Dinosaur Tyrannosaurus also knew and simply as T. rex, was a large carnivorous theropod dinosaur that lived from 68 to 66 million years ago. Tyrannosaurus is the most well-known and most iconic prehistoric animal that has ever lived. Its fossil remains are relatively rare, as of 2012 only 44 specimens had been found, including three complete skulls. Tyrannosaurus rex measures 12.3 meters (40 feet) long, stands 3.66 meters (12 feet) tall at hips, and weighed about 8.4 tonnes (9.3 tons), meaning this dinosaur was bigger than the weight of the average African bush elephant and nearly as big as the biggest bull African bush elephant and it was also taller, longer and faster than elephants who can run as fast as a human. It was the largest carnivore ever in North America. All these Dinosaur Tyrannosaurus pictures were collected from the internet. Enjoy!