Diplocaulus was an ancient amphibian that lived in North America. It had a very strange head, with two "forked" projections sticking out of either side of it. It lived during the Late Permian Period, which was the last geological time period of the Paleozoic Era. Diplocaulus is often mistaken to be a dinosaur by the general public. However, just like Dimetrodon (another Permian creature, which is often thought to be a dinosaur), it was not even remotely related to any of the dinosaurs.
Diplocaulus appeared in the simulation video game Jurassic Park III: Park Builder.
Diplocaulus can be created in Jurassic World: The Game as a common amphibian. Since January 11th, 2016, a fully maxed Diplocaulus could be mixed with a fully maxed Irritator to make the hybrid Diplotator.
Diplocaulus will appear in the game.