Tyrannosaurus rex skull

Tyrannosaurus rex is one of the most famous dinosaurs of all time and the largest carnivore to walk the earth. The skull is the first one of T. rex to be found in South Dakota. This specimen is around sixty-seven million years old. It was discovered in Butte County in 1981. It was the sixth specimen of T. rex with an associated skull known in the entire world. The associated skeleton is around fifty percent complete.