Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina

A large diversity of Glyptodontidae has been proposed as characterizing the Chapadmalalan Age (Pliocene). Most of these taxa were recognized on the basis of partial dorsal carapaces and/or caudal tubes, whereas the main diagnostic characteristic is a particular morphology of the exposed surface of t...

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Detalles Bibliográficos
Autores principales: Zurita, Alfredo Eduardo, Taglioretti, Matías, de los Reyes, Martín, Cuadrelli, Francisco, Poiré, Daniel Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Geología
Diversity
Glyptodonts
Osteoderms
Pliocene
Southern South America
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86252
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86252
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Diversity
Glyptodonts
Osteoderms
Pliocene
Southern South America
spellingShingle Geología
Diversity
Glyptodonts
Osteoderms
Pliocene
Southern South America
Zurita, Alfredo Eduardo
Taglioretti, Matías
de los Reyes, Martín
Cuadrelli, Francisco
Poiré, Daniel Gustavo
Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
topic_facet Geología
Diversity
Glyptodonts
Osteoderms
Pliocene
Southern South America
description A large diversity of Glyptodontidae has been proposed as characterizing the Chapadmalalan Age (Pliocene). Most of these taxa were recognized on the basis of partial dorsal carapaces and/or caudal tubes, whereas the main diagnostic characteristic is a particular morphology of the exposed surface of the osteoderms. From a biostratigraphic point of view some species are biostratigraphically important. The Upper Chapadmalalan is based on the Paraglyptodon chapadmalensis biozone. Both the re-evaluation of the type and referred materials and new significant findings from the Chapadmalal and El Polvorín Formations indicate that the diversity of Pliocene Glyptodontidae is more limited than previously supposed. The particular morphology of the exposed surface of the osteoderms that characterizes some of the species actually corresponds to a taphonomic alteration, which results in a non-real ornamentation pattern. Thus, the Glyptodontinae P. chapadmalensis must be replaced as a fossil guide because neither this species nor the species included in the genera Urotherium, Trachycalyptus and Lomaphorus are well characterized. Taking into account the diversity of Glyptodontidae for this lapse, the Glyptodontinae are very scarce (a situation that contrasts with its records in the Pleistocene), whereas Eosclerocalyptus, “Plohophorini” (Plohophorus) and Doedicurinae (cf. Eleutherocercus antiquus) are among the most recorded taxa.
format Articulo
Articulo
author Zurita, Alfredo Eduardo
Taglioretti, Matías
de los Reyes, Martín
Cuadrelli, Francisco
Poiré, Daniel Gustavo
author_facet Zurita, Alfredo Eduardo
Taglioretti, Matías
de los Reyes, Martín
Cuadrelli, Francisco
Poiré, Daniel Gustavo
author_sort Zurita, Alfredo Eduardo
title Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
title_short Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
title_full Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
title_fullStr Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
title_full_unstemmed Regarding the real diversity of Glyptodontidae (Mammalia, Xenarthra) in the late Pliocene (Chapadmalalan Age/Stage) of Argentina
title_sort regarding the real diversity of glyptodontidae (mammalia, xenarthra) in the late pliocene (chapadmalalan age/stage) of argentina
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86252
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