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Temporal range: Lower Jurassic
Scientific classification
Kingdom: Animalia
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Coelophysidae
Genus: Megapnosaurus

M. rhodesiensis (type)
M. kayentakatae

Megapnosaurus was a small dinosaur from the early Jurassic. It was a relative of Coelophysis but it had two crests on top of its head.

It is shown in the movie When Dinosaurs Roamed America attacking an Anchisaurus and getting scared off by a Dilophosaurus. It was called Syntarsus at that time.