Among some of the earliest of dinosaurs to evolve, Unaysaurus tolentenoi was a prosauropod found in the Caturrita formation in what is now Brazil. In life, it would have reached lengths of up to 2.5 meters (about 8 feet) long, weighed up to 70 kilograms (about 154 pounds) and, reached a height of about 80 centimeters (about 2’ 7”). Its genus name means “black water lizard” while the species name comes from Tolentino Marafiga, who discovered the remains on the side of the road. Being the eleventh species of dinosaur discovered in Brazil, this animal is also the first prosauropod found in there. It was first described by L. A. Leal, S. A. K. Azevodo, A. A. W. Kellner and, A. A. S. da Rosa in 2004 in addition to
