Titanosaurus (Godzilla)

Titanosaurus was a giant aquatic dinosaur that was discovered by Dr. Shinji Mafune. Although normally peaceful and not agressive in the least, Titanosaurus was controlled by Mafune through his cyborg daughter, Katsura, and sent to destroy an Interpol submarine. This caught the attention of the black hole aliens, who recruited Mafune and Katsura so that they could have Titanosaurus fight alongside Mechagodzilla against Godzilla.

Thanks to the efforts Akira Ichinose and Yuuchi Wakayama, it was discovered that Titanosaurus could not stand supersonic waves. Wakayama then designed a special supersonic ocillator, which was used against Titanosaurus. Titanosaurus was ultimately defeated after being hit multiple times by Godzilla's atomic breath. Seriously injured, he fell back into the sea and was never seen again.

Titanosaurus was an adept swimmer who could breathe underwater. He could also leap high into the air, and use his tail fin to create powerful whirlpools in the water or typhoon-force winds on land.