Advertisement. is a user-supported site.
As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.
Click here to learn more.

(Already a member? Click here.)

You might also like:
Giganotosaurus Fact Sheet PrintoutIguanodon Fact Sheet PrintoutStegosaurus Fact Sheet PrintoutMegaraptor Fact SheetIguanodon Fact SheetToday's featured page: Animal Jokes and Riddles for Kids

More Dinosaur Fact Sheets
Tyrannosaurus rex
Fact Sheet

Dinosaur/Paleontology Dictionary
NAME: 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 LIVED: Late Cretaceous period, about 85-65 million years ago
WHERE IT LIVED: 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.
  • Kingdom Animalia (animals)
  • Phylum Chordata (having a hollow nerve chord ending in a brain)
  • Class Archosauria (diapsids with socket-set teeth, etc.)
  • Order Saurischia - lizard-hipped dinosaurs
  • Suborder Theropoda - bipedal carnivores
  • Tetanura - advanced theropods
  • Infraorder Coelurosauria - lightly-built fast-running predators with hollow bones and large brains
  • Superfamily Maniraptoriformes - advanced coelurosaurs with a fused wrist bone
  • Family Tyrannosauroidea - huge predators with small arms and two-fingered hands (the third finger was very tiny). Tyrannosaurids include T. rex, Albertosaurus, Alectrosaurus, Alioramus, Chingkankousaurus, Daspletosaurus, Eotyrannus, Gorgosaurus, Nanotyrannus, Prodeinodon, Tarbosaurus, etc.
  • Genus Tyrannosaurus
  • Species T. rex (type species named by Osborn, 1905)
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.

Enchanted Learning Search

Search the Enchanted Learning website for:




Copyright ©2001-2018 ------ How to cite a web page