Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina

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Macranhinga paranensis Noriega, taxon described on the basis of tarsometatarsi, is known by dissociated remains of both girdles and limb bones coming from the "Conglomerado osífero" or "Mesopotamian" at Entre Ríos Province, Argentina (= base of the Ituzaingó Formation; late Mioce...

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Autores principales: Diederle, Juan Marcelo, Noriega, Jorge Ignacio, Acosta Hospitaleche, Carolina Ileana Alicia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Paleontología
Argentinian Mesopotamia
Aves
Macranhinga paranensis
Miocene
Vertebrae
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84420
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84420
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Argentinian Mesopotamia
Aves
Macranhinga paranensis
Miocene
Vertebrae
spellingShingle Paleontología
Argentinian Mesopotamia
Aves
Macranhinga paranensis
Miocene
Vertebrae
Diederle, Juan Marcelo
Noriega, Jorge Ignacio
Acosta Hospitaleche, Carolina Ileana Alicia
Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
topic_facet Paleontología
Argentinian Mesopotamia
Aves
Macranhinga paranensis
Miocene
Vertebrae
description Macranhinga paranensis Noriega, taxon described on the basis of tarsometatarsi, is known by dissociated remains of both girdles and limb bones coming from the "Conglomerado osífero" or "Mesopotamian" at Entre Ríos Province, Argentina (= base of the Ituzaingó Formation; late Miocene). In this contribution we report the first record of four isolated cervical vertebrae which are assigned to M. paranensis, coming from the Paraná Formation (middle-late Miocene) at La Ensenada stream (Diamante city, Entre Ríos Province) and from the "Conglomerado osífero" at La Toma Vieja fossiliferous locality (Paraná city, Entre Ríos Province). The systematic assignment of the new material is supported by different ratios calculated among the dimensions of vertebrae, pelvic girdles, and tarsometatarsi referred to M. paranensis, which were compared with the same proportions obtained in closed related taxa. The seventh vertebra presents several differences with that of Anhinga anhinga (Linnaeus) in the morphology of the foramen vertebrale and the facies articularis cranialis; the fifthteenth vertebra is very similar to that of M. ranzii Alvarenga & Guilherme and has the zygapophysis cranialis proportionally broader and projected more posteriorly than in A. anhinga. Finally, the eighteenth vertebra has the foramen transversarium more rounded, the base of the zygapophysis caudalis with less ridged borders, and the torus dorsalis more prominent caudally than in A. anhinga. Thus, morphology, size, and metric proportions support the reference of the new materials to M. paranensis. The record of M. paranensis in the Paraná Formation (middle-late Miocene) extends the temporal range of this taxon.
format Articulo
Articulo
author Diederle, Juan Marcelo
Noriega, Jorge Ignacio
Acosta Hospitaleche, Carolina Ileana Alicia
author_facet Diederle, Juan Marcelo
Noriega, Jorge Ignacio
Acosta Hospitaleche, Carolina Ileana Alicia
author_sort Diederle, Juan Marcelo
title Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
title_short Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
title_full Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
title_fullStr Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
title_full_unstemmed Nuevos materiales de <i>Macranhinga paranensis</i> Noriega (Aves, Pelecaniformes, Anhingidae) del Mioceno de la provincia de Entre Ríos, Argentina
title_sort nuevos materiales de <i>macranhinga paranensis</i> noriega (aves, pelecaniformes, anhingidae) del mioceno de la provincia de entre ríos, argentina
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84420
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