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Tyrannosaurus rex
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Tyrannosaurus rex was a large
Theropod dinosaur. The animal was a
carnivore (meat-eater), and lived in North America and Asia
during late Cretaceous period,
about 67 to 65 million years ago.
It was one of the last dinosaurs, and probably went
extinct
during the the
Cretaceous-Tertiary mass
extinction.
An average Tyrannosaurus was about about 39 feet (11.9 meters) long, up to
20 feet (6.1 meters) tall, and weighed around 7 tons.
Until the mid-1990s, it was generally thought that Tyrannosaurus was the largest
land predator ever. Then, scientists discovered Gigantosaurus which
lived was a 45 feet (13.8 meter) long carnivore that lived in Argentina about 100
million years ago. New research, first published in
2006, now suggests
that
Spinosaurus may have been even
larger still: upto 51 feet (17 meters) long.
Since the 1960s, some scientists have argued that Tyrannosaurus was not
a fearsome predator, but a slow-moving scavenger, that fed on carcasses
killed by other carnivores.
However, other scientists
argue that the possibility of binocular vision (Tyrannosaurus rex has
two forward facing eyes), and the relatively large areas of the
brain associated with sight and smell, suggest it must have been an active predator.
Tyrannosaurus rex arm bones:

The name Tyrannosaurus rex
was chosen by
Henry Fairfield Osborn
in
1905,
and like most scientific names of animals is derived from Ancient Greek.
"Tyrannosaurus" means "tyrant lizard",
"rex" means "king", and hence in combination
"Tyrannosaurus rex" means
"tyrant king lizard".
Dinosaurs Tyrannosaurus
Poster
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Tyrannosaurus rex Timeline:
Tyrannosaurus rex was a carnivore (meat-eater) that lived from 67 to 65 million years ago

Related Information & Resources
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Tyrannosaurus rex Facts
Here is a summary of some of the key facts about Tyrannosaurus rex:
- Tyrannosaurus rex was a species of dinosaur.
- "Tyrannosaurus rex" means "tyrant lizard king". This name was chosen by Henry Fairfield Osborn in 1905.
- Tyrannosaurus rex was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Tyrannosaurus rex was not closely related to lizards, it did have similarly shaped pelvic bones.
- Tyrannosaurus rex was a Theropod - a member of a group of related bipedal dinosaurs that included the ancestors of birds (although Tyrannosaurus rex was not itself an ancestor of birds).
- Tyrannosaurus rex lived between about 67 million years ago and 65 million years ago, during the late Cretaceous period.
- Tyrannosaurus rex was one of the dinosaurs which died out during the Cretaceous-Tertiary mass extinction at the end of the Mesozoic Era.
- Tyrannosaurus rex lived in North America and Asia.
- Tyrannosaurus rex was a carnivore (meat-eater).
- Some scientists think that Tyrannosaurus rex was probably a scavenger, but others think it was an active predator.
- Tyrannosaurus rex was about 39 feet (11.9 meters) long, and about 20 feet (6.1 meters) tall.
- Tyrannosaurus rex weighed about 7 tons.
Tyrannosaurus rex Pictures and Posters
by AllPosters
Here are some Tyrannosaurus rex pictures and posters:
(Disclosure: Products details and descriptions provided by AllPosters. Our company may receive a payment if you purchase products from them after following a link from this website).
Tyrannosaurus rex Toys Here are some toys/games from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
Schleich Released: 2008-09-15 Toy
 | List Price: $19.99* Lowest New Price: $15.05* Usually ships in 24 hours* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - True to life modeling
- Made in compliance with all safety regulations
- With the Schleich-S tag, symbol for the highest quality
Product Description: Great for Kids. This item is not only a toy, but an educational series of hand painted replicas that reveals the prehistoric world. Each model comes equipped with a booklet containing its scientific data and a figure of a human in the same scale. Manufact |
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Papo Released: 2008-08-21 Toy
 | List Price: $21.99* Lowest New Price: $21.95* Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your credit card will not be charged until we ship the item.* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Papo dinosaurs are exquisite
- Has an articulated jaw
- Mix and match with other Papo dinosaurs
Product Description: Tyrannosaurus |
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Educational Insights Released: 2008-02-22 Toy
 | List Price: $99.99* Lowest New Price: $79.25* Usually ships in 24 hours* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Everything you need to have some serious dinosaur fun
- It is a 1:12 scale
- No painting needed
Product Description: Let your junior paleontologist create an exhibit in his bedroom with this super-sized, 3-foot-long T-Rex skeleton. The set includes 30 snap-together parts, an herbivorous dinosaur jawbone fragment, a rock-like display case, support rods, and a full-color poster. Educational Insights. Ages: 8+ |
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Schleich Released: 2008-09-15 Toy
 | List Price: $19.99* Lowest New Price: $14.98* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - True to life modeling
- Made in compliance with all safety regulations
- With the Schleich-S tag, symbol for the highest quality
Product Description: This handpainted Tyrannosaurus Rex model is great for play and collecting. Created in close cooperation with the Natural History Museum of the Humboldt-University Berlin. Scale 1:40. |
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Educational Insights Released: 2009-03-18 Toy
 | List Price: $19.99* Lowest New Price: $14.77* Usually ships in 24 hours* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Unearth prehistoric life
- After digging them out, assemble parts into a complete Tyrannosaurus Rex skeleton
- Ages 7+
Product Description: This series of four fascinating paleontology sets lets students excavate and assemble complete dinosaur skeletons from 'fossilized' rock! Features include excavation tool, dust brush, wax adhesive, and 32-page instructions with facts and stories about each dinosaur. |
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Safari Released: 2007-07-01 Toy
 | List Price: $15.99* Lowest New Price: $12.64* Usually ships in 24 hours* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Collectible dinosaur replicas
- Authentically detailed and intricately hand-finished with paint exceeding US and European lead safety standards
- For ages 3 to 8 years
Product Description: Part of the Safari Ltd. Carnegie Museum Dinosaur collection, replicas researched and authenticated by the paleontologists of the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania. Each is either 1:20 or 1:40 scale. This Tyrannosaurus Rex replica measures 10 inches long, 6.5 inches high. |
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Safari Toy
 | Lowest New Price: $4.99* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Safari Ltd. Wild Safari Dinosaur collection
- Hand-painted, phthalate free, safety tested
Product Description: Part of the Safari Ltd. Wild Safari Dinosaur collection, prehistoric figures sculpted by experts to ensure authenticity. Each dinosaur replica is amazingly detailed, hand painted for realism and designed to stimulate the imagination. This Wild Safari® Dino T-Rex replica measures 7 inches long, 4.25 inches high. |
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Papo Toy
 | Lowest New Price: $17.15* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Allosaurus |
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Jurassic Park Toy
 | | - Jurassic Park Electronic T-Rex!
- Realistic Dinosaur Skin!
- Please note since it is from 1993 it may reuire new batteries Not included.
Product Description: Jurassic Park Electronic Tyrannosaurus Rex (Kenner 1993) with realistic dinosuar skin and electronic roar and stomping sound. Please note this item is from 1993 and may require new batteries niot included. |
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Action Products Released: 2006-06-12 Toy
 | List Price: $29.99* Lowest New Price: $18.24* Usually ships in 24 hours* *(As of 04:54 Pacific 13 Mar 2010 More Info)
Click Here | - Real metal hammer and chisel included
- Paleontologist Field Guide included.
Product Description: I Dig Excavation Adventures let kids become modern day dinosaur hunters and archaeologists. Using steel tools, kids dig through dust-free Dinostone rock to unearth replica dinosaur bones and Egyptian artifacts.Using a steel hammer and chisel, your little archaeologist can dig up replica, snap-together bones of a Tyrannosaurus Rex, reassemble the pieces and paint the skeleton for display in their very own dinosaur museum. Includes Paleontologist Field Guide, paints to give discoveries a polished "museum" look and digging goggles. |
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Tyrannosaurus rex Books Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
Indiana University Press Hardcover (456 pages)
 | List Price: $49.95* Lowest New Price: $31.86* Lowest Used Price: $23.12* Usually ships in 24 hours* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | - ISBN13: 9780253350879
- Notes: Brand New from Publisher. No Remainder Mark.
Product Description: With its massive head, enormous jaws, and formidable teeth, Tyrannosaurus rex has long been the young person's favorite creepy carnivore in the Mesozoic zoo. Nor has T. rex been ignored by the scientific community, as this new collection amply demonstrates. Scientists explore such questions as why T. rex had such small forelimbs; how the dinosaur moved; what bone pathologies tell us about life in the Cretaceous; and whether T. rex was a predator, a scavenger, or both. There are reports on newly discovered skeletons, on variation and sexual dimorphism, and how the big beasts chewed. The methods used by the contributors to unlock the mysteries of T. rex range from "old fashioned" stratigraphy to contemporary computer modeling. Together they yield a wealth of new information about one of the dinosaur world's most famous carnivores. An enclosed CD-ROM presents additional photographic and filmed reconstructions of the mighty beast. |
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By Daniel Cohen
Capstone Press Paperback (24 pages; 1)
 | List Price: $6.95* Lowest New Price: $3.89* Lowest Used Price: $6.48* Usually ships in 24 hours* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Provides information on the physical characteristics, behavior, habits, and relatives of the largest meat-eating dinosaur known as Tyrannosaurus rex. |
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By Lois G. Grambling
Troll Communications Hardcover (32 pages; 1)
 | List Price: $15.95* Lowest New Price: $49.95* Lowest Used Price: $6.29* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: A boy comes up with many creative reasons why a Tyrannosaurus rex would be a good and helpful pet to have. |
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By John Horner
Knopf Books for Young Readers Released: 1995-03-07 Hardcover (36 pages; 1)
 | List Price: $7.99* Lowest New Price: $137.56* Lowest Used Price: $6.35* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Photographed in full color. "With both excitement and deliberate care, a
paleontologist and a science journalist describe the discovery and excavation
of the first complete Tyrannosaurus rex skeleton ever found. The book has a
bright and clear design with double-page spreads and lots of color photographs,
diagrams, and boxed insets to encourage browsers. Of course, dinophiles will
pore over every detail."--Booklist.
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By Elaine Landau
Children's Press(CT) Paperback (47 pages; 1)
 | List Price: $6.95* Lowest New Price: $3.14* Lowest Used Price: $2.61* Usually ships in 24 hours* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Describes the characteristics and habits of the massive flesh-eating dinosaur, as well as theories about why it became extinct. |
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By Steve Fiffer
W. H. Freeman Paperback (272 pages)
 | Lowest New Price: $3.88* Lowest Used Price: $0.01* Usually ships in 24 hours* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Over 65 million years ago in what is now South Dakota, a battle-scarred Tyrannosaurus rex matriarch—perhaps mortally wounded in a ferocious fight—fell into the riverbed and died. In 1990 her skeleton was found, virtually complete, in what many have called the most spectacular dinosaur fossil discovery to date.
And then another battle began - a "survival of the fittest" free-for-all involving commercial dinosaur hunters, gun-toting law officers, an ambitious federal prosecutor, a Native American tribe, jealous academics, an enterprising auction house, major museums, and corporate giants, all making their claim for the dinosaur named Sue. Before it was over, there would be claims and counterclaims; charges of checkbook-polluted science, criminal larceny, and vengeful prosecutions; and devastating prison terms. And the gavel would come down on the largest-ever ($8.36 million) auction price tag for a fossil, paid by Chicago’s Field Museum, with help from Disney and McDonald’s.
Capturing the whole range of characters and issues embroiled in the fight for Sue, author Steve Fiffer communicates both the excitement over Sue’s discovery and the motivations, maneuverings, and absurdities of the various forces attempting to control her destiny.
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By Stephen W. Templar
Morgan Templar Paperback (106 pages)
 | List Price: $11.99* Lowest New Price: $11.99* Lowest Used Price: $3.99* Usually ships in 24 hours* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: The selection of a rifle for use in the sporting pursuit of Tyrannosaurus rex, a rexGun, is so deserving of thoughtful assessment and requires such careful consideration because your life, and the lives of those in your hunting party, may very well depend upon it. The question of how much gun is truly enough to provide a reasonable chance of success against a T. rex is critically important. This work examines the history, use, and terminal ballistics of bullets, cartridges, and rifles suitable for use hunting T. rex. It offers advice and unique formulae that can aid a hunter in the selection of appropriate cartridges and bullets. And, it explores T. rex in ways never before seen in print. Included are numerous photographs and detailed tables. And, to aid with shot placement, a Target Areas Diagram of a Tyrannosaurus rex. Hunters, gun enthusiasts, and dinosaur fans will all find rexGun intriguing, exciting, and hard to put down. |
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By Lidia Di Blasi
Hardcover (24 pages)
 | List Price: $10.95* Lowest New Price: $47.69* Lowest Used Price: $3.18* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Dinosaurs lived on earth long before the first humans, but by examining the bones of great creatures like Tyrannosaurus Rex, scientists have learned much about the way they lived. This beautifully illustrated books tells children about them. The impressively illustrated titles in this fine series will appeal to very young children. The books present highly detailed, naturalistic animal illustrations and simple storylines that preschoolers can easily comprehend. Like all previously published books in this series, this new title has full-color, full-page illustrations on every large page. The story makes a wonderful introduction to the wonders of nature for little girls and boys who are curious about the habits of different animals. The pages are sturdy cardboard, designed to withstand rough treatment from small hands. |
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By John Sibbick
Chronicle Books Hardcover
| List Price: $14.95* Lowest New Price: $11.51* Lowest Used Price: $0.44* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Fascinating facts and incredible full-color pop-ups, including a 24-inch long pop-up dinosaur, bring Tyrannosaurus Rex back to life. From a brief history of dinosaurs in general to specific facts about Tyrannosaurus Rex, readers will get to know the Tyrant King from the inside out. Full color. |
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By John Horner
Scholastic Inc Paperback (36 pages)
| Lowest New Price: $3.75* Lowest Used Price: $0.01* *(As of 06:36 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: The remarkable story of the discovery of the first complete Tyrannosaurus rex skeleton. |
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