Ankylosaurus

Ankylosaurus is a genus of ankylosaur from the late-cretaceous period of North America, around seventy-one-million-years ago.

Facts
Ankylosaurus is the biggest of its kind, and like all ankylosaurs has a shell covered in scutes and a club at the end of its tail.

In the film
Umasou, the main hero after Heart is of this genus (and by far the only one shown on-screen).