Techniques for digital restoration of cranial elements on three-dimensional surface models

Autores
Filippini, Florencia Soledad; Abdala, Nestor Fernando; Cassini, Guillermo Hernán
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Digital restoration is the process by which preservational or other types of damage are removed to recover the putative original morphology of fossil specimens. In the present work, three-dimensional (3D) surface models of skulls and mandibles of 32 cynognathians (Synapsida, Cynodontia) specimens from South America were digitally restored. The main restoration techniques used come from the literature and are adapted to the particular preservational problem. A classification into three restoration grades (low, medium and high) is proposed, taking into account the number of techniques used and the percentage of damage of the fossil. The higher the degree ofdamage, the greater the complexity of the restoration and the higher the level of interpretationadded. Of all the specimens, 36.5% presented a low grade of restoration, 15% presented a medium grade, and 7.3% a high grade. Among the major damages recorded in the cynognathians specimens the following stand out: partial or total fragmentation of one of the zygomatic arches, total loss of the postdentary bones, fragmentation of the coronoid processes, and lithostatic deformation. The unidirectional deformation could not be completely eliminated in the fossils that presented it, beingthe only unresolved restorative problem. Detailing and documenting the totality of the restorative procedures allows establishing a traceability of the changes applied to the specimens, being extremely useful for researchers confronted with similar problems.
Fil: Filippini, Florencia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina
Fil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Materia
RESTORATION
RETRODEFORMATION
3D MODELS
DIGITAL TECHNIQUES
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:11336/269415
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Techniques for digital restoration of cranial elements on three-dimensional surface modelsFilippini, Florencia SoledadAbdala, Nestor FernandoCassini, Guillermo HernánRESTORATIONRETRODEFORMATION3D MODELSDIGITAL TECHNIQUEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Digital restoration is the process by which preservational or other types of damage are removed to recover the putative original morphology of fossil specimens. In the present work, three-dimensional (3D) surface models of skulls and mandibles of 32 cynognathians (Synapsida, Cynodontia) specimens from South America were digitally restored. The main restoration techniques used come from the literature and are adapted to the particular preservational problem. A classification into three restoration grades (low, medium and high) is proposed, taking into account the number of techniques used and the percentage of damage of the fossil. The higher the degree ofdamage, the greater the complexity of the restoration and the higher the level of interpretationadded. Of all the specimens, 36.5% presented a low grade of restoration, 15% presented a medium grade, and 7.3% a high grade. Among the major damages recorded in the cynognathians specimens the following stand out: partial or total fragmentation of one of the zygomatic arches, total loss of the postdentary bones, fragmentation of the coronoid processes, and lithostatic deformation. The unidirectional deformation could not be completely eliminated in the fossils that presented it, beingthe only unresolved restorative problem. Detailing and documenting the totality of the restorative procedures allows establishing a traceability of the changes applied to the specimens, being extremely useful for researchers confronted with similar problems.Fil: Filippini, Florencia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaCoquina Press2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/269415Filippini, Florencia Soledad; Abdala, Nestor Fernando; Cassini, Guillermo Hernán; Techniques for digital restoration of cranial elements on three-dimensional surface models; Coquina Press; Palaeontologia Electronica; 2025; 6-2025; 1-171935-39521094-8074CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://palaeo-electronica.org/content/2025/5560-3d-surface-models-restoration-techniquesinfo:eu-repo/semantics/altIdentifier/doi/10.26879/1506info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:12:03Zoai:ri.conicet.gov.ar:11336/269415instacron: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 12:12:03.5CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Techniques for digital restoration of cranial elements on three-dimensional surface models
title Techniques for digital restoration of cranial elements on three-dimensional surface models
spellingShingle Techniques for digital restoration of cranial elements on three-dimensional surface models
Filippini, Florencia Soledad
RESTORATION
RETRODEFORMATION
3D MODELS
DIGITAL TECHNIQUES
title_short Techniques for digital restoration of cranial elements on three-dimensional surface models
title_full Techniques for digital restoration of cranial elements on three-dimensional surface models
title_fullStr Techniques for digital restoration of cranial elements on three-dimensional surface models
title_full_unstemmed Techniques for digital restoration of cranial elements on three-dimensional surface models
title_sort Techniques for digital restoration of cranial elements on three-dimensional surface models
dc.creator.none.fl_str_mv Filippini, Florencia Soledad
Abdala, Nestor Fernando
Cassini, Guillermo Hernán
author Filippini, Florencia Soledad
author_facet Filippini, Florencia Soledad
Abdala, Nestor Fernando
Cassini, Guillermo Hernán
author_role author
author2 Abdala, Nestor Fernando
Cassini, Guillermo Hernán
author2_role author
author
dc.subject.none.fl_str_mv RESTORATION
RETRODEFORMATION
3D MODELS
DIGITAL TECHNIQUES
topic RESTORATION
RETRODEFORMATION
3D MODELS
DIGITAL TECHNIQUES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Digital restoration is the process by which preservational or other types of damage are removed to recover the putative original morphology of fossil specimens. In the present work, three-dimensional (3D) surface models of skulls and mandibles of 32 cynognathians (Synapsida, Cynodontia) specimens from South America were digitally restored. The main restoration techniques used come from the literature and are adapted to the particular preservational problem. A classification into three restoration grades (low, medium and high) is proposed, taking into account the number of techniques used and the percentage of damage of the fossil. The higher the degree ofdamage, the greater the complexity of the restoration and the higher the level of interpretationadded. Of all the specimens, 36.5% presented a low grade of restoration, 15% presented a medium grade, and 7.3% a high grade. Among the major damages recorded in the cynognathians specimens the following stand out: partial or total fragmentation of one of the zygomatic arches, total loss of the postdentary bones, fragmentation of the coronoid processes, and lithostatic deformation. The unidirectional deformation could not be completely eliminated in the fossils that presented it, beingthe only unresolved restorative problem. Detailing and documenting the totality of the restorative procedures allows establishing a traceability of the changes applied to the specimens, being extremely useful for researchers confronted with similar problems.
Fil: Filippini, Florencia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Abdala, Nestor Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina
Fil: Cassini, Guillermo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
description Digital restoration is the process by which preservational or other types of damage are removed to recover the putative original morphology of fossil specimens. In the present work, three-dimensional (3D) surface models of skulls and mandibles of 32 cynognathians (Synapsida, Cynodontia) specimens from South America were digitally restored. The main restoration techniques used come from the literature and are adapted to the particular preservational problem. A classification into three restoration grades (low, medium and high) is proposed, taking into account the number of techniques used and the percentage of damage of the fossil. The higher the degree ofdamage, the greater the complexity of the restoration and the higher the level of interpretationadded. Of all the specimens, 36.5% presented a low grade of restoration, 15% presented a medium grade, and 7.3% a high grade. Among the major damages recorded in the cynognathians specimens the following stand out: partial or total fragmentation of one of the zygomatic arches, total loss of the postdentary bones, fragmentation of the coronoid processes, and lithostatic deformation. The unidirectional deformation could not be completely eliminated in the fossils that presented it, beingthe only unresolved restorative problem. Detailing and documenting the totality of the restorative procedures allows establishing a traceability of the changes applied to the specimens, being extremely useful for researchers confronted with similar problems.
publishDate 2025
dc.date.none.fl_str_mv 2025-06
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/11336/269415
Filippini, Florencia Soledad; Abdala, Nestor Fernando; Cassini, Guillermo Hernán; Techniques for digital restoration of cranial elements on three-dimensional surface models; Coquina Press; Palaeontologia Electronica; 2025; 6-2025; 1-17
1935-3952
1094-8074
CONICET Digital
CONICET
url http://hdl.handle.net/11336/269415
identifier_str_mv Filippini, Florencia Soledad; Abdala, Nestor Fernando; Cassini, Guillermo Hernán; Techniques for digital restoration of cranial elements on three-dimensional surface models; Coquina Press; Palaeontologia Electronica; 2025; 6-2025; 1-17
1935-3952
1094-8074
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://palaeo-electronica.org/content/2025/5560-3d-surface-models-restoration-techniques
info:eu-repo/semantics/altIdentifier/doi/10.26879/1506
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
application/pdf
dc.publisher.none.fl_str_mv Coquina Press
publisher.none.fl_str_mv Coquina Press
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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