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- A review of the new sauropod material from the Els Nerets locality (UpperCretaceous, South-Central Pyrenees): estimating species diversityPublication . Vázquez, Bernat; Castillo-Visa, OscarABSTRACT: Titanosauria is the only sauropod taxa present in the Late Cretaceous of Europe. One of the most diverse localities in the Southern Pyrenees is the lower Maastrichtian site of Els Nerets (Tremp, Catalonia, Spain). The present work reviews the new sauropod material discovered in recent years together with the classical specimens from the site in order to establish the Minimum Number of Individuals (MNI) through the relationships between the appendicular elements. The results show the presence of three adult individuals (based on histological observations) of different sizes, suggesting the occurrence of two distinct, indeterminate species. Although they are similar, morphological comparisons with other Ibero-Armorican titanosaurs suggests that the individuals from Els Nerets cannot be confidently assigned to any of them given the fragmentary nature of the material and the lack of recognisable autapomorphies. However, this work improves on our understanding of the Els Nerets titanosaur diversity.