New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America

Autores
Scanferla, Agustín; Bonini, Ricardo; Pomi, Lucas; Fucks, Enrique; Molinari, Alejandro
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión enviada
Descripción
Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources about the paleoecology of South American megafauna. However, there are no records of an accurately dated carnivore–herbivore taphocenosis. This paper presents preliminary results of a recent excavation at the margins of the Salado River, on sediments attributed to the Luján Formation (Late Pleistocene–Early Holocene). The fossiliferous strata consist of greenish brown sandy-clays deposited in a small paleopond environment that was filled by fluvial sediments, exhibiting abundant organic matter, gypsum and carbonate concretions. Fieldwork yielded an association of extinct large-sized mammals that include the horseHippidion principale,the saber-tooth catSmilodon populator(at least one adult and one juvenile associated specimen), a giant ground slothMegatherium americanum, and the glyptodontDoedicurus clavicaudatus. Four14C dates were performed on organic matter (12,100±10014CBP), a femur ofS. populator(13,400±20014CBP), and a cervical vertebra ofHippidion principale(12,860±12014CBP), and a pelvis ofD. clavicaudatus(12,380±19014CBP) situating the site within 12,500 and 13,500 years, approximately. Remarkably, some of the recovered specimens exhibit conspicuous bone modifications (furrows, pits, punctures, striations and crenulated margins) attributed to the activity of a medium-large carnivore. The association between bones of herbivore mammals with conspicuous modifications produced by a large carnivore, and the presence of cub and adult remains ofSmilodon, link this felid with at least part of the excavated association.
Materia
Geología
Late Pleistocene
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/5947

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network_name_str CIC Digital (CICBA)
spelling New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South AmericaScanferla, AgustínBonini, RicardoPomi, LucasFucks, EnriqueMolinari, AlejandroGeologíaLate PleistoceneLate Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources about the paleoecology of South American megafauna. However, there are no records of an accurately dated carnivore–herbivore taphocenosis. This paper presents preliminary results of a recent excavation at the margins of the Salado River, on sediments attributed to the Luján Formation (Late Pleistocene–Early Holocene). The fossiliferous strata consist of greenish brown sandy-clays deposited in a small paleopond environment that was filled by fluvial sediments, exhibiting abundant organic matter, gypsum and carbonate concretions. Fieldwork yielded an association of extinct large-sized mammals that include the horse<em>Hippidion principale,</em>the saber-tooth cat<em>Smilodon populator</em>(at least one adult and one juvenile associated specimen), a giant ground sloth<em>Megatherium americanum</em>, and the glyptodont<em>Doedicurus clavicaudatus</em>. Four14C dates were performed on organic matter (12,100±10014CBP), a femur of<em>S. populator</em>(13,400±20014CBP), and a cervical vertebra of<em>Hippidion principale</em>(12,860±12014CBP), and a pelvis of<em>D. clavicaudatus</em>(12,380±19014CBP) situating the site within 12,500 and 13,500 years, approximately. Remarkably, some of the recovered specimens exhibit conspicuous bone modifications (furrows, pits, punctures, striations and crenulated margins) attributed to the activity of a medium-large carnivore. The association between bones of herbivore mammals with conspicuous modifications produced by a large carnivore, and the presence of cub and adult remains of<em>Smilodon</em>, link this felid with at least part of the excavated association.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/5947enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2012.08.005the Pampas (southern South America)info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-04T09:43:22Zoai:digital.cic.gba.gob.ar:11746/5947Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-04 09:43:23.271CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
title New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
spellingShingle New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
Scanferla, Agustín
Geología
Late Pleistocene
title_short New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
title_full New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
title_fullStr New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
title_full_unstemmed New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
title_sort New Late Pleistocene megafaunal assemblage with well-supported chronology from the Pampas of southern South America
dc.creator.none.fl_str_mv Scanferla, Agustín
Bonini, Ricardo
Pomi, Lucas
Fucks, Enrique
Molinari, Alejandro
author Scanferla, Agustín
author_facet Scanferla, Agustín
Bonini, Ricardo
Pomi, Lucas
Fucks, Enrique
Molinari, Alejandro
author_role author
author2 Bonini, Ricardo
Pomi, Lucas
Fucks, Enrique
Molinari, Alejandro
author2_role author
author
author
author
dc.subject.none.fl_str_mv Geología
Late Pleistocene
topic Geología
Late Pleistocene
dc.description.none.fl_txt_mv Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources about the paleoecology of South American megafauna. However, there are no records of an accurately dated carnivore–herbivore taphocenosis. This paper presents preliminary results of a recent excavation at the margins of the Salado River, on sediments attributed to the Luján Formation (Late Pleistocene–Early Holocene). The fossiliferous strata consist of greenish brown sandy-clays deposited in a small paleopond environment that was filled by fluvial sediments, exhibiting abundant organic matter, gypsum and carbonate concretions. Fieldwork yielded an association of extinct large-sized mammals that include the horse<em>Hippidion principale,</em>the saber-tooth cat<em>Smilodon populator</em>(at least one adult and one juvenile associated specimen), a giant ground sloth<em>Megatherium americanum</em>, and the glyptodont<em>Doedicurus clavicaudatus</em>. Four14C dates were performed on organic matter (12,100±10014CBP), a femur of<em>S. populator</em>(13,400±20014CBP), and a cervical vertebra of<em>Hippidion principale</em>(12,860±12014CBP), and a pelvis of<em>D. clavicaudatus</em>(12,380±19014CBP) situating the site within 12,500 and 13,500 years, approximately. Remarkably, some of the recovered specimens exhibit conspicuous bone modifications (furrows, pits, punctures, striations and crenulated margins) attributed to the activity of a medium-large carnivore. The association between bones of herbivore mammals with conspicuous modifications produced by a large carnivore, and the presence of cub and adult remains of<em>Smilodon</em>, link this felid with at least part of the excavated association.
description Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources about the paleoecology of South American megafauna. However, there are no records of an accurately dated carnivore–herbivore taphocenosis. This paper presents preliminary results of a recent excavation at the margins of the Salado River, on sediments attributed to the Luján Formation (Late Pleistocene–Early Holocene). The fossiliferous strata consist of greenish brown sandy-clays deposited in a small paleopond environment that was filled by fluvial sediments, exhibiting abundant organic matter, gypsum and carbonate concretions. Fieldwork yielded an association of extinct large-sized mammals that include the horse<em>Hippidion principale,</em>the saber-tooth cat<em>Smilodon populator</em>(at least one adult and one juvenile associated specimen), a giant ground sloth<em>Megatherium americanum</em>, and the glyptodont<em>Doedicurus clavicaudatus</em>. Four14C dates were performed on organic matter (12,100±10014CBP), a femur of<em>S. populator</em>(13,400±20014CBP), and a cervical vertebra of<em>Hippidion principale</em>(12,860±12014CBP), and a pelvis of<em>D. clavicaudatus</em>(12,380±19014CBP) situating the site within 12,500 and 13,500 years, approximately. Remarkably, some of the recovered specimens exhibit conspicuous bone modifications (furrows, pits, punctures, striations and crenulated margins) attributed to the activity of a medium-large carnivore. The association between bones of herbivore mammals with conspicuous modifications produced by a large carnivore, and the presence of cub and adult remains of<em>Smilodon</em>, link this felid with at least part of the excavated association.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/5947
url https://digital.cic.gba.gob.ar/handle/11746/5947
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2012.08.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
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dc.coverage.none.fl_str_mv the Pampas (southern South America)
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
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