Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina

Autores
Meso, Jorge; Hendrickx, Christhofe; Baiano, Mattia Antonio; Canale, Juan Ignacio; Salgado, Leonardo; Díaz Martínez, Ignacio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Meso, Jorge. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Salgado, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Díaz Martínez, Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Hendrickx, Christhofe. Unidad Ejecutora Lillo, CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucu- mán 4000, Tucumán, Argentina
Fil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Canale, Juan Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here, we describe and identify twelve theropod shed teeth associated with a partially complete skeleton of a titanosaur sauropod from the Allen Formation (middle Campanian–lower Maastrichtian; Upper Cretaceous) of Paso Córdoba, Río Negro, Argentina. Using three methods, namely a cladistic analysis performed on a dentition-based data matrix, and a discriminant and cluster analyses conducted on a large dataset of theropod teeth measurements, we identify three dental morphotypes which are confidently referred to abelisaurid theropods. Whether the morphotypes represent different abelisaurid subclades or different positional entities within the jaw of the same abelisaurid species, is unknown. Such an identification, nevertheless, provides additional evidence of abelisaurids feeding on sauropod carcasses.This study highlights the importance of using combined qualitative and quantitative methodologies to identify isolated theropod teeth, especially those that can provide direct information on feeding ecology
-
Materia
Ciencias Exactas y Naturales
Dinosauria
Abelisauridae
shed teeth
morphotypes
Cretaceous
Patagonia
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/8595
Acceder
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, ArgentinaMeso, JorgeHendrickx, ChristhofeBaiano, Mattia AntonioCanale, Juan IgnacioSalgado, LeonardoDíaz Martínez, IgnacioCiencias Exactas y NaturalesDinosauriaAbelisauridaeshed teethmorphotypesCretaceousPatagoniaCiencias Exactas y NaturalesFil: Meso, Jorge. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Salgado, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Díaz Martínez, Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Hendrickx, Christhofe. Unidad Ejecutora Lillo, CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucu- mán 4000, Tucumán, ArgentinaFil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Canale, Juan Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here, we describe and identify twelve theropod shed teeth associated with a partially complete skeleton of a titanosaur sauropod from the Allen Formation (middle Campanian–lower Maastrichtian; Upper Cretaceous) of Paso Córdoba, Río Negro, Argentina. Using three methods, namely a cladistic analysis performed on a dentition-based data matrix, and a discriminant and cluster analyses conducted on a large dataset of theropod teeth measurements, we identify three dental morphotypes which are confidently referred to abelisaurid theropods. Whether the morphotypes represent different abelisaurid subclades or different positional entities within the jaw of the same abelisaurid species, is unknown. Such an identification, nevertheless, provides additional evidence of abelisaurids feeding on sauropod carcasses.This study highlights the importance of using combined qualitative and quantitative methodologies to identify isolated theropod teeth, especially those that can provide direct information on feeding ecology-Instituto de Paleobiología de la Academia de Ciencias de Polonia2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfMeso, J., Hendrickx, C., Baiano, M. A., Canale, J. I., Salgado, L., & Diaz-Martinez, I. (2021). Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina. Acta Palaeontologica Polonica; 66 (2); 409-4230567-7920https://yadda.icm.edu.pl/yadda/element/bwmeta1.element.agro-c271f0f1-9541-4416-9d9d-e977149f7588/c/Isolated_theropod.pdfhttp://rid.unrn.edu.ar/handle/20.500.12049/8595enghttps://www.app.pan.pl/home.html66 (2)Acta Palaeontologica Polonicainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-18T10:52:41Zoai:rid.unrn.edu.ar:20.500.12049/8595instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-18 10:52:41.287RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
title Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
spellingShingle Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Meso, Jorge
Ciencias Exactas y Naturales
Dinosauria
Abelisauridae
shed teeth
morphotypes
Cretaceous
Patagonia
Ciencias Exactas y Naturales
title_short Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
title_full Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
title_fullStr Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
title_full_unstemmed Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
title_sort Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
dc.creator.none.fl_str_mv Meso, Jorge
Hendrickx, Christhofe
Baiano, Mattia Antonio
Canale, Juan Ignacio
Salgado, Leonardo
Díaz Martínez, Ignacio
author Meso, Jorge
author_facet Meso, Jorge
Hendrickx, Christhofe
Baiano, Mattia Antonio
Canale, Juan Ignacio
Salgado, Leonardo
Díaz Martínez, Ignacio
author_role author
author2 Hendrickx, Christhofe
Baiano, Mattia Antonio
Canale, Juan Ignacio
Salgado, Leonardo
Díaz Martínez, Ignacio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
Dinosauria
Abelisauridae
shed teeth
morphotypes
Cretaceous
Patagonia
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
Dinosauria
Abelisauridae
shed teeth
morphotypes
Cretaceous
Patagonia
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Meso, Jorge. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Salgado, Leonardo. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Díaz Martínez, Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Hendrickx, Christhofe. Unidad Ejecutora Lillo, CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucu- mán 4000, Tucumán, Argentina
Fil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Canale, Juan Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here, we describe and identify twelve theropod shed teeth associated with a partially complete skeleton of a titanosaur sauropod from the Allen Formation (middle Campanian–lower Maastrichtian; Upper Cretaceous) of Paso Córdoba, Río Negro, Argentina. Using three methods, namely a cladistic analysis performed on a dentition-based data matrix, and a discriminant and cluster analyses conducted on a large dataset of theropod teeth measurements, we identify three dental morphotypes which are confidently referred to abelisaurid theropods. Whether the morphotypes represent different abelisaurid subclades or different positional entities within the jaw of the same abelisaurid species, is unknown. Such an identification, nevertheless, provides additional evidence of abelisaurids feeding on sauropod carcasses.This study highlights the importance of using combined qualitative and quantitative methodologies to identify isolated theropod teeth, especially those that can provide direct information on feeding ecology
-
description Fil: Meso, Jorge. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
publishDate 2021
dc.date.none.fl_str_mv 2021-03
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 Meso, J., Hendrickx, C., Baiano, M. A., Canale, J. I., Salgado, L., & Diaz-Martinez, I. (2021). Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina. Acta Palaeontologica Polonica; 66 (2); 409-423
0567-7920
https://yadda.icm.edu.pl/yadda/element/bwmeta1.element.agro-c271f0f1-9541-4416-9d9d-e977149f7588/c/Isolated_theropod.pdf
http://rid.unrn.edu.ar/handle/20.500.12049/8595
identifier_str_mv Meso, J., Hendrickx, C., Baiano, M. A., Canale, J. I., Salgado, L., & Diaz-Martinez, I. (2021). Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina. Acta Palaeontologica Polonica; 66 (2); 409-423
0567-7920
url https://yadda.icm.edu.pl/yadda/element/bwmeta1.element.agro-c271f0f1-9541-4416-9d9d-e977149f7588/c/Isolated_theropod.pdf
http://rid.unrn.edu.ar/handle/20.500.12049/8595
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.app.pan.pl/home.html
66 (2)
Acta Palaeontologica Polonica
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Instituto de Paleobiología de la Academia de Ciencias de Polonia
publisher.none.fl_str_mv Instituto de Paleobiología de la Academia de Ciencias de Polonia
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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score 12.490522

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