Dracorex is a very late pachycephalosaur. Only the skull has been found. It has lost the domed head characteristic of this group and instead has spikes and frills reminiscent of a mythical dragon.
The species name, hogwartsia is derived from the fictional Hogwarts School of JK Rowling's 'Harry Potter' books.
Taxonomy: Dinosauria, Ornithischia, Genasauria, Cerapoda, Marginocephalia, Pachycephalosauria, Goyocephala, Homalocephaloidea, Pachycephalosauridae
Named by: Bakker, Sullivan, Porter, Larson and Saulsbury (2006)
Type species: hogwartsia