A new titanosaur, Atsinganosaurus velauciensis, gen. and sp. nov. is described from well-preserved remains from the new Upper Cretaceous locality of Velaux-La Bastide Neuve (Aix-en-Provence Basin, France). This taxon is mainly diagnosed by a combination of characters, which differentiates it without ambiguity from other European Late Cretaceous taxa (Lirainosaurus, Ampelosaurus and Magyarosaurus). Atsinganosaurus confirms the presence in western Europe during the latest Cretaceous of a third titanosaurian species, slender and less derived which allows us to better understand the evolutionary and paleobiogeographical history of this group during the Cretaceous.

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