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Continental Cretaceous deposits exposed in central Patagonia, Argentina, preserve a rich and important record of titanosaurian evolution that spans the entire Upper Cretaceous. Recently, a new lithostragraphic unit, the Lago Colhué Huapi Formation (Coniacian – Maastrichtian), was located in the Golfo San Jorge Basin. Here, we describe new titanosaurian sauropod material from that formation (UNPSJB-Pv...
We describe new and redescribe previously discovered sauropod dinosaur material from the Upper Cretaceous (middle Cenomanian–Turonian) Bajo Barreal Formation of south-central Chubut Province, central Patagonia, Argentina. The remains consist of associated and isolated axial skeletal elements recovered from three separate localities, and are herein assigned to the morphologically aberrant Rebbachisauridae...
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