Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria
Despite continuous improvements, our knowledge of the neurocranial anatomy of sauropod dinosaurs as a whole is still poor, which is especially true for titanosaurians even though their postcranial remains are common in many Upper Cretaceous sites worldwide. Here we describe a braincase from the uppe...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::647efe9239c220c609a16e82323f8dd9 2023-05-15T13:56:13+02:00 Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria Knoll, Fabien Witmer, Lawrence M. Ridgely, Ryan C. Ortega, Francisco Sanz, Jose Luis 2016-09-03 https://doi.org/10.5061/dryad.dg027 undefined unknown http://dx.doi.org/10.5061/dryad.dg027 https://dx.doi.org/10.5061/dryad.dg027 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:89991 10.5061/dryad.dg027 oai:easy.dans.knaw.nl:easy-dataset:89991 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care endocast Sauropod Sauropoda braincase titanosaur Dinosauria Titanosauria dinosaur Brain Cretaceous Spain Europe archeo geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2016 fttriple https://doi.org/10.5061/dryad.dg027 2023-01-22T17:22:47Z Despite continuous improvements, our knowledge of the neurocranial anatomy of sauropod dinosaurs as a whole is still poor, which is especially true for titanosaurians even though their postcranial remains are common in many Upper Cretaceous sites worldwide. Here we describe a braincase from the uppermost Cretaceous locality of ‘‘Lo Hueco” in Spain that is one of the most complete titanosaurian braincases found so far in Europe. Although the titanosaurian Ampelosaurus sp. is known from the same locality, this specimen is clearly a distinct taxon and presents a number of occipital characters found in Antarctosaurus and Jainosaurus, which are approximately coeval taxa from southern Gondwana. The specimen was subjected to X-ray computed tomographic (CT) scanning, allowing the generation of 3D renderings of the endocranial cavity enclosing the brain, cranial nerves, and blood vessels, as well as the labyrinth of the inner ear. These findings add considerable knowledge to the field of sauropod paleoneuroanatomy in general and titanosaurian endocast diversity in particular. Compared with that of many sauropodomorphs, the endocast appears only slightly flexed in lateral view and bears similarities (e.g., reduction of the rostral dural expansion) with Gondwanan titanosaurians such as Jainosaurus, Bonatitan, and Antarctosaurus. The vestibular system of the inner ear is somewhat contracted (i.e., the radius of the semicircular canals is small), but less so than expected in derived titanosaurians. However, as far as the new specimen and Jainosaurus can be contrasted, and with the necessary caution due to the small sample of comparative data currently available, the two taxa appear more similar to one another in endocast morphology than to other titanosaurians. Recent phylogenetic analyses of titanosaurians have not included virtually any of the taxa under consideration here, and thus the phylogenetic position of the new Spanish titanosaurian—even its generic, let alone specific, identification—is not possible at the moment. ... Dataset Antarc* Unknown Labyrinth ENVELOPE(160.833,160.833,-77.550,-77.550) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care endocast Sauropod Sauropoda braincase titanosaur Dinosauria Titanosauria dinosaur Brain Cretaceous Spain Europe archeo geo |
spellingShingle |
Life sciences medicine and health care endocast Sauropod Sauropoda braincase titanosaur Dinosauria Titanosauria dinosaur Brain Cretaceous Spain Europe archeo geo Knoll, Fabien Witmer, Lawrence M. Ridgely, Ryan C. Ortega, Francisco Sanz, Jose Luis Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
topic_facet |
Life sciences medicine and health care endocast Sauropod Sauropoda braincase titanosaur Dinosauria Titanosauria dinosaur Brain Cretaceous Spain Europe archeo geo |
description |
Despite continuous improvements, our knowledge of the neurocranial anatomy of sauropod dinosaurs as a whole is still poor, which is especially true for titanosaurians even though their postcranial remains are common in many Upper Cretaceous sites worldwide. Here we describe a braincase from the uppermost Cretaceous locality of ‘‘Lo Hueco” in Spain that is one of the most complete titanosaurian braincases found so far in Europe. Although the titanosaurian Ampelosaurus sp. is known from the same locality, this specimen is clearly a distinct taxon and presents a number of occipital characters found in Antarctosaurus and Jainosaurus, which are approximately coeval taxa from southern Gondwana. The specimen was subjected to X-ray computed tomographic (CT) scanning, allowing the generation of 3D renderings of the endocranial cavity enclosing the brain, cranial nerves, and blood vessels, as well as the labyrinth of the inner ear. These findings add considerable knowledge to the field of sauropod paleoneuroanatomy in general and titanosaurian endocast diversity in particular. Compared with that of many sauropodomorphs, the endocast appears only slightly flexed in lateral view and bears similarities (e.g., reduction of the rostral dural expansion) with Gondwanan titanosaurians such as Jainosaurus, Bonatitan, and Antarctosaurus. The vestibular system of the inner ear is somewhat contracted (i.e., the radius of the semicircular canals is small), but less so than expected in derived titanosaurians. However, as far as the new specimen and Jainosaurus can be contrasted, and with the necessary caution due to the small sample of comparative data currently available, the two taxa appear more similar to one another in endocast morphology than to other titanosaurians. Recent phylogenetic analyses of titanosaurians have not included virtually any of the taxa under consideration here, and thus the phylogenetic position of the new Spanish titanosaurian—even its generic, let alone specific, identification—is not possible at the moment. ... |
format |
Dataset |
author |
Knoll, Fabien Witmer, Lawrence M. Ridgely, Ryan C. Ortega, Francisco Sanz, Jose Luis |
author_facet |
Knoll, Fabien Witmer, Lawrence M. Ridgely, Ryan C. Ortega, Francisco Sanz, Jose Luis |
author_sort |
Knoll, Fabien |
title |
Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
title_short |
Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
title_full |
Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
title_fullStr |
Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
title_full_unstemmed |
Data from: A new titanosaurian braincase from the Cretaceous “Lo Hueco” locality in Spain sheds light on neuroanatomical evolution within Titanosauria |
title_sort |
data from: a new titanosaurian braincase from the cretaceous “lo hueco” locality in spain sheds light on neuroanatomical evolution within titanosauria |
publishDate |
2016 |
url |
https://doi.org/10.5061/dryad.dg027 |
long_lat |
ENVELOPE(160.833,160.833,-77.550,-77.550) |
geographic |
Labyrinth |
geographic_facet |
Labyrinth |
genre |
Antarc* |
genre_facet |
Antarc* |
op_source |
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op_relation |
http://dx.doi.org/10.5061/dryad.dg027 https://dx.doi.org/10.5061/dryad.dg027 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.dg027 |
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1766263577073680384 |