Amai Liu & Old Man EPORNER Papo France Acrocanthosaurus. The Acrocanthosaurus, was a large bipedal predator that can measure up to 39 feet long and weighs 7. 2 tons. His name means "high spined lizard". He also had a long powerful tail, that allowed him to counterbalance the head and body as well as small forelimbs ideal for capturing and holding prey during the hunt. Papo's figurines are hand painted and made from durable synthetic plastic. Highly detailed with a natural color scheme that replicates the real animal, making the figure extremely realistic looking. Measures approximately 11. 5 inches L and 5 inches H.