Radon is a contraction of Pteranodon in Japanese. It also corresponds to the name of Ladon, the dragon in Greek mythology. It is con rmed that Rodan would be featured in the movie. Viral marketing describes him as a titanic kaiju with the skeletal structure of a Pteranodon and skin serving as plate armor. The Monarch Sciences identi es the island of Isla de Mara as Rodan's location and describes him as being 154 ft (46.94 m) tall with a weight of 39,043 tons and a wingspan of 871 ft (265.48 m), making it the shortest one of the character but the heaviest one and the one with the greatest wingspan. It is also stated to be powerful enough to level cities with thunderclaps generated by its wings.impervious to all damage unless when the organ recycles.