Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina

Autores
Zurita, Alfredo Eduardo; Camacho, María; Miño-Boilini, Ángel Ramón; Candela, Adriana Magdalena; Cuadrelli, Francisco; Krmpotic, Cecilia Mariana; Solís, Natalia
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Northwestern Argentina contains one of the most complete continental late Neogene (ca. 9e2.58 Ma) fossiliferous sequences in South America, especially in the current territories of the Catamarca, Tucumán and Jujuy provinces. More precisely in Jujuy Province several localities bearing mainly fossil mammals have been reported at the Quebrada de Humahuaca in the Uquía, Maimar a and Tilcara formations, in which the clade Xenarthra (Mammalia) is well-represented. In this scenario, the fossiliferous potential of other localities of Jujuy Province are less known, especially in those areas located at the northwest end of Argentina, bordering Bolivia in the Northern Puna. A new late Neogene fossiliferous locality near Calahoyo (3639 m.a.s.l), Jujuy Province, is here reported. The materials, belonging to Xenarthra, were exhumed from the base of the Tafna Formation which was deposited in a sedimentary basin by alluvial and/or fluvial currents, undergoing transitions of various lacustrine episodes. The taxa include the Tardigrada Pyramiodontherium bergi (Megatheriidae) and the Cingulata Eosclerocalyptus sp. (Glyptodontidae) and Macrochorobates chapalmalensis (Dasypodidae). From a biostratigraphic viewpoint, this assemblage suggests a Late Miocene-Pliocene age for the base of the Tafna Formation, and partially contradicts the supposed Plio-Pleistocene age of this unit. Finally, the new specimens here described indicate that Xenarthra were taxonomically and ecologically diverse during the late Neogene in the northwest end of Argentina, since they are represented by at least three main lineages (sloths, glyptodontids and armadillos).
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Diversity
Fossil mammals
Miocene
Pliocene
Puna
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/148022

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network_name_str SEDICI (UNLP)
spelling Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern ArgentinaZurita, Alfredo EduardoCamacho, MaríaMiño-Boilini, Ángel RamónCandela, Adriana MagdalenaCuadrelli, FranciscoKrmpotic, Cecilia MarianaSolís, NataliaCiencias NaturalesDiversityFossil mammalsMiocenePliocenePunaSouth AmericaNorthwestern Argentina contains one of the most complete continental late Neogene (ca. 9e2.58 Ma) fossiliferous sequences in South America, especially in the current territories of the Catamarca, Tucumán and Jujuy provinces. More precisely in Jujuy Province several localities bearing mainly fossil mammals have been reported at the Quebrada de Humahuaca in the Uquía, Maimar a and Tilcara formations, in which the clade Xenarthra (Mammalia) is well-represented. In this scenario, the fossiliferous potential of other localities of Jujuy Province are less known, especially in those areas located at the northwest end of Argentina, bordering Bolivia in the Northern Puna. A new late Neogene fossiliferous locality near Calahoyo (3639 m.a.s.l), Jujuy Province, is here reported. The materials, belonging to Xenarthra, were exhumed from the base of the Tafna Formation which was deposited in a sedimentary basin by alluvial and/or fluvial currents, undergoing transitions of various lacustrine episodes. The taxa include the Tardigrada <i>Pyramiodontherium bergi</i> (Megatheriidae) and the Cingulata <i>Eosclerocalyptus</i> sp. (Glyptodontidae) and <i>Macrochorobates chapalmalensis</i> (Dasypodidae). From a biostratigraphic viewpoint, this assemblage suggests a Late Miocene-Pliocene age for the base of the Tafna Formation, and partially contradicts the supposed Plio-Pleistocene age of this unit. Finally, the new specimens here described indicate that Xenarthra were taxonomically and ecologically diverse during the late Neogene in the northwest end of Argentina, since they are represented by at least three main lineages (sloths, glyptodontids and armadillos).Facultad de Ciencias Naturales y Museo2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf229-236http://sedici.unlp.edu.ar/handle/10915/148022enginfo:eu-repo/semantics/altIdentifier/issn/0895-9811info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2017.09.023info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:37:53Zoai:sedici.unlp.edu.ar:10915/148022Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:37:53.407SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
title Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
spellingShingle Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
Zurita, Alfredo Eduardo
Ciencias Naturales
Diversity
Fossil mammals
Miocene
Pliocene
Puna
South America
title_short Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
title_full Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
title_fullStr Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
title_full_unstemmed Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
title_sort Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
dc.creator.none.fl_str_mv Zurita, Alfredo Eduardo
Camacho, María
Miño-Boilini, Ángel Ramón
Candela, Adriana Magdalena
Cuadrelli, Francisco
Krmpotic, Cecilia Mariana
Solís, Natalia
author Zurita, Alfredo Eduardo
author_facet Zurita, Alfredo Eduardo
Camacho, María
Miño-Boilini, Ángel Ramón
Candela, Adriana Magdalena
Cuadrelli, Francisco
Krmpotic, Cecilia Mariana
Solís, Natalia
author_role author
author2 Camacho, María
Miño-Boilini, Ángel Ramón
Candela, Adriana Magdalena
Cuadrelli, Francisco
Krmpotic, Cecilia Mariana
Solís, Natalia
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Diversity
Fossil mammals
Miocene
Pliocene
Puna
South America
topic Ciencias Naturales
Diversity
Fossil mammals
Miocene
Pliocene
Puna
South America
dc.description.none.fl_txt_mv Northwestern Argentina contains one of the most complete continental late Neogene (ca. 9e2.58 Ma) fossiliferous sequences in South America, especially in the current territories of the Catamarca, Tucumán and Jujuy provinces. More precisely in Jujuy Province several localities bearing mainly fossil mammals have been reported at the Quebrada de Humahuaca in the Uquía, Maimar a and Tilcara formations, in which the clade Xenarthra (Mammalia) is well-represented. In this scenario, the fossiliferous potential of other localities of Jujuy Province are less known, especially in those areas located at the northwest end of Argentina, bordering Bolivia in the Northern Puna. A new late Neogene fossiliferous locality near Calahoyo (3639 m.a.s.l), Jujuy Province, is here reported. The materials, belonging to Xenarthra, were exhumed from the base of the Tafna Formation which was deposited in a sedimentary basin by alluvial and/or fluvial currents, undergoing transitions of various lacustrine episodes. The taxa include the Tardigrada <i>Pyramiodontherium bergi</i> (Megatheriidae) and the Cingulata <i>Eosclerocalyptus</i> sp. (Glyptodontidae) and <i>Macrochorobates chapalmalensis</i> (Dasypodidae). From a biostratigraphic viewpoint, this assemblage suggests a Late Miocene-Pliocene age for the base of the Tafna Formation, and partially contradicts the supposed Plio-Pleistocene age of this unit. Finally, the new specimens here described indicate that Xenarthra were taxonomically and ecologically diverse during the late Neogene in the northwest end of Argentina, since they are represented by at least three main lineages (sloths, glyptodontids and armadillos).
Facultad de Ciencias Naturales y Museo
description Northwestern Argentina contains one of the most complete continental late Neogene (ca. 9e2.58 Ma) fossiliferous sequences in South America, especially in the current territories of the Catamarca, Tucumán and Jujuy provinces. More precisely in Jujuy Province several localities bearing mainly fossil mammals have been reported at the Quebrada de Humahuaca in the Uquía, Maimar a and Tilcara formations, in which the clade Xenarthra (Mammalia) is well-represented. In this scenario, the fossiliferous potential of other localities of Jujuy Province are less known, especially in those areas located at the northwest end of Argentina, bordering Bolivia in the Northern Puna. A new late Neogene fossiliferous locality near Calahoyo (3639 m.a.s.l), Jujuy Province, is here reported. The materials, belonging to Xenarthra, were exhumed from the base of the Tafna Formation which was deposited in a sedimentary basin by alluvial and/or fluvial currents, undergoing transitions of various lacustrine episodes. The taxa include the Tardigrada <i>Pyramiodontherium bergi</i> (Megatheriidae) and the Cingulata <i>Eosclerocalyptus</i> sp. (Glyptodontidae) and <i>Macrochorobates chapalmalensis</i> (Dasypodidae). From a biostratigraphic viewpoint, this assemblage suggests a Late Miocene-Pliocene age for the base of the Tafna Formation, and partially contradicts the supposed Plio-Pleistocene age of this unit. Finally, the new specimens here described indicate that Xenarthra were taxonomically and ecologically diverse during the late Neogene in the northwest end of Argentina, since they are represented by at least three main lineages (sloths, glyptodontids and armadillos).
publishDate 2017
dc.date.none.fl_str_mv 2017-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
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