Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela

Autores
Carlini, Alfredo Armando; Brandoni, Diego; Sánchez, Rodolfo D.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We describe new remains of Urumaquia robusta CARLINI, BRANDONI & SÄNCHEZ, 2006, which significantly improve the knowledge of the species and allow a more precise discussion about the relationships with the rest of the South American Megatheriinae. The new remains (ulna, phalanx, femora, patella, tibia, astragalus, navicular, metatarsals IV–V) described here suggest close affinities of this taxon with the species of Pyramiodontherium and with Megatheriops rectidens, based on morphological similarities of the ulna (length, gracility), femur (general morphology, shape of the medial margin), and astragalus (angle between the discoidal and odontoid facets). In fact, the shape of femoral medial margin is a shared derived character amongUrumaquia, Pyramiodontherium and Megatheriops. However, and despite the increasing information concerning Tertiary species, their phylogenetic relationships are only partially understood.
Neue Funde von Urumaquia robusta Carlini, Brandoni & Sánchez, 2006 werden vorgestellt, die erheblich zum Verständnis der Art beitragen und eine präzisere Diskussion der Verwandtschaftsverhältnisse zu anderen Vertretern der südamerikanischen Megatheriinae erlauben. Das hierin beschriebene neue Material (Ulna, Phalange, Femura, Patella, Tibia, Astragalus, Navikulare, Metatarsalia IV–V) deutet auf nähere Verwandtschaft zu den Taxa Pyramiodontherium und Megatheriops rectidens hin. Dies wird unterstützt durch morphologische Ähnlichkeit der Ulna (Länge, Grazilität), des Femurs (generelle Morphologie, Form des medialen Randes) und des Astragalus (Winkel zwischen der Diskoidal- und Odontoidfacette). Tatsächlich handelt es sich bei der Ausprägung des medialen Femurrandes um eine Synapomorphie von Urumaquia, Pyramiodontherium und Megatheriops. Allerdings sind die phylogenetischen Verwandtschaftsverhältnisse, trotz Zunahme von Informationen über tertiäre Taxa, bisher nur teilweise verstanden.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Megatheriinae
Venezuela
Urumaquia robusta
Urumaco Formation
Postcranial bones
Postcranialelemente
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127306

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spelling Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, VenezuelaCarlini, Alfredo ArmandoBrandoni, DiegoSánchez, Rodolfo D.Ciencias NaturalesMegatheriinaeVenezuelaUrumaquia robustaUrumaco FormationPostcranial bonesPostcranialelementeWe describe new remains of Urumaquia robusta CARLINI, BRANDONI & SÄNCHEZ, 2006, which significantly improve the knowledge of the species and allow a more precise discussion about the relationships with the rest of the South American Megatheriinae. The new remains (ulna, phalanx, femora, patella, tibia, astragalus, navicular, metatarsals IV–V) described here suggest close affinities of this taxon with the species of Pyramiodontherium and with Megatheriops rectidens, based on morphological similarities of the ulna (length, gracility), femur (general morphology, shape of the medial margin), and astragalus (angle between the discoidal and odontoid facets). In fact, the shape of femoral medial margin is a shared derived character amongUrumaquia, Pyramiodontherium and Megatheriops. However, and despite the increasing information concerning Tertiary species, their phylogenetic relationships are only partially understood.Neue Funde von Urumaquia robusta Carlini, Brandoni & Sánchez, 2006 werden vorgestellt, die erheblich zum Verständnis der Art beitragen und eine präzisere Diskussion der Verwandtschaftsverhältnisse zu anderen Vertretern der südamerikanischen Megatheriinae erlauben. Das hierin beschriebene neue Material (Ulna, Phalange, Femura, Patella, Tibia, Astragalus, Navikulare, Metatarsalia IV–V) deutet auf nähere Verwandtschaft zu den Taxa Pyramiodontherium und Megatheriops rectidens hin. Dies wird unterstützt durch morphologische Ähnlichkeit der Ulna (Länge, Grazilität), des Femurs (generelle Morphologie, Form des medialen Randes) und des Astragalus (Winkel zwischen der Diskoidal- und Odontoidfacette). Tatsächlich handelt es sich bei der Ausprägung des medialen Femurrandes um eine Synapomorphie von Urumaquia, Pyramiodontherium und Megatheriops. Allerdings sind die phylogenetischen Verwandtschaftsverhältnisse, trotz Zunahme von Informationen über tertiäre Taxa, bisher nur teilweise verstanden.Facultad de Ciencias Naturales y Museo2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf153-162http://sedici.unlp.edu.ar/handle/10915/127306enginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FBF02988406info:eu-repo/semantics/altIdentifier/issn/0031-0220info:eu-repo/semantics/altIdentifier/issn/1867-6812info:eu-repo/semantics/altIdentifier/doi/10.1007/bf02988406info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:43Zoai:sedici.unlp.edu.ar:10915/127306Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:43.955SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
title Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
spellingShingle Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
Carlini, Alfredo Armando
Ciencias Naturales
Megatheriinae
Venezuela
Urumaquia robusta
Urumaco Formation
Postcranial bones
Postcranialelemente
title_short Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
title_full Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
title_fullStr Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
title_full_unstemmed Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
title_sort Additions to the knowledge of <i>Urumaquia robusta</i> (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falcön, Venezuela
dc.creator.none.fl_str_mv Carlini, Alfredo Armando
Brandoni, Diego
Sánchez, Rodolfo D.
author Carlini, Alfredo Armando
author_facet Carlini, Alfredo Armando
Brandoni, Diego
Sánchez, Rodolfo D.
author_role author
author2 Brandoni, Diego
Sánchez, Rodolfo D.
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Megatheriinae
Venezuela
Urumaquia robusta
Urumaco Formation
Postcranial bones
Postcranialelemente
topic Ciencias Naturales
Megatheriinae
Venezuela
Urumaquia robusta
Urumaco Formation
Postcranial bones
Postcranialelemente
dc.description.none.fl_txt_mv We describe new remains of Urumaquia robusta CARLINI, BRANDONI & SÄNCHEZ, 2006, which significantly improve the knowledge of the species and allow a more precise discussion about the relationships with the rest of the South American Megatheriinae. The new remains (ulna, phalanx, femora, patella, tibia, astragalus, navicular, metatarsals IV–V) described here suggest close affinities of this taxon with the species of Pyramiodontherium and with Megatheriops rectidens, based on morphological similarities of the ulna (length, gracility), femur (general morphology, shape of the medial margin), and astragalus (angle between the discoidal and odontoid facets). In fact, the shape of femoral medial margin is a shared derived character amongUrumaquia, Pyramiodontherium and Megatheriops. However, and despite the increasing information concerning Tertiary species, their phylogenetic relationships are only partially understood.
Neue Funde von Urumaquia robusta Carlini, Brandoni & Sánchez, 2006 werden vorgestellt, die erheblich zum Verständnis der Art beitragen und eine präzisere Diskussion der Verwandtschaftsverhältnisse zu anderen Vertretern der südamerikanischen Megatheriinae erlauben. Das hierin beschriebene neue Material (Ulna, Phalange, Femura, Patella, Tibia, Astragalus, Navikulare, Metatarsalia IV–V) deutet auf nähere Verwandtschaft zu den Taxa Pyramiodontherium und Megatheriops rectidens hin. Dies wird unterstützt durch morphologische Ähnlichkeit der Ulna (Länge, Grazilität), des Femurs (generelle Morphologie, Form des medialen Randes) und des Astragalus (Winkel zwischen der Diskoidal- und Odontoidfacette). Tatsächlich handelt es sich bei der Ausprägung des medialen Femurrandes um eine Synapomorphie von Urumaquia, Pyramiodontherium und Megatheriops. Allerdings sind die phylogenetischen Verwandtschaftsverhältnisse, trotz Zunahme von Informationen über tertiäre Taxa, bisher nur teilweise verstanden.
Facultad de Ciencias Naturales y Museo
description We describe new remains of Urumaquia robusta CARLINI, BRANDONI & SÄNCHEZ, 2006, which significantly improve the knowledge of the species and allow a more precise discussion about the relationships with the rest of the South American Megatheriinae. The new remains (ulna, phalanx, femora, patella, tibia, astragalus, navicular, metatarsals IV–V) described here suggest close affinities of this taxon with the species of Pyramiodontherium and with Megatheriops rectidens, based on morphological similarities of the ulna (length, gracility), femur (general morphology, shape of the medial margin), and astragalus (angle between the discoidal and odontoid facets). In fact, the shape of femoral medial margin is a shared derived character amongUrumaquia, Pyramiodontherium and Megatheriops. However, and despite the increasing information concerning Tertiary species, their phylogenetic relationships are only partially understood.
publishDate 2008
dc.date.none.fl_str_mv 2008
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info:eu-repo/semantics/publishedVersion
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info:eu-repo/semantics/altIdentifier/issn/1867-6812
info:eu-repo/semantics/altIdentifier/doi/10.1007/bf02988406
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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