Tyrannosaurus

- Other Names: Tarbosaurus
- Pronunciation: tye-RAN-uh-SAWR-us
- Translation: Tyrant Lizard
- Order: Saurischia
- Suborder: Theropoda
- Infraorder: Tetanurae
- Micro-order: Carnosauria
- Family: Tyrannosauridae
- Height: 23 feet (7.0 meters)
- Weight: 16,000 pounds (7,258 kg)
- Length: 50 feet (15.2 meters)
- Period: Late Cretaceous
- Description: Carnivore, Bipedal
- Notes: One of the largest-ever flesh-eating land animals,Tyrannosaurus is also the most famous. For example, it hasbeen featured in more movies than any other single dinosaur.Tyrannosaurus had a huge skull with powerful jaws lined with7-inch (18-cm) serrated teeth. Contrary to earlier conceptionsof sluggish mobility, Tyrannosaurus is now thought by some tohave been capable of bursts of up to 30 mph (48 km/h). In contrast to its massive legs, Tyrannosaurus had relatively short,small arms. Although they seem vestigal and useless, they werepowerful enough to lift over 450 pounds (270 kg). Tyrannosauruswas found in North America and Asia. The most famous species isTyrannosaurus rex from North America; Tyrannosaurus bataar fromAsia was formerly known as Tarbosaurus.