Aetosauroides (meaning "Aetosaurus-like") is an extinct genus of reptile of the Late Triassic of South America. It was an aetosaur. It is one of four aetosaurs known from South America, the others being Neoaetosauroides, Chilenosuchus and Aetobarbakinoides. Three species have been named: the type species A. scaglia, A. subsulcatus and A. inhamandensis. Fossils have been found from the Ischigualasto Formation and the Santa Maria Supersequence of the late Carnian and early Norian stages, making Aetosauroides one of the oldest aetosaurs.[1]