Known for the two distinctive crest bones on its head, most likely used for courtship, the dilophosaurus is one of the largest carnivorous dinosaurs of the early Jurassic period. This species of dinosaur has been discovered in both Arizona and China, which although at the time were part of the same piece of land, were still quite a large distance apart.
The dilophosaurus was a carnivore and had strong arms that would have helped it to grab its prey, along with a long jaw full of teeth and a top speed of around 30mph. This species also had a long tail, which may have been used as a whip to attack predators or competitors.
It lived between 201 and 190 million years ago, the first dilophosaurus fossils are thought to have been discovered in America in the 1940s.