Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs

Synchrotron radiation X-ray microdiffraction (SR-μXRD) has been applied for the first time as a fundamental method of analysis to unveil crocodilian teeth growth and development. Teeth from a fossil crocodylomorph from the Upper Cretaceous site of Lo Hueco (Spain) and a modern crocodylian from the l...

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Detalles Bibliográficos
Autores: Vallcorba, O., Canillas, M., Audije-Gil, Julia, Barroso Barcenilla, Fernando, González Martín, A., Molera, J., Rodríguez, M.A., Cambra-Moo, Oscar
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/4478
Acceso en línea:https://hdl.handle.net/20.500.14352/4478
Access Level:acceso abierto
Palabra clave:568.14:551.763
Teeth
Cretaceous
Crocodylomorph
Crocodylus niloticus
Synchrotron radiation
X-ray microdiffraction
Biological apatite
Paleontología
2416 Paleontología
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spelling Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphsVallcorba, O.Canillas, M.Audije-Gil, JuliaBarroso Barcenilla, FernandoGonzález Martín, A.Molera, J.Rodríguez, M.A.Cambra-Moo, Oscar568.14:551.763TeethCretaceousCrocodylomorphCrocodylus niloticusSynchrotron radiationX-ray microdiffractionBiological apatitePaleontología2416 PaleontologíaSynchrotron radiation X-ray microdiffraction (SR-μXRD) has been applied for the first time as a fundamental method of analysis to unveil crocodilian teeth growth and development. Teeth from a fossil crocodylomorph from the Upper Cretaceous site of Lo Hueco (Spain) and a modern crocodylian from the living species Crocodylus niloticus have been analysed. Both samples have been studied through Polarized Light Microscopy, Scanning Electron Microscopy coupled with Energy Dispersive X-Ray Spectroscopy, Confocal Raman Spectroscopy, and SR-μXRD. Significant differences have been found in hydroxyapatite (HA) crystallite sizes and texture, and the evolution of these two features along teeth depth. The main differences observed in crystallite size are related to postdepositional processes and/or the environmental and functional pressures of teeth during crocodylomorph life, very different from that of the modern specimen. Regarding the crystalline texture in the tooth enamel, it can be linked to teeth functionality during crocodilian life, causing the directed growth of HA crystallites due to the mechanical stress to which they are subjected.ElsevierUniversidad Complutense de Madrid20212021-12-0120212021-12-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/4478reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttps://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/44782026-06-02T12:44:21Z
dc.title.none.fl_str_mv Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
title Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
spellingShingle Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
Vallcorba, O.
568.14:551.763
Teeth
Cretaceous
Crocodylomorph
Crocodylus niloticus
Synchrotron radiation
X-ray microdiffraction
Biological apatite
Paleontología
2416 Paleontología
title_short Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
title_full Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
title_fullStr Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
title_full_unstemmed Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
title_sort Synchrotron X-ray microdiffraction to study dental structures in Cretaceous crocodylomorphs
dc.creator.none.fl_str_mv Vallcorba, O.
Canillas, M.
Audije-Gil, Julia
Barroso Barcenilla, Fernando
González Martín, A.
Molera, J.
Rodríguez, M.A.
Cambra-Moo, Oscar
author Vallcorba, O.
author_facet Vallcorba, O.
Canillas, M.
Audije-Gil, Julia
Barroso Barcenilla, Fernando
González Martín, A.
Molera, J.
Rodríguez, M.A.
Cambra-Moo, Oscar
author_role author
author2 Canillas, M.
Audije-Gil, Julia
Barroso Barcenilla, Fernando
González Martín, A.
Molera, J.
Rodríguez, M.A.
Cambra-Moo, Oscar
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 568.14:551.763
Teeth
Cretaceous
Crocodylomorph
Crocodylus niloticus
Synchrotron radiation
X-ray microdiffraction
Biological apatite
Paleontología
2416 Paleontología
topic 568.14:551.763
Teeth
Cretaceous
Crocodylomorph
Crocodylus niloticus
Synchrotron radiation
X-ray microdiffraction
Biological apatite
Paleontología
2416 Paleontología
description Synchrotron radiation X-ray microdiffraction (SR-μXRD) has been applied for the first time as a fundamental method of analysis to unveil crocodilian teeth growth and development. Teeth from a fossil crocodylomorph from the Upper Cretaceous site of Lo Hueco (Spain) and a modern crocodylian from the living species Crocodylus niloticus have been analysed. Both samples have been studied through Polarized Light Microscopy, Scanning Electron Microscopy coupled with Energy Dispersive X-Ray Spectroscopy, Confocal Raman Spectroscopy, and SR-μXRD. Significant differences have been found in hydroxyapatite (HA) crystallite sizes and texture, and the evolution of these two features along teeth depth. The main differences observed in crystallite size are related to postdepositional processes and/or the environmental and functional pressures of teeth during crocodylomorph life, very different from that of the modern specimen. Regarding the crystalline texture in the tooth enamel, it can be linked to teeth functionality during crocodilian life, causing the directed growth of HA crystallites due to the mechanical stress to which they are subjected.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-12-01
2021
2021-12-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/4478
url https://hdl.handle.net/20.500.14352/4478
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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