Genus Pisanosaurus is a small herbivorous dinosaur that lived during the Late Triassic period. It belonged to the clade Dinosauria and family Pisanosauridae. There are a few synonyms for Genus Pisanosaurus, including Revueltosaurus callenderi, known from the same locality and horizon as Pisanosaurus, which some researchers consider to be a junior synonym. Other synonyms include Silesaurus opolensis and Technosaurus smalli, both of which were previously thought to be early relatives of dinosaurs but are now considered non-dinosaurian. While the taxonomy and relationships of Pisanosaurus and its close relatives are still the subject of ongoing research and debate, these synonyms provide insight into the evolutionary history and diversity of early dinosauriforms.