A Gramthel Image from Super Friends #18 (March 1, 1979) A Gramthel was a large reptilian-like animal. It was native to the planet Exxor. Jayna once became this creature in a time travel adventure to 1860 with her brother, Zan and Batman. Appearances Super Friends comics (1976-1981): Super Friends #18 (March 1, 1979) References ↑ As seen in the comic story: Manhunt in Time (1979). Retrieved from "https://superfriends.fandom.com/wiki/Gramthel?oldid=79707" Categories: SuperFriends Comic book Species Animal species Alien Races Community content is available under CC-BY-SA unless otherwise noted.