An extinct species of dinosaur. Extinction refers to any species that no longer exists in the present. When the Raven attempted to jar the Earth off its' axis, his judge accused him of nearly causing the extinction of the human race. References ↑ As seen in The Time Trap. ↑ As seen in The Menace of the White Dwarf. External Links Extinction at Wikipedia Retrieved from "https://superfriends.fandom.com/wiki/Extinction?oldid=49030" Categories: Biology Ecology Community content is available under CC-BY-SA unless otherwise noted.