BackgroundIn the late Cretaceous era (70 million years ago) there was a species of therapod dinosaur resembling a large Tyrannosaurus, but with special amphibious adaptations which allowed it to swim between the islands upon which it hunted. This dinosaur species has been dubbed "Gojirasaurus".
A minimal breeding population of gojirasaurs somehow survived the great extinction event which killed off other dinosaurs and continued into the modern era. (Much the way many postulate that breeding populations of plesiosaurs survived to become modern "lake monsters".) Adaptations which aided the gojirasaurs in their survival probably included the ability to lay dormant for extended periods of time, and to endure high heat and radiation environments like active volcanic regions where man rarely encroaches. Living in the South Pacific, the gojirasaurs were observed only on rare occasions by the island people of simple fishing villages who incorporated the stories of these strange beasts into their folklore.
All but one (or perhaps two) of the gojirasaurs were apparently destroyed in World War II. One gojirasaurus was severely injured by Allied attack, but managed to cling to life on the remote island of Lagos (near the Marshal Islands in the South Pacific Ocean) until post-war nuclear tests caused him to be subjected to a huge dose of radiation. The radiation caused the gojirasaurus' already radiation-attuned physiology to rapidly mutate/adapt. The animal grew and changed until the gojirasaurus had developed into an entirely new form of creature... Godzilla!
- Godzilla will appear in Logan's Adventures of King Kong vs. Godzilla.