Fact Sheet
Dinosaur/Paleontology Dictionary
Name: Tyrannosaurus rex.
Meaning: Tyrannosaurus rex means "tyrant lizard king"
Pronounced: tie-RAN-o-SAWR-us rex
Named By: Henry Fairfield Osborn
When Named: 1905
DIET: Carnivore (meat-eater) - T. rex ate large dinosaurs, like
Triceratops
SIZE: Length - 40 feet (12.4 m) long
Height: 15 to 20 feet (4.6 to 6 m) tall
Weight: 5 to 7 tons
When it live: Late Cretaceous period, about 85-65 million years ago
Where it live: Fossil have been found in the USA (in Montana,
Texas, Utah, and Wyoming), Canada (Alberta and Saskatchewan), and east Asia
(Mongolia).
Fossils: What was Found - About 30 incomplete T. rex fossils have been
found. One T. rex footprint has been found, in an undisclosed location in New
Mexico, USA. Fossilized T.rex dung has also been found.
-Who Found the Fossils: The first T. rex was first found by Barnum
Brown in 1902.
-Where: The first T. rex was found in Hell Creek, Montana, USA, North
America.
Tyrannosaurus rex's arms: were only about 3 feet (1 m) long, and it had
2-fingered hands. T. rex had cone-shaped, serrated teeth that were continually
replaced.
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