For 135 million years, dinosaurs were the undisputed rulers of the Earth, and might still be today if they weren’t wiped out by a cataclysmic event 65 million years ago. However, our planet has been around for a lot longer than the dinosaurs reign and, as it turns out, nature is quite adept at producing nightmare-inducing monsters. To think that dinosaurs are the only scary inhabitants of our prehistoric past would be a mistake.
Earth was full of scary monsters before the dinosaurs came along. A prime example is gorgonops, an animal that lived 260 million years ago, way before dinosaurs became the dominant predators. Growing around six to ten feet in length, gorgonops was a fast and vicious predator which allowed it to become the apex predator of its day. It also helped that gorgonops had massive canines that almost protruded beyond its lower jaw.