Just out | Description of a juvenile titanosaurian dinosaur from the Upper Cretaceous of Brazil @ Cretaceous Research


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Description of a juvenile titanosaurian dinosaur from the Upper Cretaceous of Brazil


Author(s)

Julian C.G. Silva Junior, Agustín G. Martinelli, Luiz C.B. Ribeiro, Thiago S. Marinho


Abstract:

We describe a juvenile specimen of a titanosaurian sauropod dinosaur consisting of two dorsal and three caudal vertebral centra, an ilium fragment, and an ischium unearthed in 1991 from Site Km 153.5 of highway BR-050 in the Serra da Galga region, municipality of Uberaba, state of Minas Gerais, Brazil. The outcrop at the site is assigned to the Serra da Galga Member of the Marília Formation (Bauru Basin: Bauru Group; Upper Cretaceous: Maastrichtian). Although the material is very incomplete, features such as strongly procoelous caudal centra suggest an affinity with the titanosaurian clade Lithostrotia. The extensive vertebral pneumaticity with deep pleurocoels and well-developed camerae supports the hypothesis that, in titanosaurs, the air sac system was already present and fully developed even at early ontogenetic stages.


READ IT HERE:

http://www.sciencedirect.com/science/article/pii/S0195667116303913

Lurdes Fonseca

Assistant Professor and Researcher at University of Lisbon
Sociologist (PhD), Paleontologist (Researcher in Micropaleontology), Majors in Sociology and Biology, Minor in Geology. Main interests in Paleontology: Microfossils, Molecular fossils, Paleobiology and Paleoecology. (read more about me)
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