The Zupaysaurus is a therapod dinosaur that has a maximum size of about 4 meters long. They stood on their hind legs, using their front limbs to grab prey. The name "Zupaysaurus" means "devil lizard." They used to thrive in Argentina in the Triassic period. Two parallel crests may have been on the center of its snout like the Dilophosaurus. They may have used their crests for communication, but it is unknown if they really did. These dinosaurs are medium-sized and are relatively small compared to other therapods. The way their body is built is similar to that of other earlier therapods. The Zupaysaurus is related to the Dilophosaurus, and again has the parallel crests on its snout.