The Baby Eruptodon has the same appearance and coloration as his mother.
The baby was born after it's egg hatched at the sacred hatching ground and the Defenders of the Wing had him for a few weeks When Ryker struck. Mala asked Fishlegs to take care of him. After the battle, Mala felt that the baby was not safe on their island. So Fishlegs took it along to Dragon's Edge. When Ryker attacked, Fishlegs took it to safety. Noticing the volcano "waking" up from the blasts, he took the Eruptodon up to the volcano's mouth. The baby ate the flow of lava and has seemingly saved the Edge.