Megapnosaurus (meaning "Big Dead Lizard") was a small coelophysid dinosaur. It had a small crest, right in the middle of its head. This dinosaur's name was formerly Syntarsus, but the name Syntarsus has now become a name for a species of a modern beetle. The old name is still commonly being used in popular culture. It's main prey was Scutellosaurus and Anchisaurus, and it's main enemy and predator was Dilophosaurus. It was one of the few coelophysoids to survive in the jurassic, along with Segisaurus. It lived in Africa and North America.