Nanotyrannus ("Pigmy tyrant") is a genus of tyrannosaur, known only from two juvenile
specimens, which may in fact represent juvenile specimens of the contemporary species Tyrannosaurus Rex.
This particular dinosaur appeared in the second episode, "T-Rex Hunter", of Jurassic Fight Club, where it was seen harassing and tormenting a pair of juvenile t-rex, only for the mother to return and crush his ribs and back. In the final episode, "Armageddon", the same dinosaur is seen in a flashback during the extinction.[60-66]
Measuring up to 5.1 meters (17 feet) long, 2.2 meters (7.5 feet) tall and weighing about one ton, this"pigmy tyrant" had a large head, a slim tail, long hind legs, short arms with two-fingered hands and large, strong jaws with sharp teeth.
Faster than the T-Rex by 10-20 mph (40- 50 mph), the Nanotyrannus had excellent vision and depth perception due to its large, forward-looking eyes. It could chase and overtake its victims with long, fast strides and wound them with its sharp claws and knife-like teeth. And, as in the "T-Rex Hunter" episode, it is claimed to have a bite force that exerts up to half a ton of pressure, which could easily snap the neck of a baby Tyrannosaurus Rex.
Like other Tyrannosaurs, Nanotyrannus probably preyed on the duck-billed, herbivorous hadrosaurs that were common in their region at the time.
- There's some controversy surrounding Nanotyrannus, as featured in National Geographic's special Dinosaurs Decoded (2009): many paleontologists now believe that this dinosaur was actually a juvenile specimen of T-Rex as opposed to an independent species.