An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina

Autores
Brandoni, Diego; McDonald, H. Gregory
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this contribution is to describe two femora (MACN Pv 14148 and MACN Pv 14149 ) recovered from the Pleistocene of Santa Fe Province Argentina, provided a taxonomic assignation for them, and to discuss some taxonomic and biogeographical aspects of these finds. The general morphology of the femora more closely resembles the femur of Nothrotheriops (Xenarthra, Tardigrada, Nothrotheriidae) than any of the other known South American late Pleistocene nothrotheriine. Although a bit larger, both specimens are also more similar in size to those of Nothrotheriops shastensis and share several features with this species. Based on their morphology the femora could be referred to Nothrotheriops, a genus exclusively recorded from the Pleistocene of North America, making this the first record of the genus outside of its known geographical distribution. However an alternative hypothesis is also plausible: the assignation of MACN Pv 14148 and MACN Pv 14149 to other Nothrotheriinae, e.g., Nothropus, which was recorded from the same beds of the femora but was determined on a mandibular fragment. Pending the discovery of associated skeletal material we are left we three possible options which cannot be resolved at this time: 1) the femora may be from Nothropus since the femur for that genus is unknown; 2) they may go with N. carcaranensis which is not Nothropus but we are not sure to what genus the type mandible should be assigned; or 3) they may in fact be from Nothrotheriops and thus the first evidence for the genus in South America.
Fil: Brandoni, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. 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: McDonald, H. Gregory. National Park Service. Museum Management Program; Estados Unidos
Materia
Dentary
Femur
Ground Sloths
North America
Nothrotheriidae
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/39857
Acceder
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network_name_str CONICET Digital (CONICET)
spelling An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of ArgentinaBrandoni, DiegoMcDonald, H. GregoryDentaryFemurGround SlothsNorth AmericaNothrotheriidaeSouth Americahttps://purl.org/becyt/ford/6.1https://purl.org/becyt/ford/6The aim of this contribution is to describe two femora (MACN Pv 14148 and MACN Pv 14149 ) recovered from the Pleistocene of Santa Fe Province Argentina, provided a taxonomic assignation for them, and to discuss some taxonomic and biogeographical aspects of these finds. The general morphology of the femora more closely resembles the femur of Nothrotheriops (Xenarthra, Tardigrada, Nothrotheriidae) than any of the other known South American late Pleistocene nothrotheriine. Although a bit larger, both specimens are also more similar in size to those of Nothrotheriops shastensis and share several features with this species. Based on their morphology the femora could be referred to Nothrotheriops, a genus exclusively recorded from the Pleistocene of North America, making this the first record of the genus outside of its known geographical distribution. However an alternative hypothesis is also plausible: the assignation of MACN Pv 14148 and MACN Pv 14149 to other Nothrotheriinae, e.g., Nothropus, which was recorded from the same beds of the femora but was determined on a mandibular fragment. Pending the discovery of associated skeletal material we are left we three possible options which cannot be resolved at this time: 1) the femora may be from Nothropus since the femur for that genus is unknown; 2) they may go with N. carcaranensis which is not Nothropus but we are not sure to what genus the type mandible should be assigned; or 3) they may in fact be from Nothrotheriops and thus the first evidence for the genus in South America.Fil: Brandoni, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. 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: McDonald, H. Gregory. National Park Service. Museum Management Program; Estados UnidosAsociacion Paleontologica Argentina2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39857Brandoni, Diego; McDonald, H. Gregory; An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 2; 2-2015; 294-3020002-70141851-8044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.21.10.2014.2817info:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2817info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:00:51Zoai:ri.conicet.gov.ar:11336/39857instacron: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:34982025-10-22 12:00:51.893CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
title An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
spellingShingle An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
Brandoni, Diego
Dentary
Femur
Ground Sloths
North America
Nothrotheriidae
South America
title_short An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
title_full An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
title_fullStr An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
title_full_unstemmed An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
title_sort An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina
dc.creator.none.fl_str_mv Brandoni, Diego
McDonald, H. Gregory
author Brandoni, Diego
author_facet Brandoni, Diego
McDonald, H. Gregory
author_role author
author2 McDonald, H. Gregory
author2_role author
dc.subject.none.fl_str_mv Dentary
Femur
Ground Sloths
North America
Nothrotheriidae
South America
topic Dentary
Femur
Ground Sloths
North America
Nothrotheriidae
South America
purl_subject.fl_str_mv https://purl.org/becyt/ford/6.1
https://purl.org/becyt/ford/6
dc.description.none.fl_txt_mv The aim of this contribution is to describe two femora (MACN Pv 14148 and MACN Pv 14149 ) recovered from the Pleistocene of Santa Fe Province Argentina, provided a taxonomic assignation for them, and to discuss some taxonomic and biogeographical aspects of these finds. The general morphology of the femora more closely resembles the femur of Nothrotheriops (Xenarthra, Tardigrada, Nothrotheriidae) than any of the other known South American late Pleistocene nothrotheriine. Although a bit larger, both specimens are also more similar in size to those of Nothrotheriops shastensis and share several features with this species. Based on their morphology the femora could be referred to Nothrotheriops, a genus exclusively recorded from the Pleistocene of North America, making this the first record of the genus outside of its known geographical distribution. However an alternative hypothesis is also plausible: the assignation of MACN Pv 14148 and MACN Pv 14149 to other Nothrotheriinae, e.g., Nothropus, which was recorded from the same beds of the femora but was determined on a mandibular fragment. Pending the discovery of associated skeletal material we are left we three possible options which cannot be resolved at this time: 1) the femora may be from Nothropus since the femur for that genus is unknown; 2) they may go with N. carcaranensis which is not Nothropus but we are not sure to what genus the type mandible should be assigned; or 3) they may in fact be from Nothrotheriops and thus the first evidence for the genus in South America.
Fil: Brandoni, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina. 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: McDonald, H. Gregory. National Park Service. Museum Management Program; Estados Unidos
description The aim of this contribution is to describe two femora (MACN Pv 14148 and MACN Pv 14149 ) recovered from the Pleistocene of Santa Fe Province Argentina, provided a taxonomic assignation for them, and to discuss some taxonomic and biogeographical aspects of these finds. The general morphology of the femora more closely resembles the femur of Nothrotheriops (Xenarthra, Tardigrada, Nothrotheriidae) than any of the other known South American late Pleistocene nothrotheriine. Although a bit larger, both specimens are also more similar in size to those of Nothrotheriops shastensis and share several features with this species. Based on their morphology the femora could be referred to Nothrotheriops, a genus exclusively recorded from the Pleistocene of North America, making this the first record of the genus outside of its known geographical distribution. However an alternative hypothesis is also plausible: the assignation of MACN Pv 14148 and MACN Pv 14149 to other Nothrotheriinae, e.g., Nothropus, which was recorded from the same beds of the femora but was determined on a mandibular fragment. Pending the discovery of associated skeletal material we are left we three possible options which cannot be resolved at this time: 1) the femora may be from Nothropus since the femur for that genus is unknown; 2) they may go with N. carcaranensis which is not Nothropus but we are not sure to what genus the type mandible should be assigned; or 3) they may in fact be from Nothrotheriops and thus the first evidence for the genus in South America.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/39857
Brandoni, Diego; McDonald, H. Gregory; An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 2; 2-2015; 294-302
0002-7014
1851-8044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39857
identifier_str_mv Brandoni, Diego; McDonald, H. Gregory; An enigmatic nothrotheriinae (Xenarthra, Tardigrada) from the Pleistocene of Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 2; 2-2015; 294-302
0002-7014
1851-8044
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.21.10.2014.2817
info:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2817
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Asociacion Paleontologica Argentina
publisher.none.fl_str_mv Asociacion Paleontologica Argentina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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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score 12.982451

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