Devil Dinosaur

Devil Dinosaur is a fictional character appearing in American comic books published by Marvel Comics. The character is depicted as resembling an enormous, crimson colored Tyrannosaurus-like theropod dinosaur. Created by Jack Kirby, the character first appeared in Devil Dinosaur #1 (April 1978). Devil Dinosaur and his inseparable ape-like friend, Moon-Boy, are natives of "Dinosaur World", a version of Earth in a parallel universe where dinosaurs and other prehistoric creatures co-exist with tribes of primitive humanoid beings. The comic is considered a "cult classic" by Kirby fans.

Appearances in Idea Wiki

 * A version of Devil Dinosaur (renamed "El Diablo") appears in Ultimate Marvel: Earth-2. This version is Roberto Montana, a former Mexican scientist whose mind and consciousness were transferred to the body of an altered red Tyrannosaurus Rex from Savage Land which, due to exposure to Gamma Radiation fluids combined with Vibranium shards during World War II, became a immortal dinosaur with the abilities of Sonic Wave roar and Nuclear Breath. In more modern eras, he had begun wearing a special armor of technology from Stark Industries, the Kree Empire and the Chitauri. He is also a loyal ally to Earth's superheroes (including Captain America, who was one of his war allies, and the Hulk) and occasionally acts as a mentor for the young ones (including Spider-Man and Ant-Girl).
 * Devil Dinosaur (again renamed El Diablo) is a supporting character in Marvel: All New, All Different Chronicles, voiced by Steve Blum in a Spanish accent. He is depicted as an altered, highly intelligent red Tyrannosaurus Rex who, due to exposure to Gamma Radiation fluids combined with Vibranium shards during World War II, became a immortal dinosaur with the abilities of Sonic Wave roar and Nuclear Breath. In more modern eras, he had begun wearing a special armor of technology from Stark Industries, the Kree Empire and the Chitauri. Initially a subject to Life Foundation scientists who found him in suspended animation in the underground of an abandoned military facility, he was later freed by the Guardians of the Galaxy and became a resident of Pegasus Z. He is also a loyal ally to Earth's superheroes (including Captain America, who was one of his war allies, and the Hulk) and the New Champions' guardian.