Acrocanthosaurus ("high-spined reptile") is a theropod that lived in North America during the Early Cretaceous.[115-95] It grew up to 40-43 feet long and weighed 6 tons. It hunted large herbivores such as Tenontosaurus and Paluxysaurus.
Acrocanthosauruses range went through most of the United States. It's fossils are found in Maryland, Oklahoma, Texas, Montana, Wyoming and Colorado. It's range is mostly were large prey items like Sauroposeidon,astodon Tenontosaurus, and Paluxysaurus and Sauropelta.