilandmarks and 3D geometric morphometric methods were employed to investigate EDJ size and shape variation through univariate (t-test), multivariate exploratory, and classification methods (PCA and LDA). The results indicate that the shape of the EDJ and cervix of M2 differentiates Krapina Neanderthals from mid-Holocene European modern humans with a high degree of accuracy (~85%). Furthermore, EDJ size and dental nonmetric traits expressed in this structure provide additional information that is useful for distinguishing between the two species. Compared to modern humans, Krapina Neanderthals exhibit reduced dental diversity. From an endostructural perspective, this study provides additional insights into early Neanderthals´ morphological diversification relative to modern humans, which is valuable for studying middle and late Pleistocene hominin evolution.Fil: Delgado Burbano, Miguel Eduardo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Antropológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaSCIE Publishing2024-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/248162Delgado Burbano, Miguel Eduardo; Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans; SCIE Publishing; Nature Anthropology; 2; 3; 11-2024; 10017-100172959-7641CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciepublish.com/article/pii/277info:eu-repo/semantics/altIdentifier/doi/10.70322/natanthropol.2024.10017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:23Zoai:ri.conicet.gov.ar:11336/248162instacron: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 09:38:23.594CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
title |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
spellingShingle |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans Delgado Burbano, Miguel Eduardo NEANDERTHALS MODERN HUMANS MICROCT TEETH |
title_short |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
title_full |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
title_fullStr |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
title_full_unstemmed |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
title_sort |
Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans |
dc.creator.none.fl_str_mv |
Delgado Burbano, Miguel Eduardo |
author |
Delgado Burbano, Miguel Eduardo |
author_facet |
Delgado Burbano, Miguel Eduardo |
author_role |
author |
dc.subject.none.fl_str_mv |
NEANDERTHALS MODERN HUMANS MICROCT TEETH |
topic |
NEANDERTHALS MODERN HUMANS MICROCT TEETH |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/6.1 https://purl.org/becyt/ford/6 |
dc.description.none.fl_txt_mv |
Archaic and modern humans differ in a range of craniodental features. From a taxonomic and phylogenetic perspective, it is essential to distinguish between species accurately through detailed morphological characterizations. This study analyzes the size and shape variation of the enamel-dentine junction (EDJ) of upper molars from two hominin species, early Neanderthals from Krapina (N = 13) and mid-Holocene European modern humans (N = 14), to assess the extent of their endostructural morphological differentiation. The EDJ was obtained through microtomographic scans of each molar using segmentation procedures. Three-dimensional landmarks semilandmarks and 3D geometric morphometric methods were employed to investigate EDJ size and shape variation through univariate (t-test), multivariate exploratory, and classification methods (PCA and LDA). The results indicate that the shape of the EDJ and cervix of M2 differentiates Krapina Neanderthals from mid-Holocene European modern humans with a high degree of accuracy (~85%). Furthermore, EDJ size and dental nonmetric traits expressed in this structure provide additional information that is useful for distinguishing between the two species. Compared to modern humans, Krapina Neanderthals exhibit reduced dental diversity. From an endostructural perspective, this study provides additional insights into early Neanderthals´ morphological diversification relative to modern humans, which is valuable for studying middle and late Pleistocene hominin evolution. Fil: Delgado Burbano, Miguel Eduardo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Antropológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina |
description |
Archaic and modern humans differ in a range of craniodental features. From a taxonomic and phylogenetic perspective, it is essential to distinguish between species accurately through detailed morphological characterizations. This study analyzes the size and shape variation of the enamel-dentine junction (EDJ) of upper molars from two hominin species, early Neanderthals from Krapina (N = 13) and mid-Holocene European modern humans (N = 14), to assess the extent of their endostructural morphological differentiation. The EDJ was obtained through microtomographic scans of each molar using segmentation procedures. Three-dimensional landmarks semilandmarks and 3D geometric morphometric methods were employed to investigate EDJ size and shape variation through univariate (t-test), multivariate exploratory, and classification methods (PCA and LDA). The results indicate that the shape of the EDJ and cervix of M2 differentiates Krapina Neanderthals from mid-Holocene European modern humans with a high degree of accuracy (~85%). Furthermore, EDJ size and dental nonmetric traits expressed in this structure provide additional information that is useful for distinguishing between the two species. Compared to modern humans, Krapina Neanderthals exhibit reduced dental diversity. From an endostructural perspective, this study provides additional insights into early Neanderthals´ morphological diversification relative to modern humans, which is valuable for studying middle and late Pleistocene hominin evolution. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-11 |
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/11336/248162 Delgado Burbano, Miguel Eduardo; Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans; SCIE Publishing; Nature Anthropology; 2; 3; 11-2024; 10017-10017 2959-7641 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/248162 |
identifier_str_mv |
Delgado Burbano, Miguel Eduardo; Maxillary Molar Enamel Dentine-Junction Shape Differences between Krapina Neanderthals and Modern Humans; SCIE Publishing; Nature Anthropology; 2; 3; 11-2024; 10017-10017 2959-7641 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.sciepublish.com/article/pii/277 info:eu-repo/semantics/altIdentifier/doi/10.70322/natanthropol.2024.10017 |
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 |
SCIE Publishing |
publisher.none.fl_str_mv |
SCIE Publishing |
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) |
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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13.070432 |