Achelousaurus is an extinct genus of centrosaurine ceratopsian dinosaur that lived in North America during the Late Cretaceous period around 74.2 million years ago.
It bears a superficial resemblance to Pachyrhinosaurus and Einiosaurus.
Achelousaurus was discovered in Montana in 1994 by Scott Sampson.
Jurassic Park franchise[]
Achelousaurus was featured in the Jurassic Park Institute now available to browse on Dinopedia.