The southernmost records of Rebbachisauridae (Sauropoda: Diplodocoidea), from early Late Cretaceous deposits in central Patagonia

► The fossils exhibit osteological characters undocumented in rebbachisaurids. ► The fossils constitute the southernmost record by Diplodocoidea. ► The fossils add to the globally sparse Late Cretaceous record of Rebbachisauridae.