Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover

Autores
Ortiz, Pablo Edmundo; García López, Daniel Alfredo; Babot, María Judith; Pardiñas, Ulises Francisco J.; Alonso Muruaga, Pablo Joaquin; Jayat, Jorge Pablo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Despite a century of paleontological work in Neogene sequences of northwestern Argentina there is still much to learn about the biotic diversity in this area during Pliocene times. We report a rich microvertebrate assemblage recovered from Late Pliocene deposits of Uquía Formation, Jujuy Province, northernmost Argentina. Taxa represented in the studied sample include members of Bufonidae (Amphibia: Anura), Iguanoidea (Reptilia: Squamata), Passeriformes (Aves), Argyrolagidae, Didelphidae, Caviidae, Ctenomyidae, Octodontidae, and Cricetidae (Mammalia). Taphonomic attributes indicate that the bone concentration was produced by owls. The remains were disposed highly concentrated suggesting that the assemblage would have been generated in a short lapse, indicating a low time-averaging, retaining the main ecological signals of the past living community. The studied assemblage is noteworthy because encompass at least four new genera of cricetid rodents, illustrating the oldest record in northwestern Argentina for this diverse family of mammals. In spite of clear taxonomic differences at specific and generic levels, the structure of the assemblage is ecologically comparable to modern small mammal communities, with a dominance of cricetids over marsupials and caviomorph rodents. Striking differences in taxonomic composition between the Uquian assemblage and the coeval record from central Argentina indicate biogeographical distinctions since the Late Pliocene. The new Uquian cricetids show that the early divergence times for phyllotine genera proposed by several authors can not be supported. The dominance of phyllotines in the assemblage as well as the record of Microcavia and an octodontid similar to Neophanomys allow inferring arid or semiarid paleoenvironment conditions, in a more or less open habitat. The studied assemblage reflects a noteworthy faunal turnover, which implies the establishment of cricetid rodents as the dominant group in the small mammal communities. This faunal change can be associated to increasing aridity during Late Pliocene worldwide.
Fil: Ortiz, Pablo Edmundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: García López, Daniel Alfredo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Paleozoología; Argentina
Fil: Babot, María Judith. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Alonso Muruaga, Pablo Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jayat, Jorge Pablo. Universidad Nacional de Tucumán. Instituto de Ecología Regional. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Ecología Regional; Argentina
Materia
Taphonomy
Uquía Formation
GABI
Paleoenvironments
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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CONICET Digital (CONICET)
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Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/236802
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals TurnoverOrtiz, Pablo EdmundoGarcía López, Daniel AlfredoBabot, María JudithPardiñas, Ulises Francisco J.Alonso Muruaga, Pablo JoaquinJayat, Jorge PabloTaphonomyUquía FormationGABIPaleoenvironmentshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Despite a century of paleontological work in Neogene sequences of northwestern Argentina there is still much to learn about the biotic diversity in this area during Pliocene times. We report a rich microvertebrate assemblage recovered from Late Pliocene deposits of Uquía Formation, Jujuy Province, northernmost Argentina. Taxa represented in the studied sample include members of Bufonidae (Amphibia: Anura), Iguanoidea (Reptilia: Squamata), Passeriformes (Aves), Argyrolagidae, Didelphidae, Caviidae, Ctenomyidae, Octodontidae, and Cricetidae (Mammalia). Taphonomic attributes indicate that the bone concentration was produced by owls. The remains were disposed highly concentrated suggesting that the assemblage would have been generated in a short lapse, indicating a low time-averaging, retaining the main ecological signals of the past living community. The studied assemblage is noteworthy because encompass at least four new genera of cricetid rodents, illustrating the oldest record in northwestern Argentina for this diverse family of mammals. In spite of clear taxonomic differences at specific and generic levels, the structure of the assemblage is ecologically comparable to modern small mammal communities, with a dominance of cricetids over marsupials and caviomorph rodents. Striking differences in taxonomic composition between the Uquian assemblage and the coeval record from central Argentina indicate biogeographical distinctions since the Late Pliocene. The new Uquian cricetids show that the early divergence times for phyllotine genera proposed by several authors can not be supported. The dominance of phyllotines in the assemblage as well as the record of Microcavia and an octodontid similar to Neophanomys allow inferring arid or semiarid paleoenvironment conditions, in a more or less open habitat. The studied assemblage reflects a noteworthy faunal turnover, which implies the establishment of cricetid rodents as the dominant group in the small mammal communities. This faunal change can be associated to increasing aridity during Late Pliocene worldwide.Fil: Ortiz, Pablo Edmundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: García López, Daniel Alfredo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Paleozoología; ArgentinaFil: Babot, María Judith. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Alonso Muruaga, Pablo Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Jayat, Jorge Pablo. Universidad Nacional de Tucumán. Instituto de Ecología Regional. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Ecología Regional; ArgentinaElsevier Science2012-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/236802Ortiz, Pablo Edmundo; García López, Daniel Alfredo; Babot, María Judith; Pardiñas, Ulises Francisco J.; Alonso Muruaga, Pablo Joaquin; et al.; Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 361-362; 7-2012; 21-370031-0182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0031018212004130info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2012.07.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:37Zoai:ri.conicet.gov.ar:11336/236802instacron: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:34982025-09-29 10:40:37.362CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
title Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
spellingShingle Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
Ortiz, Pablo Edmundo
Taphonomy
Uquía Formation
GABI
Paleoenvironments
title_short Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
title_full Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
title_fullStr Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
title_full_unstemmed Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
title_sort Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover
dc.creator.none.fl_str_mv Ortiz, Pablo Edmundo
García López, Daniel Alfredo
Babot, María Judith
Pardiñas, Ulises Francisco J.
Alonso Muruaga, Pablo Joaquin
Jayat, Jorge Pablo
author Ortiz, Pablo Edmundo
author_facet Ortiz, Pablo Edmundo
García López, Daniel Alfredo
Babot, María Judith
Pardiñas, Ulises Francisco J.
Alonso Muruaga, Pablo Joaquin
Jayat, Jorge Pablo
author_role author
author2 García López, Daniel Alfredo
Babot, María Judith
Pardiñas, Ulises Francisco J.
Alonso Muruaga, Pablo Joaquin
Jayat, Jorge Pablo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Taphonomy
Uquía Formation
GABI
Paleoenvironments
topic Taphonomy
Uquía Formation
GABI
Paleoenvironments
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Despite a century of paleontological work in Neogene sequences of northwestern Argentina there is still much to learn about the biotic diversity in this area during Pliocene times. We report a rich microvertebrate assemblage recovered from Late Pliocene deposits of Uquía Formation, Jujuy Province, northernmost Argentina. Taxa represented in the studied sample include members of Bufonidae (Amphibia: Anura), Iguanoidea (Reptilia: Squamata), Passeriformes (Aves), Argyrolagidae, Didelphidae, Caviidae, Ctenomyidae, Octodontidae, and Cricetidae (Mammalia). Taphonomic attributes indicate that the bone concentration was produced by owls. The remains were disposed highly concentrated suggesting that the assemblage would have been generated in a short lapse, indicating a low time-averaging, retaining the main ecological signals of the past living community. The studied assemblage is noteworthy because encompass at least four new genera of cricetid rodents, illustrating the oldest record in northwestern Argentina for this diverse family of mammals. In spite of clear taxonomic differences at specific and generic levels, the structure of the assemblage is ecologically comparable to modern small mammal communities, with a dominance of cricetids over marsupials and caviomorph rodents. Striking differences in taxonomic composition between the Uquian assemblage and the coeval record from central Argentina indicate biogeographical distinctions since the Late Pliocene. The new Uquian cricetids show that the early divergence times for phyllotine genera proposed by several authors can not be supported. The dominance of phyllotines in the assemblage as well as the record of Microcavia and an octodontid similar to Neophanomys allow inferring arid or semiarid paleoenvironment conditions, in a more or less open habitat. The studied assemblage reflects a noteworthy faunal turnover, which implies the establishment of cricetid rodents as the dominant group in the small mammal communities. This faunal change can be associated to increasing aridity during Late Pliocene worldwide.
Fil: Ortiz, Pablo Edmundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: García López, Daniel Alfredo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Paleozoología; Argentina
Fil: Babot, María Judith. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Alonso Muruaga, Pablo Joaquin. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jayat, Jorge Pablo. Universidad Nacional de Tucumán. Instituto de Ecología Regional. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Ecología Regional; Argentina
description Despite a century of paleontological work in Neogene sequences of northwestern Argentina there is still much to learn about the biotic diversity in this area during Pliocene times. We report a rich microvertebrate assemblage recovered from Late Pliocene deposits of Uquía Formation, Jujuy Province, northernmost Argentina. Taxa represented in the studied sample include members of Bufonidae (Amphibia: Anura), Iguanoidea (Reptilia: Squamata), Passeriformes (Aves), Argyrolagidae, Didelphidae, Caviidae, Ctenomyidae, Octodontidae, and Cricetidae (Mammalia). Taphonomic attributes indicate that the bone concentration was produced by owls. The remains were disposed highly concentrated suggesting that the assemblage would have been generated in a short lapse, indicating a low time-averaging, retaining the main ecological signals of the past living community. The studied assemblage is noteworthy because encompass at least four new genera of cricetid rodents, illustrating the oldest record in northwestern Argentina for this diverse family of mammals. In spite of clear taxonomic differences at specific and generic levels, the structure of the assemblage is ecologically comparable to modern small mammal communities, with a dominance of cricetids over marsupials and caviomorph rodents. Striking differences in taxonomic composition between the Uquian assemblage and the coeval record from central Argentina indicate biogeographical distinctions since the Late Pliocene. The new Uquian cricetids show that the early divergence times for phyllotine genera proposed by several authors can not be supported. The dominance of phyllotines in the assemblage as well as the record of Microcavia and an octodontid similar to Neophanomys allow inferring arid or semiarid paleoenvironment conditions, in a more or less open habitat. The studied assemblage reflects a noteworthy faunal turnover, which implies the establishment of cricetid rodents as the dominant group in the small mammal communities. This faunal change can be associated to increasing aridity during Late Pliocene worldwide.
publishDate 2012
dc.date.none.fl_str_mv 2012-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/236802
Ortiz, Pablo Edmundo; García López, Daniel Alfredo; Babot, María Judith; Pardiñas, Ulises Francisco J.; Alonso Muruaga, Pablo Joaquin; et al.; Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 361-362; 7-2012; 21-37
0031-0182
CONICET Digital
CONICET
url http://hdl.handle.net/11336/236802
identifier_str_mv Ortiz, Pablo Edmundo; García López, Daniel Alfredo; Babot, María Judith; Pardiñas, Ulises Francisco J.; Alonso Muruaga, Pablo Joaquin; et al.; Exceptional Late Pliocene Microvertebrate Diversity in Northwestern Argentina Reveals a Marked Small Mammals Turnover; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 361-362; 7-2012; 21-37
0031-0182
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2012.07.012
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rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame: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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