Ichthyovenator was a mid-sized spinosaur. This predator was about 25-30 feet long and weighed around 2 tons. Unlike other spinosaurs, who tend to have one single sail, this dinosaur had two sails. Like other spinosaurs, Ichthyovenator was a lightweight carnivore that likely fed on fish and small dinosaurs. Ichthyovenator lived in Asia about 120 million years ago.