Dilophosaurus

Dilophosaurus was roaming the Earth during the early Jurassic period, about 193 million years ago. Clearly a carnivore Dilophosaurus was a theropod dinosaur from the Sinemurian stage of the Early Jurassic Period, about 193 million years ago. It is one of the earliest known Jurassic theropods and one of the least understood. Probably not something you'd want to run into in a dark alley, or anywhere for that matter.