Commissioner Stonebone is the head of Reptilon's chief police department, the Triceracops. He is Tricero's former boss, and an ally of the Dinosaucers.

When the Maltese Pterodactyl was stolen, he called on the Dinosaucers to lend him Tricero's aid, since only he could contact The Dino in Red. Only with her help could they solve the case.

He not only has the respect of Tricero and the Dinosaucers, but that of his own Triceracops as well.