Acrocanthosaurus means "high-spined lizard" and atokensis describes where the first specimens were found in Atoka County, Oklahoma. Acro got its name from the extension on its vertebrae. Acro lived during the early Cretaceous Period, about 110 million years ago.
The specimen was found in southeastern Oklahoma in 1983. It is called the "Terror of the South" because of its range; Acrocanthosaurus lived in the southern half of North America. Fossils have been found in Texas, Oklahoma, Utah, and Maryland.
Bones may tell us what dinosaurs look like, but the tracks tell us how they behaved. Look at the tracks drawn from a real trackway found in Texas.