Enter the void and defeat all enemies in it. A portal will soon open, and you'll find yourself in a child's room. There's a chance that either a Chefosaurus or a Pyro Dino (an offensive variant of the Chefosaurus) will appear here. There's also a chance that nothing will appear at all. If a deviant does appear, simply interact with it and hope that it gets captured.The easiest way to get a Chefosaurus Rex in your base is to do a sidequest from Lowe called There's A Dragon Here . This quest becom...