A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs

We present a new medium-sized basal sauropodomorph, Sefapanosaurus zastronensis gen. et sp. nov., from the Upper Triassic−Lower Jurassic Elliot Formation of South Africa. It is represented by parts of the postcranial skeleton of at least four individuals, including: cervical, dorsal, sacral and caud...

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Detalles Bibliográficos
Autores principales: Otero, Alejandro, Krupandan, Emil, Pol, Diego, Chinsamy, Anusuya, Choiniere, Jonah
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Zoología
Anchisauria
Elliot Formation
Gondwana
Sauropoda
Sauropodiformes
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/103281
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-103281
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Anchisauria
Elliot Formation
Gondwana
Sauropoda
Sauropodiformes
spellingShingle Zoología
Anchisauria
Elliot Formation
Gondwana
Sauropoda
Sauropodiformes
Otero, Alejandro
Krupandan, Emil
Pol, Diego
Chinsamy, Anusuya
Choiniere, Jonah
A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
topic_facet Zoología
Anchisauria
Elliot Formation
Gondwana
Sauropoda
Sauropodiformes
description We present a new medium-sized basal sauropodomorph, Sefapanosaurus zastronensis gen. et sp. nov., from the Upper Triassic−Lower Jurassic Elliot Formation of South Africa. It is represented by parts of the postcranial skeleton of at least four individuals, including: cervical, dorsal, sacral and caudal vertebrae, most of the forelimb, and part of the hindlimb. Sefapanosaurus bears several autapomorphies of the astragalus, and referred material also shows autapomorphic features. The inclusion of Sefapanosaurus in a phylogenetic analysis places it within the group of sauropodomorphs more closely related to sauropods than to Massospondylus (i.e. Sauropodiformes), increasing the currently known diversity of the so-called ‘transitional forms’ leading to Sauropoda. Character optimization revealed the presence of several features that are common for taxa placed within the transitional branches basal to Sauropoda. Sefapanosaurus, together with other transitional sauropodomorphs reported during the last decade, highlights the importance of Gondwanan taxa for understanding the palaeobiodiversity, global distribution, and macroevolutionary changes in the group related to the rise of sauropods.
format Articulo
Articulo
author Otero, Alejandro
Krupandan, Emil
Pol, Diego
Chinsamy, Anusuya
Choiniere, Jonah
author_facet Otero, Alejandro
Krupandan, Emil
Pol, Diego
Chinsamy, Anusuya
Choiniere, Jonah
author_sort Otero, Alejandro
title A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
title_short A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
title_full A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
title_fullStr A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
title_full_unstemmed A new basal sauropodiform from South Africa and the phylogenetic relationships of basal sauropodomorphs
title_sort new basal sauropodiform from south africa and the phylogenetic relationships of basal sauropodomorphs
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/103281
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