Menucocelsior

Menucocelsior (meaning "the taller one from Salitral Ojo del Agua") is a genus of medium-sized titanosaurian sauropod dinosaur from the Late Cretaceous Allen Formation of Argentina. The type and only species is Menucocelsior arriagadai.

==Discovery== The Salitral Ojo del Agua area of Río Negro, Argentina was home to an entire sauropod fauna during the late Cretaceous period. Fossil material belonging to saltasaurines, aeolosaurines, and other titanosaurs have been discovered. In 2022, Rolando et al. designated one specimen as the type species for a new titanosaurian taxon, Menucocelsior arriagadai. The generic name combines the Mapudungun menuco, meaning "watering hole", a translation of Ojo del Agua, with the Latin celsior, meaning "higher" or "major." The specific name honours "Beto" Arriagada, the owner of the ranch where the discoveries were made.