User:Eckelnathan12345

Tyrannosaurus rex skull The largest T. rex skulls found are up to 5 feet (1.5 m) long and have large openings called fenestrae where muscles attached. These openings also kept the skull from becoming too heavy. The back of the skull was very wide, but had a narrow snout which gave T. rex extremely good binocular vision. Many of the bones in the skull were fused into a honeycomb like mass that made the skulls lighter and possibly added flexibility to the bones. The bite of the T. rex was stronger than any of the non-tyrannosaurids. This was due to the U-shaped tip of the upper jaw. T. rex teeth could be up to 12 in. (30 cm) long including the root, which made them the largest of any carnivorous dinosaur.