It lives in the Frantic Bay and the Thunderstorm Valley. It has a dark purple color and is black on its lower side. It has big fangs that it use to kill or injure even big monsters. When enraged it can use its electric organ to electrify its bites. It's fully immune to thunder attacks they make it even stronger. That's why smaller Staurikosaurus sometimes attack the leader with thunder balls. When its electric organ gets injured it fails using its electricity. In Rage Mode the organ sets sparks free and its body color turns to a brighter purple. The weakness is water, then ice. It usually feeds of Aptonoth but attacks bigger and more dangerous monsters as well. It is the adult form of the Staurikosaurus (Minion).