 South American aetosaurs have been found from Argentina, Brazil, and Chile. In Argentina, they are known from the Carnian Ischigualasto Formation. Common genera from Ischigualasto include Aetosauroides and Stagonolepis. In Brazil, fossils have been found in the Santa Maria and Caturrita Formations in Rio Grande do Sul (Paleorrota). Chilean aetosaurs are represented by one genus, Chilenosuchus, from the Antofagasta Region. Aetosaurs have also been found from India, which, along with South America, was part of Gondwana during the Late Triassic. Early descriptions of aetosaurs included material from the Maleri Formation in south-central India, although it was too inadequate to assign specimens to any particular genus. Based on such descriptions, the Indian aetosaurs most closely resemble Longosuchus and Paratypothorax. Reports of aetosaurs from Madagascar are based on probable crocodylomorph scutes.
