Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).

Titanosaurians were a flourishing group of sauropod dinosaurs during Cretaceous times. Fossils of titanosaurians have been found on all continents and their remains are abundant in a number of Late Cretaceous sites. Nonetheless, the cranial anatomy of titanosaurians is still very poorly known. The S...

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Autores principales:	Fabien Knoll, Ryan C Ridgely, Francisco Ortega, Jose Luis Sanz, Lawrence M Witmer
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d94a20762436468fb06e6639a1c68e4c
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spelling	oai:doaj.org-article:d94a20762436468fb06e6639a1c68e4c2021-11-18T08:00:28ZNeurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).1932-620310.1371/journal.pone.0054991https://doaj.org/article/d94a20762436468fb06e6639a1c68e4c2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23355905/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Titanosaurians were a flourishing group of sauropod dinosaurs during Cretaceous times. Fossils of titanosaurians have been found on all continents and their remains are abundant in a number of Late Cretaceous sites. Nonetheless, the cranial anatomy of titanosaurians is still very poorly known. The Spanish latest Cretaceous locality of "Lo Hueco" yielded a relatively well preserved, titanosaurian braincase, which shares a number of phylogenetically restricted characters with Ampelosaurus atacis from France such as a flat occipital region. However, it appears to differ from A. atacis in some traits such as the greater degree of dorsoventral compression and the presence of proatlas facets. The specimen is, therefore, provisionally identified as Ampelosaurus sp. It was CT scanned, and 3D renderings of the cranial endocast and inner-ear system were generated. Our investigation highlights that, although titanosaurs were derived sauropods with a successful evolutionary history, they present a remarkably modest level of paleoneurological organization. Compared with the condition in the basal titanosauriform Giraffatitan brancai, the labyrinth of Ampelosaurus sp. shows a reduced morphology. The latter feature is possibly related to a restricted range of head-turning movements.Fabien KnollRyan C RidgelyFrancisco OrtegaJose Luis SanzLawrence M WitmerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 1, p e54991 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fabien Knoll Ryan C Ridgely Francisco Ortega Jose Luis Sanz Lawrence M Witmer Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
description	Titanosaurians were a flourishing group of sauropod dinosaurs during Cretaceous times. Fossils of titanosaurians have been found on all continents and their remains are abundant in a number of Late Cretaceous sites. Nonetheless, the cranial anatomy of titanosaurians is still very poorly known. The Spanish latest Cretaceous locality of "Lo Hueco" yielded a relatively well preserved, titanosaurian braincase, which shares a number of phylogenetically restricted characters with Ampelosaurus atacis from France such as a flat occipital region. However, it appears to differ from A. atacis in some traits such as the greater degree of dorsoventral compression and the presence of proatlas facets. The specimen is, therefore, provisionally identified as Ampelosaurus sp. It was CT scanned, and 3D renderings of the cranial endocast and inner-ear system were generated. Our investigation highlights that, although titanosaurs were derived sauropods with a successful evolutionary history, they present a remarkably modest level of paleoneurological organization. Compared with the condition in the basal titanosauriform Giraffatitan brancai, the labyrinth of Ampelosaurus sp. shows a reduced morphology. The latter feature is possibly related to a restricted range of head-turning movements.
format	article
author	Fabien Knoll Ryan C Ridgely Francisco Ortega Jose Luis Sanz Lawrence M Witmer
author_facet	Fabien Knoll Ryan C Ridgely Francisco Ortega Jose Luis Sanz Lawrence M Witmer
author_sort	Fabien Knoll
title	Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
title_short	Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
title_full	Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
title_fullStr	Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
title_full_unstemmed	Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).
title_sort	neurocranial osteology and neuroanatomy of a late cretaceous titanosaurian sauropod from spain (ampelosaurus sp.).
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/d94a20762436468fb06e6639a1c68e4c
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Neurocranial osteology and neuroanatomy of a late Cretaceous titanosaurian sauropod from Spain (Ampelosaurus sp.).

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