Staurikosaurus was an early dinosaur meaning it was in one of the first periods but it didnt make it very far. It was the Late Triassic when they first started roaming the Earth. A Staurikosaurus is about 6.50 feet long ( 2 meters). The name Staurikosaurus means Southern Cross Reptile. Since it is not that tall it is very light. It is about 33 pounds (15 killagrams). It eats anything smaller that it is able to catch. It lives in South America. It lived about 220,000,000 Years Ago! The Staurikosaurus was in the Theropoda group.