ArticleScientific reports2017
Endocast of the Late Triassic (Carnian) dinosaur Saturnalia tupiniquim: implications for the evolution of brain tissue in Sauropodomorpha.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 62 citations in OpenAlex.
- Dental form and function in the early feeding diversification of dinosaurs.Science advances · 2022Article
- The endocranial anatomy of Buriolestes schultzi (Dinosauria: Saurischia) and the early evolution of brain tissues in sauropodomorph dinosaurs.Journal of anatomy · 2021Article
- The cranial morphology ofPeerJ · 2020Article
- Digital Endocasting in Comparative Canine Brain Morphology.Frontiers in veterinary science · 2020Article
- First palaeoneurological study of a sauropod dinosaur from France and its phylogenetic significance.PeerJ · 2019Article
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- Article
- The braincase ofPeerJ · 2019Article
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- Paleoneuroanatomy of the aetosaurPeerJ · 2018Article
- Anatomy and systematics of the sauropodomorph Sarahsaurus aurifontanalis from the Early Jurassic Kayenta Formation.PloS one · 2018Article
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4 authors at 4 institutions in 2 countries.
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Abstract
The evolutionary history of dinosaurs might date back to the first stages of the Triassic (c. 250-240 Ma), but the oldest unequivocal records of the group come from Late Triassic (Carnian - c. 230 Ma) rocks of South America. Here, we present the first braincase endocast of a Carnian dinosaur, the sauropodomorph Saturnalia tupiniquim, and provide new data regarding the evolution of the floccular and parafloccular lobe of the cerebellum (FFL), which has been extensively discussed in the field of palaeoneurology. Previous studies proposed that the development of a permanent quadrupedal stance was one of the factors leading to the volume reduction of the FFL of sauropods. However, based on the new data for S. tupiniquim we identified a first moment of FFL volume reduction in non-sauropodan Sauropodomorpha, preceding the acquisition of a fully quadrupedal stance. Analysing variations in FFL volume alongside other morphological changes in the group, we suggest that this reduction is potentially related to the adoption of a more restricted herbivore diet. In this context, the FFL of sauropods might represent a vestigial trait, retained in a reduced version from the bipedal and predatory early sauropodomorphs.
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