A new giant titanosaur sheds light on body mass evolution among sauropod dinosaurs.

ABSTRACT: Titanosauria was the most diverse and successful lineage of sauropod dinosaurs. This clade had its major radiation during the middle Early Cretaceous and survived up to the end of that period. Among sauropods, this lineage has the most disparate values of body mass, including the smallest and largest sauropods known. Although recent findings have improved our knowledge on giant titanosaur anatomy, there are still many unknown aspects about their evolution, especially for the most gigantic forms and the evolution of body mass in this clade. Here we describe a new giant titanosaur, which represents the largest species described so far and one of the most complete titanosaurs. Its inclusion in an extended phylogenetic analysis and the optimization of body mass reveals the presence of an endem

SUBMITTER: Carballido JL 

PROVIDER: S-EPMC5563814 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature