Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina

Autores
Olivieri, Shirley Fabiela; Martini, Gastón Andres; Brandoni, Diego; González Ruiz, Laureano Raúl
Año de publicación
2025
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The diversity of glyptodonts has been overestimated because many genera and species have beenrecognized on characters from osteoderms and carapaces without considering the variation of different regions of the carapace or the ontogenetic variation of the osteoderms. The present contribution aims to describe juvenile glyptodonts specimens that were collected from the fossiliferous locality Cerro Zeballos of the Collón Curá Formation, northwestern Chubut Province, Argentina. At this locality the only previously recorded glyptodont is Paraeucinepeltus raposeirasi, mainly characterized for a central conical elevation in the cephalic shield osteoderms. Specimens studied are housed at the Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB) from the Universidad Nacional de la Patagonia "San Juan Bosco". LIEB-PV 6070 is represented by 65 osteoderms of the dorsal carapace, two vertebrae, eight rib fragments, right tibia, left petrosal, and occipital fragment; LIEB-PV 6175 is represented by 125 osteoderms from the dorsal and caudal carapace; LIEB-PV 5348 is represented by one osteoderm fragment of the cephalic shield; LIEB-PV 6072 is represented by one osteoderm of the cephalic shield; and LIEB-PV 6059 is represented by one cervical tube fragment and five osteoderms of the dorsal carapace. The absence of central and peripheral figures of the osteoderms, the presence a punctuated exposed surface and smooth lateral surfaces enables the distinction of an early juvenile stage (LIEB-PV 6070); while the presence of poorly marked central and peripheral figures of the osteoderms, a slightly smooth exposed surface and generally developed sulci suggest a late juvenile stage (LIEB-PV 6175, LIEB-PV 6059, LIEB-PV 5348, and LIEB-PV 6072). All specimens are assigned to cf. Paraeucinepeltus raposeirasi. Although, the juveniles do not yet present completely developed adult characters, they were found associated with adult specimens (e.g., LIEB-PV 6064 and LIEB-PV 6042) of the mentioned species. In addition, two specimens (LIEB-PV 5348 and LIEB-PV 6072) have the central conical elevation of the osteoderms of the cephalic shield. The recognition and description of juvenile specimens of glyptodonts have the potential to contribute with information about ontogenetic variations in osteoderms, skulls, and postcranial skeleton, avoiding synonyms based on juvenile specimens.
Fil: Olivieri, Shirley Fabiela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Martini, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Brandoni, Diego. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: González Ruiz, Laureano Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Reunión de Comunicaciones de la Asociación Paleontológica Argentina
San Rafael
Argentina
Asociación Paleontológica Argentina
Materia
Collón Curá Formation
Juvenile glyptodonts
Osteoderms
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/266601
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/266601
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, ArgentinaOlivieri, Shirley FabielaMartini, Gastón AndresBrandoni, DiegoGonzález Ruiz, Laureano RaúlCollón Curá FormationJuvenile glyptodontsOsteodermshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The diversity of glyptodonts has been overestimated because many genera and species have beenrecognized on characters from osteoderms and carapaces without considering the variation of different regions of the carapace or the ontogenetic variation of the osteoderms. The present contribution aims to describe juvenile glyptodonts specimens that were collected from the fossiliferous locality Cerro Zeballos of the Collón Curá Formation, northwestern Chubut Province, Argentina. At this locality the only previously recorded glyptodont is Paraeucinepeltus raposeirasi, mainly characterized for a central conical elevation in the cephalic shield osteoderms. Specimens studied are housed at the Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB) from the Universidad Nacional de la Patagonia "San Juan Bosco". LIEB-PV 6070 is represented by 65 osteoderms of the dorsal carapace, two vertebrae, eight rib fragments, right tibia, left petrosal, and occipital fragment; LIEB-PV 6175 is represented by 125 osteoderms from the dorsal and caudal carapace; LIEB-PV 5348 is represented by one osteoderm fragment of the cephalic shield; LIEB-PV 6072 is represented by one osteoderm of the cephalic shield; and LIEB-PV 6059 is represented by one cervical tube fragment and five osteoderms of the dorsal carapace. The absence of central and peripheral figures of the osteoderms, the presence a punctuated exposed surface and smooth lateral surfaces enables the distinction of an early juvenile stage (LIEB-PV 6070); while the presence of poorly marked central and peripheral figures of the osteoderms, a slightly smooth exposed surface and generally developed sulci suggest a late juvenile stage (LIEB-PV 6175, LIEB-PV 6059, LIEB-PV 5348, and LIEB-PV 6072). All specimens are assigned to cf. Paraeucinepeltus raposeirasi. Although, the juveniles do not yet present completely developed adult characters, they were found associated with adult specimens (e.g., LIEB-PV 6064 and LIEB-PV 6042) of the mentioned species. In addition, two specimens (LIEB-PV 5348 and LIEB-PV 6072) have the central conical elevation of the osteoderms of the cephalic shield. The recognition and description of juvenile specimens of glyptodonts have the potential to contribute with information about ontogenetic variations in osteoderms, skulls, and postcranial skeleton, avoiding synonyms based on juvenile specimens.Fil: Olivieri, Shirley Fabiela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Martini, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Brandoni, Diego. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaFil: González Ruiz, Laureano Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaReunión de Comunicaciones de la Asociación Paleontológica ArgentinaSan RafaelArgentinaAsociación Paleontológica ArgentinaAsociación Paleontológica Argentina2025info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/266601Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; San Rafael; Argentina; 2024; 153-1532469-0228CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://peapaleontologica.org.ar/index.php/peapa/article/view/544Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:52:51Zoai:ri.conicet.gov.ar:11336/266601instacron: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:34982025-10-15 14:52:51.661CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
title Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
spellingShingle Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
Olivieri, Shirley Fabiela
Collón Curá Formation
Juvenile glyptodonts
Osteoderms
title_short Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
title_full Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
title_fullStr Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
title_full_unstemmed Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
title_sort Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina
dc.creator.none.fl_str_mv Olivieri, Shirley Fabiela
Martini, Gastón Andres
Brandoni, Diego
González Ruiz, Laureano Raúl
author Olivieri, Shirley Fabiela
author_facet Olivieri, Shirley Fabiela
Martini, Gastón Andres
Brandoni, Diego
González Ruiz, Laureano Raúl
author_role author
author2 Martini, Gastón Andres
Brandoni, Diego
González Ruiz, Laureano Raúl
author2_role author
author
author
dc.subject.none.fl_str_mv Collón Curá Formation
Juvenile glyptodonts
Osteoderms
topic Collón Curá Formation
Juvenile glyptodonts
Osteoderms
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The diversity of glyptodonts has been overestimated because many genera and species have beenrecognized on characters from osteoderms and carapaces without considering the variation of different regions of the carapace or the ontogenetic variation of the osteoderms. The present contribution aims to describe juvenile glyptodonts specimens that were collected from the fossiliferous locality Cerro Zeballos of the Collón Curá Formation, northwestern Chubut Province, Argentina. At this locality the only previously recorded glyptodont is Paraeucinepeltus raposeirasi, mainly characterized for a central conical elevation in the cephalic shield osteoderms. Specimens studied are housed at the Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB) from the Universidad Nacional de la Patagonia "San Juan Bosco". LIEB-PV 6070 is represented by 65 osteoderms of the dorsal carapace, two vertebrae, eight rib fragments, right tibia, left petrosal, and occipital fragment; LIEB-PV 6175 is represented by 125 osteoderms from the dorsal and caudal carapace; LIEB-PV 5348 is represented by one osteoderm fragment of the cephalic shield; LIEB-PV 6072 is represented by one osteoderm of the cephalic shield; and LIEB-PV 6059 is represented by one cervical tube fragment and five osteoderms of the dorsal carapace. The absence of central and peripheral figures of the osteoderms, the presence a punctuated exposed surface and smooth lateral surfaces enables the distinction of an early juvenile stage (LIEB-PV 6070); while the presence of poorly marked central and peripheral figures of the osteoderms, a slightly smooth exposed surface and generally developed sulci suggest a late juvenile stage (LIEB-PV 6175, LIEB-PV 6059, LIEB-PV 5348, and LIEB-PV 6072). All specimens are assigned to cf. Paraeucinepeltus raposeirasi. Although, the juveniles do not yet present completely developed adult characters, they were found associated with adult specimens (e.g., LIEB-PV 6064 and LIEB-PV 6042) of the mentioned species. In addition, two specimens (LIEB-PV 5348 and LIEB-PV 6072) have the central conical elevation of the osteoderms of the cephalic shield. The recognition and description of juvenile specimens of glyptodonts have the potential to contribute with information about ontogenetic variations in osteoderms, skulls, and postcranial skeleton, avoiding synonyms based on juvenile specimens.
Fil: Olivieri, Shirley Fabiela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Martini, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Brandoni, Diego. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: González Ruiz, Laureano Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Reunión de Comunicaciones de la Asociación Paleontológica Argentina
San Rafael
Argentina
Asociación Paleontológica Argentina
description The diversity of glyptodonts has been overestimated because many genera and species have beenrecognized on characters from osteoderms and carapaces without considering the variation of different regions of the carapace or the ontogenetic variation of the osteoderms. The present contribution aims to describe juvenile glyptodonts specimens that were collected from the fossiliferous locality Cerro Zeballos of the Collón Curá Formation, northwestern Chubut Province, Argentina. At this locality the only previously recorded glyptodont is Paraeucinepeltus raposeirasi, mainly characterized for a central conical elevation in the cephalic shield osteoderms. Specimens studied are housed at the Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB) from the Universidad Nacional de la Patagonia "San Juan Bosco". LIEB-PV 6070 is represented by 65 osteoderms of the dorsal carapace, two vertebrae, eight rib fragments, right tibia, left petrosal, and occipital fragment; LIEB-PV 6175 is represented by 125 osteoderms from the dorsal and caudal carapace; LIEB-PV 5348 is represented by one osteoderm fragment of the cephalic shield; LIEB-PV 6072 is represented by one osteoderm of the cephalic shield; and LIEB-PV 6059 is represented by one cervical tube fragment and five osteoderms of the dorsal carapace. The absence of central and peripheral figures of the osteoderms, the presence a punctuated exposed surface and smooth lateral surfaces enables the distinction of an early juvenile stage (LIEB-PV 6070); while the presence of poorly marked central and peripheral figures of the osteoderms, a slightly smooth exposed surface and generally developed sulci suggest a late juvenile stage (LIEB-PV 6175, LIEB-PV 6059, LIEB-PV 5348, and LIEB-PV 6072). All specimens are assigned to cf. Paraeucinepeltus raposeirasi. Although, the juveniles do not yet present completely developed adult characters, they were found associated with adult specimens (e.g., LIEB-PV 6064 and LIEB-PV 6042) of the mentioned species. In addition, two specimens (LIEB-PV 5348 and LIEB-PV 6072) have the central conical elevation of the osteoderms of the cephalic shield. The recognition and description of juvenile specimens of glyptodonts have the potential to contribute with information about ontogenetic variations in osteoderms, skulls, and postcranial skeleton, avoiding synonyms based on juvenile specimens.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/266601
Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; San Rafael; Argentina; 2024; 153-153
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/266601
identifier_str_mv Juvenile glyptodonts (Mammalia, Xenarthra, Cingulata) from Cerro Zeballos (Collón Curá Formation, Middle Miocene), Chubut, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; San Rafael; Argentina; 2024; 153-153
2469-0228
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://peapaleontologica.org.ar/index.php/peapa/article/view/544
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nd/2.5/ar/
eu_rights_str_mv openAccess
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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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