Dracorex

Dracorex is a genus of pachycephalosaur dinosaur. It lived 87.565 million years ago in the Hell Creek Formation in the United States.
This specimen and that of "Stygimoloch" may be juvenile "Pachycephalosaurus". The skull and four cervical vertebrae are all that was found.
Dracorex hogwartsia means "dragon king of Hogwarts (the school in Harry Potter)"