Gorosaurus (ゴロザウルス, Gorozaurusu) is a giant theropod dinosaur monster that first appeared in the 1967 film King Kong Escapes and was incorporated into the Godzilla series the following year in Destroy All Monsters.
Gorosaurus looks like a giant bipedal dinosaur with a green bumpy skin, a large head, two short arms with three fingers on each hand, long and powerful legs, and small triangular plates running down his back. In King Kong Escapes, Gorosaurus is 35 meters tall, 65 meters long, and weighs 8,000 tons. In Destroy All Monsters, Gorosaurus is 50 meters tall, 100 meters long, and weighs 22,000 tons.
Gorosaurus was a type of gigantic dinosaur living on Mondo Island. According to Toho, he is a descendant of Allosaurus that survived the Cretaceous extinction event.