Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)

The Glyptodontidae (Mammalia, Xenarthra) are one of the most common paleofaunistic elements in the South American megafauna. In this context, of the six genera most frequently recorded in the South American Pleistocene (Glyptodon, Neosclerocalyptus, Hoplophorus, Neuryurus, Panochthus and Doedicurus)...

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Detalles Bibliográficos
Autores principales: Zurita, Alfredo Eduardo, Soibelzon, Leopoldo Héctor, Soibelzon, Esteban, Gasparini, Germán Mariano, Cenizo, Marcos Martín, Arzani, Héctor
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2010
Materias:
Paleontología
Ciencias Naturales
Mamíferos
Argentina; Sudamérica; Glyptodon; Pleistoceno; paleoecología
Argentina; South America; Glyptodon; Pleistocene; palaeoecology
Fósiles
Anatomía
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/5356
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-5356
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Ciencias Naturales
Mamíferos
Argentina; Sudamérica; Glyptodon; Pleistoceno; paleoecología
Argentina; South America; Glyptodon; Pleistocene; palaeoecology
Fósiles
Anatomía
spellingShingle Paleontología
Ciencias Naturales
Mamíferos
Argentina; Sudamérica; Glyptodon; Pleistoceno; paleoecología
Argentina; South America; Glyptodon; Pleistocene; palaeoecology
Fósiles
Anatomía
Zurita, Alfredo Eduardo
Soibelzon, Leopoldo Héctor
Soibelzon, Esteban
Gasparini, Germán Mariano
Cenizo, Marcos Martín
Arzani, Héctor
Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
topic_facet Paleontología
Ciencias Naturales
Mamíferos
Argentina; Sudamérica; Glyptodon; Pleistoceno; paleoecología
Argentina; South America; Glyptodon; Pleistocene; palaeoecology
Fósiles
Anatomía
description The Glyptodontidae (Mammalia, Xenarthra) are one of the most common paleofaunistic elements in the South American megafauna. In this context, of the six genera most frequently recorded in the South American Pleistocene (Glyptodon, Neosclerocalyptus, Hoplophorus, Neuryurus, Panochthus and Doedicurus), at least four (Hoplophorus, Neuryurus, Panochthus and Doedicurus) present structures in their caudal armor that could have had defensive/offensive functions, in addition to a solid dorsal carapace and cephalic shield. In this article, we provide the first record and description of a series of highly modified osteoderms, located at the anterolateral region and over the cephalic notch of the dorsal carapace. These "spine"-like osteoderms were found in two of the largest Pleistocene glyptodonts: Glyptodon munizi (early-middle Pleistocene) and, G. reticulatus (late Pleistocene-early Holocene). We propose that they are structures for protection of the neck and abdomen, the most vulnerable body regions of these large armored animals, since they are not covered by the cephalic shield, carapace or caudal armor. Noteworthy, structures like those described herein are not known in glyptodonts recorded before the Great American Biotic Interchange (GABI), so it could be a reaction to the arrival of Smilodon and Arctotherium (Carnivora, Mammalia) the largest terrestrial carnivores that ever lived in South America.
format Articulo
Preprint
author Zurita, Alfredo Eduardo
Soibelzon, Leopoldo Héctor
Soibelzon, Esteban
Gasparini, Germán Mariano
Cenizo, Marcos Martín
Arzani, Héctor
author_facet Zurita, Alfredo Eduardo
Soibelzon, Leopoldo Héctor
Soibelzon, Esteban
Gasparini, Germán Mariano
Cenizo, Marcos Martín
Arzani, Héctor
author_sort Zurita, Alfredo Eduardo
title Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
title_short Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
title_full Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
title_fullStr Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
title_full_unstemmed Accessory protection structures in <i>Glyptodon</i> Owen (Xenarthra, Cingulata, Glyptodontidae)
title_sort accessory protection structures in <i>glyptodon</i> owen (xenarthra, cingulata, glyptodontidae)
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/5356
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