Tracing the origin of the panda's thumb

Autores
Abella, Juan; Pérez Ramos, Alejandro; Valenciano, Alberto; Alba, David M.; Ercoli, Marcos Darío; Hontecillas, Daniel; Montoya, Plinio; Morales, Jorge
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the relative development of the carnivoran radial sesamoids to untangle the evolution of this iconic structure. In the pandas (both giant and red), this ‘false thumb’ is known to perform a grasping role during bamboo feeding in both the red and giant pandas. An original locomotor role has been inferred for ailurids, but this remains to be ascertained for ursids. A large sample of radial sesamoids of Indarctos arctoides from the Miocene of Batallones-3 (Spain) indicates that this early ailuropodine bear displayed a relatively hypertrophied radial sesamoid, with a configuration more similar to that of the red panda and other carnivorans than to that of giant pandas. This false thumb is the first evidence of this feature in the Ursidae, which can be linked to a more herbivorous diet. Moreover, in the two extant pandas, the false thumb should not be interpreted as an anatomical convergence, but as an exaptive convergence regarding its use during the bamboo feeding, which changes the evolutionary view of this singular structure.
Fil: Abella, Juan. Universidad Estatal Península de Santa Elena; Ecuador. Universitat Autònoma de Barcelona; España
Fil: Pérez Ramos, Alejandro. Universidad de Málaga; España
Fil: Valenciano, Alberto. Consejo Superior de Investigaciones Científicas. Instituto de Geociencias; España. Universidad Complutense de Madrid; España
Fil: Alba, David M.. Universitat Autònoma de Barcelona; España
Fil: Ercoli, Marcos Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; Argentina
Fil: Hontecillas, Daniel. Museo Nacional de Ciencias Naturales; España
Fil: Montoya, Plinio. Universidad de Valencia; España
Fil: Morales, Jorge. Museo Nacional de Ciencias Naturales; España
Materia
Cerro de Los Batallones
Late Miocene
Radial Sesamoid
Carnivora
Ursidae
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:11336/41623
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Tracing the origin of the panda's thumbAbella, JuanPérez Ramos, AlejandroValenciano, AlbertoAlba, David M.Ercoli, Marcos DaríoHontecillas, DanielMontoya, PlinioMorales, JorgeCerro de Los BatallonesLate MioceneRadial SesamoidCarnivoraUrsidaehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We investigate the relative development of the carnivoran radial sesamoids to untangle the evolution of this iconic structure. In the pandas (both giant and red), this ‘false thumb’ is known to perform a grasping role during bamboo feeding in both the red and giant pandas. An original locomotor role has been inferred for ailurids, but this remains to be ascertained for ursids. A large sample of radial sesamoids of Indarctos arctoides from the Miocene of Batallones-3 (Spain) indicates that this early ailuropodine bear displayed a relatively hypertrophied radial sesamoid, with a configuration more similar to that of the red panda and other carnivorans than to that of giant pandas. This false thumb is the first evidence of this feature in the Ursidae, which can be linked to a more herbivorous diet. Moreover, in the two extant pandas, the false thumb should not be interpreted as an anatomical convergence, but as an exaptive convergence regarding its use during the bamboo feeding, which changes the evolutionary view of this singular structure.Fil: Abella, Juan. Universidad Estatal Península de Santa Elena; Ecuador. Universitat Autònoma de Barcelona; EspañaFil: Pérez Ramos, Alejandro. Universidad de Málaga; EspañaFil: Valenciano, Alberto. Consejo Superior de Investigaciones Científicas. Instituto de Geociencias; España. Universidad Complutense de Madrid; EspañaFil: Alba, David M.. Universitat Autònoma de Barcelona; EspañaFil: Ercoli, Marcos Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; ArgentinaFil: Hontecillas, Daniel. Museo Nacional de Ciencias Naturales; EspañaFil: Montoya, Plinio. Universidad de Valencia; EspañaFil: Morales, Jorge. Museo Nacional de Ciencias Naturales; EspañaSpringer2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41623Abella, Juan; Pérez Ramos, Alejandro; Valenciano, Alberto; Alba, David M.; Ercoli, Marcos Darío; et al.; Tracing the origin of the panda's thumb; Springer; Naturwissenschaften; 102; 6-2015; 1-130028-10421432-1904CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00114-015-1286-3info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00114-015-1286-3info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:17Zoai:ri.conicet.gov.ar:11336/41623instacron: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 09:57:17.497CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tracing the origin of the panda's thumb
title Tracing the origin of the panda's thumb
spellingShingle Tracing the origin of the panda's thumb
Abella, Juan
Cerro de Los Batallones
Late Miocene
Radial Sesamoid
Carnivora
Ursidae
title_short Tracing the origin of the panda's thumb
title_full Tracing the origin of the panda's thumb
title_fullStr Tracing the origin of the panda's thumb
title_full_unstemmed Tracing the origin of the panda's thumb
title_sort Tracing the origin of the panda's thumb
dc.creator.none.fl_str_mv Abella, Juan
Pérez Ramos, Alejandro
Valenciano, Alberto
Alba, David M.
Ercoli, Marcos Darío
Hontecillas, Daniel
Montoya, Plinio
Morales, Jorge
author Abella, Juan
author_facet Abella, Juan
Pérez Ramos, Alejandro
Valenciano, Alberto
Alba, David M.
Ercoli, Marcos Darío
Hontecillas, Daniel
Montoya, Plinio
Morales, Jorge
author_role author
author2 Pérez Ramos, Alejandro
Valenciano, Alberto
Alba, David M.
Ercoli, Marcos Darío
Hontecillas, Daniel
Montoya, Plinio
Morales, Jorge
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cerro de Los Batallones
Late Miocene
Radial Sesamoid
Carnivora
Ursidae
topic Cerro de Los Batallones
Late Miocene
Radial Sesamoid
Carnivora
Ursidae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigate the relative development of the carnivoran radial sesamoids to untangle the evolution of this iconic structure. In the pandas (both giant and red), this ‘false thumb’ is known to perform a grasping role during bamboo feeding in both the red and giant pandas. An original locomotor role has been inferred for ailurids, but this remains to be ascertained for ursids. A large sample of radial sesamoids of Indarctos arctoides from the Miocene of Batallones-3 (Spain) indicates that this early ailuropodine bear displayed a relatively hypertrophied radial sesamoid, with a configuration more similar to that of the red panda and other carnivorans than to that of giant pandas. This false thumb is the first evidence of this feature in the Ursidae, which can be linked to a more herbivorous diet. Moreover, in the two extant pandas, the false thumb should not be interpreted as an anatomical convergence, but as an exaptive convergence regarding its use during the bamboo feeding, which changes the evolutionary view of this singular structure.
Fil: Abella, Juan. Universidad Estatal Península de Santa Elena; Ecuador. Universitat Autònoma de Barcelona; España
Fil: Pérez Ramos, Alejandro. Universidad de Málaga; España
Fil: Valenciano, Alberto. Consejo Superior de Investigaciones Científicas. Instituto de Geociencias; España. Universidad Complutense de Madrid; España
Fil: Alba, David M.. Universitat Autònoma de Barcelona; España
Fil: Ercoli, Marcos Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; Argentina
Fil: Hontecillas, Daniel. Museo Nacional de Ciencias Naturales; España
Fil: Montoya, Plinio. Universidad de Valencia; España
Fil: Morales, Jorge. Museo Nacional de Ciencias Naturales; España
description We investigate the relative development of the carnivoran radial sesamoids to untangle the evolution of this iconic structure. In the pandas (both giant and red), this ‘false thumb’ is known to perform a grasping role during bamboo feeding in both the red and giant pandas. An original locomotor role has been inferred for ailurids, but this remains to be ascertained for ursids. A large sample of radial sesamoids of Indarctos arctoides from the Miocene of Batallones-3 (Spain) indicates that this early ailuropodine bear displayed a relatively hypertrophied radial sesamoid, with a configuration more similar to that of the red panda and other carnivorans than to that of giant pandas. This false thumb is the first evidence of this feature in the Ursidae, which can be linked to a more herbivorous diet. Moreover, in the two extant pandas, the false thumb should not be interpreted as an anatomical convergence, but as an exaptive convergence regarding its use during the bamboo feeding, which changes the evolutionary view of this singular structure.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/41623
Abella, Juan; Pérez Ramos, Alejandro; Valenciano, Alberto; Alba, David M.; Ercoli, Marcos Darío; et al.; Tracing the origin of the panda's thumb; Springer; Naturwissenschaften; 102; 6-2015; 1-13
0028-1042
1432-1904
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41623
identifier_str_mv Abella, Juan; Pérez Ramos, Alejandro; Valenciano, Alberto; Alba, David M.; Ercoli, Marcos Darío; et al.; Tracing the origin of the panda's thumb; Springer; Naturwissenschaften; 102; 6-2015; 1-13
0028-1042
1432-1904
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00114-015-1286-3
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00114-015-1286-3
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 Springer
publisher.none.fl_str_mv Springer
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 13.070432

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