Prehistoric Dinosaur Hub on Instagram: "Acrocanthosaurus – The High-Spined Hunter 🦖 Acrocanthosaurus lived about 110 million years ago in the Early Cretaceous of North America. It reached up to 11.5 meters (38 feet) long and weighed around 6 tons, making it one of the largest predators of its time. Its most distinctive feature was the row of tall neural spines along its back and neck. These may have supported strong muscles, stored fat, or been used for display. Closely related to Allosaurus, i