As he activated the Well of AllSparks to create life, he reformatted the dead creatures of the planet into mechanical beings, creating creatures like the Predacons, a race of Cybertronian dragons parallel to Earth's dinosaurs.
He reformatted the dead creatures of the planet into mechanical beings. He was creating creatures like the Predacons parallel to Earth's dinosaurs. He activated the Well of AllSparks to create life. The Predacons were a race of Cybertronian dragons.