Titlebook: South American Sauropodomorph Dinosaurs; Record, Diversity an Alejandro Otero,José L. Carballido,Diego Pol Book 2022 The Editor(s) (if appl

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,Non-sauropodiform Plateosaurians: Milestones Through the “Prosauropod” Bauplan,tion of features related to herbivory, large body size, and quadrupedality. This chapter is focused on the post-Carnian radiation of sauropodomorphs, for which the South American record accounts for about 25% of the world record. It has provided key information in understanding certain stages of thi

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South American Non-Gravisaurian Sauropodiformes and the Early Trend Towards Gigantism,ated quadrupedal posture)—show the first clear steps towards gigantism. This group is known by moderately gracile to robust forms that attained large body size during the Late Triassic and Early Jurassic. The South American record is restricted to Argentina, including two early-branching forms from

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Highly Specialized Diplodocoids: The Rebbachisauridae,saurines . and . and the rebbachisaurines . and .), together with forms of uncertain phylogenetic filiation (.). Rebbachisaurids were important in South America toward the end of the Early Cretaceous, integrating, at that time, the sauropod faunas together with macronarians (Titanosauriformes) and o

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The Rise of Non-Titanosaur Macronarians in South America,Colombia were suggested as brachiosaurids, but these assignments are questionable. Until now, no clear somphospondylans have been recorded in Jurassic levels. In South America, basal, non-titanosaur somphospondylans are represented by three taxa registered in Argentina: . and . from the Early Cretac

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