Ulughbegasaurus, a giant predator from 90 million years ago that eclipsed the first tyrannosaurs, has been discovered.

rex ancestor. Named Ulughbegasaurus, this creature reigned as the apex predator long before the legendary Tyrannosaurus rex. The dinosaur, which lived between 80 to 90 million years ago ...

rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 million years ago, long before the rise of its more famous cousin. The fossil record has now offered up this ...