Rugocaudia (meaning "Wrinkled Tail") is a genus of basal titanosauridae, a family of sauropod, from Early Cretaceous of Montana, USA. It is known from a partial skeleton, which included 18 tail vertebrae. It was excavated from the Clovery Formation, rich with Early Cretaceous rocks. Rugocaudia was first described and named by D. Cary Woodruff in 2012. The type and only species is R. cooneyi.