Dracorex Hogwartsia (meaning "dragon king of Hogwarts"). Yep it's a real thing. This dinosaur was named by the Childrens Museum of Indianapolis. https://en.wikipedia.org/wiki/Dracorex It's become one of my favorite dinosaurs due to its dragon-like head.

I didn't find many refs of this dino.
Ballpoint pen. (scanner does like the paper so I'm taking pix with my phone)

All Inktober art will be posted on my Twitter: https://twitter.com/TigrisTheLynx