Petroleus Rex is a green Tyrannosaurus Rex who is one of the villains of Radioactive Man and also one of the members of The Fossil Fuel Four. Notably, he has gas pumps for arms, which are the source of his gasoline shooting powers.
History[]
Before becoming a supervillain, he was an environmental scientist known as Rex Bernstein. He, along with the rest of The Fossil Fuel Four, defeated and killed Radioactive Man.
Appearance[]
Petroleus Rex is a green, scaly dinosaur-man, with gas pumps implanted into his sides where his arms should be. He has two claws on each foot, as well as an additional toe on each of his heels, and stands in a hunched posture. He has yellow, cat-like eyes, his body is criss-crossed with black leather straps, and he seems to have some sort of red-and-grey machine strapped to his back with them, although it's purpose is unclear.

Powers[]
He can shoot gasoline from the gas pumps that serve as his arms.
Trivia[]
- His name is a play on Petroleum and Tyranosaurus Rex.
- His powers are likely a reference to the fact and common joke that oil is partially made from dinosaur carcasses.
- He has become his destiny.