Hypsirophus

Hypsirophus is known only from a few back bones, tail bones, and a rib fragment. That makes it one of the most incomplete stegosaurs.1

The name Hypsirophus means 'high roof' because the bones in its back were very tall.1

It was discovered during the 'Bone Wars', a fierce fossil-hunting rivalry between two scientists, Edward Drinker Cope and Othniel Charles Marsh.1

Cope, who named Hypsirophus, first thought it was a meat-eating dinosaur like Allosaurus. Later scientists realized it was a plant-eating stegosaur.1

Some scientists think Hypsirophus might be a valid dinosaur, while others consider it a nomen dubium (a doubtful name).1