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Quick Facts
Kingdom: Animalia
Phylum: Chordata
Class: Archosauria
Order: Saurischia
Family: Tyrannosauroidea
Genus: Tyrannosaurus
Species: rex

Height: 180 - 240 inches
Length: 480 inches
Weight: 10000 - 14000 lbs
Top Speed (Ground): 40 mph

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Tyrannosaurus Rex

Tyrannosaurus rex

Also Called: T-Rex

Tyrannosaurus Rex, a bipod, walked on its large rear legs with its massive head stretched forward, using its long tail as a counterbalance. No one is sure about what color T. rex was, but experts do know that it had scaly armor-like skin, similar to that of an alligators. T. rex had a massive head, measuring 5 feet. Its 4 foot jaws and 6-10 inch teeth made it a powerful biter and a fearsome sight. T. rex had two small eyes, but experts disagree about its sight capabilities. They do agree that T. rex had extremely large olfactory lobes and used these to smell food several miles away. So regardless of sight capabilities, T. rex could locate food from scent alone, if necessary.

Tyrannosaurus Rex was a carnivoreWhat does carnivore mean? (meat-eater) who dined on other dinosaurs. It is possible that T. rex was both a scavengerWhat does scavenger mean? and predatorWhat does predator mean?.

Tyrannosaurus Rex lived in the forests and plains of the Northwestern United States (Montana, Texas, Utah, Wyoming and New Mexico), Canada (Alberta and Saskatchewan), and East Asia (Mongolia). About 30 incomplete fossils have been found throughout the US, Canada and East Asia. One fossilized footprint was discovered in New Mexico and fossilized dung containing small pieces of a Triceratops bones have also been found.

Tyrannosaurus Rex was at the top of the food chain during its time. Although it is not evident if T. rex preyed upon its own species, many fossils show that it was definitely aggressive towards its own kind. T. rex fossils have been discovered with healed T. rex bite marks in them.

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