Titanosaurian teeth from the South-central Pyrenees (Upper Cretaceous, Catalonia, Spain)

摘要: In Europe, the sauropod record of the uppermost Cretaceous (Campanian–Maastrichtian) concentrates in Spain, France, and Romania with up to eight titanosaurian species erected and a similar number of tooth morphotypes described. Recently, the lower Maastrichtian locality of Els Nerets from the Tremp Basin (Catalonia, Spain) has yielded the largest tooth sample for a Late Cretaceous titanosaur in the continent. A comprehensive description of 18 teeth from this locality shows that they have conical and slender crowns, pronounced development of mesial and distal carinae, a lemon-shaped cross-section, and a coarse enamel wrinkling defined by closely packed longitudinal crenulations that anastomose apically. The teeth are among the largest, slender-most, and most labiolingually compressed teeth from the region. Despite several morphological similarities with some other few titanosaur species described in …