Paleontologists unveiled a new dinosaur species that proves giant tyrant dinosaurs like the Tyrannosaurus rex were around 10 million years earlier than previously believed. The species, Lythronax argestes, was 24 feet long and 8 feet tall at the hip, and was covered in scales and feathers. The discovery offers valuable new insight into the evolution of the ferocious tyrannosaurs that have captured the awe of school children and adults alike, said Thomas Holtz Jr., a vertebrate paleontologist at the University of Maryland department of geology.  Asked what the carnivorous dinosaur ate, Mark Loewen, a University of Utah paleontologist,  said: “Whatever it wants.”