Dark Ancients

The Dark Ancients are a group of ancient evils that were sealed away many years ago by the dinosaurs, and the main antagonists of Power Rangers Dino-Myte.

History
The Dark Ancients were a group of powerful beings evolved separately from the rest of the species on earth. It is unknown how they evolved exactly, but it is inferred that they may have been the result of experimentation by the Galstar Army.

The Dark Ancients began a conquest for world domination, killing off many resistant creatures and subjecting the rest to an iron fist rule. The dinosaurs, the most powerful beings at the time and the protectors of the world, fought back against the Dark Ancients in a great battle. At some point, an ancient weapon caused the dinosaurs' extinction. However, the weapon was able to seal away the Dark Ancients, with ground zero being their tomb.

At some point, a group of archaeologists, including the father of Tristan Bell, discovered the Dark Ancients sealing tomb, and accidentally released the last of the Dark Ancients. Tyrannius, the leader of the Dark Ancients, possessed a dinosaur fossil the archaeologists had, and regained physical form. He then proceeded to kill all the archaeologists and set off to revive the rest of his companions.