The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax
[EN] Reconstructing the morphology of the Neanderthal rib cage not only provides information about the general evolution of human body shape but also aids understanding of functional anatomy and energetics. Despite this paleobiological importance there is still debate about the nature and extent of...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universidad de León |
| Repositorio: | BULERIA. Repositorio Institucional de la Universidad de León |
| OAI Identifier: | oai:buleria.unileon.es:10612/26659 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0047248414002486 https://hdl.handle.net/10612/26659 |
| Access Level: | acceso abierto |
| Palabra clave: | Antropología física Paleontología Costal skeleton Body shape Integration Semilandmarks Homo neanderthalensis 2402 Antropología (Física) 2402.99 Otras (Evolución Humana) 2410.02 Anatomía Humana 2416.99 Otras (Paleontología Humana) |
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The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thoraxBastir, MarkusGarcía Martínez, DanielEstalrrich Albo, AlmudenaGarcía Tabernero, AntonioHuguet i Pàmies, RosaRíos Frutos, LuisBarash, Alon, 1972-Recheis, WolfgangRasilla Vives, Marco de laRosas González, Antonio 1960-Antropología físicaPaleontologíaCostal skeletonBody shapeIntegrationSemilandmarksHomo neanderthalensis2402 Antropología (Física)2402.99 Otras (Evolución Humana)2410.02 Anatomía Humana2416.99 Otras (Paleontología Humana)[EN] Reconstructing the morphology of the Neanderthal rib cage not only provides information about the general evolution of human body shape but also aids understanding of functional anatomy and energetics. Despite this paleobiological importance there is still debate about the nature and extent of variations in the size and shape of the Neandertal thorax. The El Sidrón Neandertals can be used to contribute to this debate, providing new costal remains ranging from fully preserved and undistorted ribs to highly fragmented elements. Six first ribs are particularly well preserved and offer the opportunity to analyze thorax morphology in Neandertals. The aims of this paper are to present this new material, to compare the ontogenetic trajectories of the first ribs between Neandertals and modern humans, and, using geometric morphometrics, to test the hypothesis of morphological integration between the first rib and overall thorax morphology. The first ribs of the El Sidrón adult Neandertals are smaller in centroid size and tend to be less curved when compared with those of modern humans, but are similar to Kebara 2. Our results further show that the straightening of the first ribs is significantly correlated with a straightening of the ribs of the upper thorax (R = 0.66; p < 0.0001) in modern humans, suggesting modularity in the upper and lower thorax units as reported in other hominins. It also supports the hypothesis that the upper thorax of Neandertals differs in shape from modern humans with more anteriorly projecting upper ribs during inspiration. These differences could have biomechanical consequences and account for stronger muscle attachments in Neandertals. Different upper thorax shape would also imply a different spatial arrangement of the shoulder girdle and articulation with the humerus (torsion) and its connection to the upper thorax. Future research should address these inferences in the context of Neandertal overall body morphologySIThis project is funded by the Leakey Foundation, and by the Spanish Ministry of Economy and Competitivity: CGL2012-37279 (MB), and CGL2012-36682 (AR). El Sidrón fieldwork is supported by Consejería de Cultura del Principado de Asturias, Grant sponsor: Convenio Universidad de Oviedo-CSIC, Grant number: 060501040023ElsevierAntropologia FisicaFacultad de Ciencias Biologicas y Ambientales2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://www.sciencedirect.com/science/article/pii/S0047248414002486https://hdl.handle.net/10612/26659reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/MINECO/Programa Nacional de Investigación Fundamental/CGL2012-36682info:eu-repo/grantAgreement/MINECO/Programa Nacional de Investigación Fundamental/CGL2012-37279http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/266592026-06-24T12:43:27Z |
| dc.title.none.fl_str_mv |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| title |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| spellingShingle |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax Bastir, Markus Antropología física Paleontología Costal skeleton Body shape Integration Semilandmarks Homo neanderthalensis 2402 Antropología (Física) 2402.99 Otras (Evolución Humana) 2410.02 Anatomía Humana 2416.99 Otras (Paleontología Humana) |
| title_short |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| title_full |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| title_fullStr |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| title_full_unstemmed |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| title_sort |
The relevance of the first ribs of the El Sidrón site (Asturias, Spain) for the understanding of the Neandertal thorax |
| dc.creator.none.fl_str_mv |
Bastir, Markus García Martínez, Daniel Estalrrich Albo, Almudena García Tabernero, Antonio Huguet i Pàmies, Rosa Ríos Frutos, Luis Barash, Alon, 1972- Recheis, Wolfgang Rasilla Vives, Marco de la Rosas González, Antonio 1960- |
| author |
Bastir, Markus |
| author_facet |
Bastir, Markus García Martínez, Daniel Estalrrich Albo, Almudena García Tabernero, Antonio Huguet i Pàmies, Rosa Ríos Frutos, Luis Barash, Alon, 1972- Recheis, Wolfgang Rasilla Vives, Marco de la Rosas González, Antonio 1960- |
| author_role |
author |
| author2 |
García Martínez, Daniel Estalrrich Albo, Almudena García Tabernero, Antonio Huguet i Pàmies, Rosa Ríos Frutos, Luis Barash, Alon, 1972- Recheis, Wolfgang Rasilla Vives, Marco de la Rosas González, Antonio 1960- |
| author2_role |
author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Antropologia Fisica Facultad de Ciencias Biologicas y Ambientales |
| dc.subject.none.fl_str_mv |
Antropología física Paleontología Costal skeleton Body shape Integration Semilandmarks Homo neanderthalensis 2402 Antropología (Física) 2402.99 Otras (Evolución Humana) 2410.02 Anatomía Humana 2416.99 Otras (Paleontología Humana) |
| topic |
Antropología física Paleontología Costal skeleton Body shape Integration Semilandmarks Homo neanderthalensis 2402 Antropología (Física) 2402.99 Otras (Evolución Humana) 2410.02 Anatomía Humana 2416.99 Otras (Paleontología Humana) |
| description |
[EN] Reconstructing the morphology of the Neanderthal rib cage not only provides information about the general evolution of human body shape but also aids understanding of functional anatomy and energetics. Despite this paleobiological importance there is still debate about the nature and extent of variations in the size and shape of the Neandertal thorax. The El Sidrón Neandertals can be used to contribute to this debate, providing new costal remains ranging from fully preserved and undistorted ribs to highly fragmented elements. Six first ribs are particularly well preserved and offer the opportunity to analyze thorax morphology in Neandertals. The aims of this paper are to present this new material, to compare the ontogenetic trajectories of the first ribs between Neandertals and modern humans, and, using geometric morphometrics, to test the hypothesis of morphological integration between the first rib and overall thorax morphology. The first ribs of the El Sidrón adult Neandertals are smaller in centroid size and tend to be less curved when compared with those of modern humans, but are similar to Kebara 2. Our results further show that the straightening of the first ribs is significantly correlated with a straightening of the ribs of the upper thorax (R = 0.66; p < 0.0001) in modern humans, suggesting modularity in the upper and lower thorax units as reported in other hominins. It also supports the hypothesis that the upper thorax of Neandertals differs in shape from modern humans with more anteriorly projecting upper ribs during inspiration. These differences could have biomechanical consequences and account for stronger muscle attachments in Neandertals. Different upper thorax shape would also imply a different spatial arrangement of the shoulder girdle and articulation with the humerus (torsion) and its connection to the upper thorax. Future research should address these inferences in the context of Neandertal overall body morphology |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion |
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article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
https://www.sciencedirect.com/science/article/pii/S0047248414002486 https://hdl.handle.net/10612/26659 |
| url |
https://www.sciencedirect.com/science/article/pii/S0047248414002486 https://hdl.handle.net/10612/26659 |
| dc.language.none.fl_str_mv |
Inglés |
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Inglés |
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info:eu-repo/grantAgreement/MINECO/Programa Nacional de Investigación Fundamental/CGL2012-36682 info:eu-repo/grantAgreement/MINECO/Programa Nacional de Investigación Fundamental/CGL2012-37279 |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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Elsevier |
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Elsevier |
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