Britanicus Rex

Britanicus Rex is a character in Marvel Comics who derives from an alternate Earth called Earth-99476, also known as Dino-World.

Britanicus Rex is an anthropomorphic reptile (sometimes misinterpreted as a dinosaur) and is a member of fellow group Excalibur.

Britanicus Rex is also a member of the Captain Britain Corps and acts like an emissary between the two superhero groups.