<i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina

A new mid-sized sauropod from ‘La Buitrera’, Huincul Formation (Turonian-Coniacian), Rio Negro Province, <i>Cathartesaura anaerobica gen. et sp. nov.</i> is described. It is known from an incomplete, but associated skeleton that includes diagnostic postcranial elements such as a posterio...

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Detalles Bibliográficos
Autores principales: Gallina, Pablo Ariel, Apesteguía, Sebastián
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Naturales
Dinosauria
Sauropoda
Rebbachisauridae
Upper Cretaceous
Río Negro
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128593
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128593
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Dinosauria
Sauropoda
Rebbachisauridae
Upper Cretaceous
Río Negro
Argentina
spellingShingle Ciencias Naturales
Dinosauria
Sauropoda
Rebbachisauridae
Upper Cretaceous
Río Negro
Argentina
Gallina, Pablo Ariel
Apesteguía, Sebastián
<i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
topic_facet Ciencias Naturales
Dinosauria
Sauropoda
Rebbachisauridae
Upper Cretaceous
Río Negro
Argentina
description A new mid-sized sauropod from ‘La Buitrera’, Huincul Formation (Turonian-Coniacian), Rio Negro Province, <i>Cathartesaura anaerobica gen. et sp. nov.</i> is described. It is known from an incomplete, but associated skeleton that includes diagnostic postcranial elements such as a posterior cervical, an anterior caudal, and a mid caudal vertebra, a left scapula, a left ilium and a right femur. <i>Cathartesaura anaerobica gen. et sp. nov.</i> exhibits several autapomorphies, such as a posterior cervical vertebra with an accessory lamina that arises from the mid length of the prezygodiapophysial lamina and reaches the centrum, a thin, wing-like transverse processes on the anterior caudal vertebrae mostly supported by a ventral bony bar that frames a deep triangular fossa, and each anterior caudal neural spine with the lateral laminae composed of the spinoprezygapophyseal lamina, the lateral spinopostzygapophyseal lamina and the spinodiapophyseal lamina. The new taxon is related to <i>Rebbachisaurus</i> and <i>Limaysaurus</i> because of the presence of several synapomorphies, which support its inclusion in a separate clade of basal Diplodocoidea, the Rebbachisauridae. Aspects of rebbachisaurid vertebral anatomy including musculature and pneumaticity are briefly commented upon. A cladistic analysis is presented in an attempt to partially resolve basal diplodocoid phylogenetic relationships.
format Articulo
Articulo
author Gallina, Pablo Ariel
Apesteguía, Sebastián
author_facet Gallina, Pablo Ariel
Apesteguía, Sebastián
author_sort Gallina, Pablo Ariel
title <i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
title_short <i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
title_full <i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
title_fullStr <i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
title_full_unstemmed <i>Cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (Upper Cretaceous), Río Negro, Argentina
title_sort <i>cathartesaura anaerobica gen. et sp. nov.</i>, a new rebbachisaurid (dinosauria, sauropoda) from the huincul formation (upper cretaceous), río negro, argentina
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/128593
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AT apesteguiasebastian icathartesauraanaerobicagenetspnovianewrebbachisauriddinosauriasauropodafromthehuinculformationuppercretaceousrionegroargentina
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