First unambiguous evidence of Multituberculata from the Late Cretaceous of South America

Autores
Gelfo, Javier Nicolás; Goin, Francisco Javier; Vega, Nahuel
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report a left upper first molar of a multituberculate mammal, from the Upper Cretaceous La Colonia Formation, Chubut Province, Argentina, which is here assigned to Notopolytheles joelis gen. et sp. nov. (Cimolodonta,?Neoplagiaulacidae). Multituberculates have been previously reported from Gondwanan land masses, but to date, only records from Australia, Madagascar, and India have been taxonomically undisputed. In South America, all previous assignments were debated or later referred to Gondwanatheria. These records include isolated molars attributed to Ferugliotheriidae and Argentodites coloniensis, only known from a plagiaulacoid premolar and originally assigned to the ?Cimolodonta. Since no molar with definitive multituberculate features could ever be found in the Upper Cretaceous of Patagonia, A. coloniensis was considered a junior synonym of the ferugliotheriid Ferugliotherium windhauseni. Notopolytheles joelis gen. et sp. nov. displays a typical multituberculate molar configuration of three rows of tetrahedral cups, with a cusp formula of 7B:8M:4L similar to Neoplagiaulacidae. The lower position of the buccal cusp row supported by a single large labial root suggest a high level of endemism. This finding provides strong and renewed support for the hypothesis that ferugliotheriids lack a plagiaulacoid p4 and that Argentodites coloniensis is indeed a multituberculate.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
South America
Patagonia
La Colonia Formation
Late Cretaceous
Multituberculata
Gondwanatheria
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/193515
Acceder
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spelling First unambiguous evidence of Multituberculata from the Late Cretaceous of South AmericaGelfo, Javier NicolásGoin, Francisco JavierVega, NahuelCiencias NaturalesSouth AmericaPatagoniaLa Colonia FormationLate CretaceousMultituberculataGondwanatheriaWe report a left upper first molar of a multituberculate mammal, from the Upper Cretaceous La Colonia Formation, Chubut Province, Argentina, which is here assigned to Notopolytheles joelis gen. et sp. nov. (Cimolodonta,?Neoplagiaulacidae). Multituberculates have been previously reported from Gondwanan land masses, but to date, only records from Australia, Madagascar, and India have been taxonomically undisputed. In South America, all previous assignments were debated or later referred to Gondwanatheria. These records include isolated molars attributed to Ferugliotheriidae and Argentodites coloniensis, only known from a plagiaulacoid premolar and originally assigned to the ?Cimolodonta. Since no molar with definitive multituberculate features could ever be found in the Upper Cretaceous of Patagonia, A. coloniensis was considered a junior synonym of the ferugliotheriid Ferugliotherium windhauseni. Notopolytheles joelis gen. et sp. nov. displays a typical multituberculate molar configuration of three rows of tetrahedral cups, with a cusp formula of 7B:8M:4L similar to Neoplagiaulacidae. The lower position of the buccal cusp row supported by a single large labial root suggest a high level of endemism. This finding provides strong and renewed support for the hypothesis that ferugliotheriids lack a plagiaulacoid p4 and that Argentodites coloniensis is indeed a multituberculate.Facultad de Ciencias Naturales y Museo2025-11-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://doi.org/10.1038/s41598-025-25255-2http://sedici.unlp.edu.ar/handle/10915/193515enginfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-025-25255-2.pdfinfo:eu-repo/semantics/altIdentifier/issn/2045-2322info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2026-05-13T12:59:57Zoai:sedici.unlp.edu.ar:10915/193515Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292026-05-13 12:59:58.193SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
title First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
spellingShingle First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
Gelfo, Javier Nicolás
Ciencias Naturales
South America
Patagonia
La Colonia Formation
Late Cretaceous
Multituberculata
Gondwanatheria
title_short First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
title_full First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
title_fullStr First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
title_full_unstemmed First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
title_sort First unambiguous evidence of Multituberculata from the Late Cretaceous of South America
dc.creator.none.fl_str_mv Gelfo, Javier Nicolás
Goin, Francisco Javier
Vega, Nahuel
author Gelfo, Javier Nicolás
author_facet Gelfo, Javier Nicolás
Goin, Francisco Javier
Vega, Nahuel
author_role author
author2 Goin, Francisco Javier
Vega, Nahuel
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
South America
Patagonia
La Colonia Formation
Late Cretaceous
Multituberculata
Gondwanatheria
topic Ciencias Naturales
South America
Patagonia
La Colonia Formation
Late Cretaceous
Multituberculata
Gondwanatheria
dc.description.none.fl_txt_mv We report a left upper first molar of a multituberculate mammal, from the Upper Cretaceous La Colonia Formation, Chubut Province, Argentina, which is here assigned to Notopolytheles joelis gen. et sp. nov. (Cimolodonta,?Neoplagiaulacidae). Multituberculates have been previously reported from Gondwanan land masses, but to date, only records from Australia, Madagascar, and India have been taxonomically undisputed. In South America, all previous assignments were debated or later referred to Gondwanatheria. These records include isolated molars attributed to Ferugliotheriidae and Argentodites coloniensis, only known from a plagiaulacoid premolar and originally assigned to the ?Cimolodonta. Since no molar with definitive multituberculate features could ever be found in the Upper Cretaceous of Patagonia, A. coloniensis was considered a junior synonym of the ferugliotheriid Ferugliotherium windhauseni. Notopolytheles joelis gen. et sp. nov. displays a typical multituberculate molar configuration of three rows of tetrahedral cups, with a cusp formula of 7B:8M:4L similar to Neoplagiaulacidae. The lower position of the buccal cusp row supported by a single large labial root suggest a high level of endemism. This finding provides strong and renewed support for the hypothesis that ferugliotheriids lack a plagiaulacoid p4 and that Argentodites coloniensis is indeed a multituberculate.
Facultad de Ciencias Naturales y Museo
description We report a left upper first molar of a multituberculate mammal, from the Upper Cretaceous La Colonia Formation, Chubut Province, Argentina, which is here assigned to Notopolytheles joelis gen. et sp. nov. (Cimolodonta,?Neoplagiaulacidae). Multituberculates have been previously reported from Gondwanan land masses, but to date, only records from Australia, Madagascar, and India have been taxonomically undisputed. In South America, all previous assignments were debated or later referred to Gondwanatheria. These records include isolated molars attributed to Ferugliotheriidae and Argentodites coloniensis, only known from a plagiaulacoid premolar and originally assigned to the ?Cimolodonta. Since no molar with definitive multituberculate features could ever be found in the Upper Cretaceous of Patagonia, A. coloniensis was considered a junior synonym of the ferugliotheriid Ferugliotherium windhauseni. Notopolytheles joelis gen. et sp. nov. displays a typical multituberculate molar configuration of three rows of tetrahedral cups, with a cusp formula of 7B:8M:4L similar to Neoplagiaulacidae. The lower position of the buccal cusp row supported by a single large labial root suggest a high level of endemism. This finding provides strong and renewed support for the hypothesis that ferugliotheriids lack a plagiaulacoid p4 and that Argentodites coloniensis is indeed a multituberculate.
publishDate 2025
dc.date.none.fl_str_mv 2025-11-24
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1038/s41598-025-25255-2
http://sedici.unlp.edu.ar/handle/10915/193515
url https://doi.org/10.1038/s41598-025-25255-2
http://sedici.unlp.edu.ar/handle/10915/193515
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-025-25255-2.pdf
info:eu-repo/semantics/altIdentifier/issn/2045-2322
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
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