Dilophosaurus

 The Dilophosaurus was discovered 1940 in Arizona where three skelotons were found, only two were very well preserved. The Dilophosaurus is in Myth and some Movies known to be able to spit poison from it's mouth, but their is no scientific evidence that it  is true! It lived in the Jurassic Period about 193 million years ago. It was a Theropod that lived in North America.

http://www.premierexhibitions.com/exhibitions/12/68/extreme-dinosaurs/dilophosaurus