A huge predator, a Tarbosaurus. That's the Asian cousin of Tyrannosaurus rex. Scary, but a thrill.
— Allen about Tarbosaurus

Tarbosaurus (name meaning "Alarming Lizard") is a genus of large, carnivorous tyrannosaurid theropod dinosaur that originated during the Late Cretaceous period in what is now Mongolia, Asia. The second largest member of the Tyrannosaur family, after Tyrannosaurus rex itself, Tarbosaurus was clearly an apex predator of its region, hunting most prey items, such as Saurolophus, one of the largest in its area, as well as its natural enemy, Therizinosaurus.


Era & DiscoveryEdit

Tarbosaurus lived in Mongolia during the Late Cretaceous period around 80 million years ago and died out with all the other dinosaurs toward the end of the Cretaceous about 65 million years ago. As some of the first members of the tyrannosaur family, it was the largest and apex predator of its ecosystem, living alongside and even hunting dinosaurs like Velociraptor, Mononykus, Protoceratops, Saurolophus, and even Therizinosaurus. It was first discovered in Mongolia in 1946.

Physical AttributesEdit

As the second largest member of the Tyrannosaur family, Tarbosaurus was such a large predator that it was one of the largest carnivorous dinosaurs that ever walked planet Earth. They stood 15–16 feet (4.6–4.9 m) tall, measured 32–43 feet (10–13 m) long, and weighed up to 4–6 tons (8,000–12,000 lbs.).

Being the Asian cousin of both its American relatives Albertosaurus, Gorgosaurus, and Tyrannosaurus rex, Tarbosaurus had the basic body plan of a generic theropod dinosaur. It was similar to its close and larger relative, Tyrannosaurus, but had a sleeker, slimmer head. It also had completely grey scales. Tarbosaurus would occasionally walk vertically, in order to balance its massive head with the rest of its body.

Being the top predator of Mongolia at the end of the Late Cretaceous period, Tarbosaurus were the biggest land predators of their region because they stood tall and stood vertically. Their small arms at the front helped balance their massive heads with their huge skulls and massive teeth for making devastating bites into prey and pulling out chucks of flesh. In addition, Tarbosaurus had good hearing.

Behavior & TraitsEdit

Unlike most other members of the tyrannosaur family that hunted in packs, Tarbosaurus was often a solitary hunter, only getting together in groups during mating season. However, they have been known to hunt in packs some of the time. Tarbosaurus were aggressive apex predators which hunted alone, and would attack probably any other animal in the Mongolian Desert. Perhaps the only animal that posed a threat to a Tarbosaurus - save for another of it's own species - was its natural enemy, Therizinosaurus.

Journal EntryEdit

An Asian tyrannosaur, Tarbosaurus ("Alarming Lizard") was said to be something of an equivalent to Tyrannosaurus rex itself, despite not being quite as large or as powerful. Nevertheless, Tarbosaurus was a terrifying and enormous predatory dinosaur, one of the largest that ever existed and the second largest member of the Tyrannosaur family.

At more than 40 feet in length, these were the apex predators of their region in Mongolia during the Late Cretaceous. Often solitary, Tarbosaurus was also a pack hunter, which allowed it to hunt other prey it could not take down by itself, including its natural enemy Therizinosaurus.

— Allen, in his Journal, about Tarbosaurus