Piatnitzkysaurus is an extinct genus of herbivorous dinosaur that lived during the Late Triassic period. It was first discovered in the Ischigualasto Formation of Argentina in the early 20th century. This dinosaur was a medium-
From Wikipedia
Piatnitzkysaurus is a genus of tetanuran theropod dinosaur that lived approximately 179 to 177 million years ago during the lower part of the Jurassic Period in what is now Argentina. Piatnitzkysaurus was a moderately large, lightly built, bipedal, ground-dwelling carnivore that could grow over 4 m (13.1 ft) long.