The Borialosaurus are an aquatic, dinosaur species who formerly swam in the seas of Maltus millions of years ago.
Biology[]
The body of the Borialosaurus features blue skin, a whip-like tail, a pair of slender legs with talons, two arms with three fingers and a thumb, a set of spinal ridges along their necks, a head similar to dinosaurs, and lots of carnivorous teeth in their mouths.
History[]
Millions of years ago, the Borialosauruses were hunted to extinction by the Guardians of the Universe, until only a single member, who was also called Borialosaurus, was left. He would go on to be regarded as the oldest member of the entire Sinestro Corps.