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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
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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 Postersby AllPosters
Tyrannosaurus rex Toys
Papo Released: 2008-08-21 Toy
 | List Price: $21.99 Lowest New Price: $14.90 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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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Schleich Released: 2008-09-15 Toy
 | List Price: $17.99 Lowest New Price: $9.53 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 14:27 Pacific 3 Jul 2009 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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Schleich Released: 2008-09-15 Toy
 | List Price: $17.99 Lowest New Price: $11.09 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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: Each model comes equipped with a booklet containing the scientific data on each of the saurians and a figure of a human in the same scale, to facilitate comparison of size. Sculpted in close cooperation with the Natural Museum of the Humboldt-University Berlin.Schleich Moving Tyrannosaurus. Hand-painted Replica Saurus measures: 12.0"W x 6.1"H x 4.2"D. Scale 1:40 |
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Educational Insights Released: 2008-02-22 Toy
 | List Price: $99.99 Lowest New Price: $70.00 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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 Toy
 | List Price: $8.00 Lowest New Price: $2.89 (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | - Schleich Junior Tyrannosaurus T Rex Model Dinosaur Toy
- Age 3+
Product Description: This savage Tyrannosaurus by Schleich is on the prowl for supper. Other dinosaurs should watch out for this Tyrannosaurus, he's very hungry. This is a great figure to have in any collection! From the Manufacturer: As a manufacturer of toys we carry a special responsibility towards parents and children. It is our aim to constantly live up to the image of a developer and supplier of top quality products with an educational aspect. Our products are being developed with the assistance of parents, teachers and children and are therefore especially designed for children's hands. |
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Safari Released: 2007-07-01 Toy
 | List Price: $15.99 Lowest New Price: $5.94 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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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Educational Insights Released: 2009-03-18 Toy
 | List Price: $19.99 Lowest New Price: $13.99 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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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Papo Toy
 | Lowest New Price: $19.95 (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | Product Description: Allosaurus |
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Boley Toy
 | Lowest New Price: $4.99 (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | - 10 inches long
- Durable plastic
Product Description: This authentically detailed model of a Tyrannosaurus Rex is 10-inches long and made of durable plastic. |
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Dinosaur Finished Model Statue Toy
 | Lowest New Price: $99.95 (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | - Tyrannosaurus Finished Model Statue
- Scientifically Accurate
- Ages 12+
Product Description: This handsome piece is superbly detailed from polyresin and is mounted on a solid wood base. Hand-painted with an acrylic resin, it has a very attractive and natural-looking finish. A solid brass plaque engraved with the name of the dinosaur accents the base. The Tyrannosaurus statue is scientifically accurate and makes a great gift. |
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Tyrannosaurus rex Books
By Elaine Landau
Children's Press(CT) Paperback (47 pages; 1)
 | List Price: $6.95 Lowest New Price: $3.13 Lowest Used Price: $2.66 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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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Indiana University Press Hardcover (456 pages)
 | List Price: $49.95 Lowest New Price: $31.32 Lowest Used Price: $31.89 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | 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 John Horner
Knopf Books for Young Readers Released: 1995-03-07 Hardcover (36 pages; 1)
 | List Price: $7.99 Lowest New Price: $43.65 Lowest Used Price: $9.98 (As of 14:27 Pacific 3 Jul 2009 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 Brooke Hartzog
PowerKids Press Library Binding (24 pages; 1)
 | List Price: $21.25 Lowest New Price: $21.25 Lowest Used Price: $7.00 Usually ships in 2 to 4 weeks (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | Product Description: Recounts the life and fossil discoveries of Barnum Brown, the paleontologist who, in 1908, discovered the largest and most complete Tyrannosaurus skeleton that had ever been found. |
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By Daniel Cohen
Capstone Press Paperback (24 pages; 1)
 | List Price: $6.95 Lowest New Price: $4.03 Lowest Used Price: $5.22 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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 Steve Fiffer
W. H. Freeman Paperback (272 pages)
 | Lowest New Price: $2.34 Lowest Used Price: $0.12 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 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 Joanne Mattern
Weekly Reader Early Learning Library Paperback (24 pages; 1)
 | List Price: $5.95 Lowest New Price: $1.81 Lowest Used Price: $43.81 Usually ships in 1 to 3 weeks (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here |
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By Lois G. Grambling
Troll Communications Hardcover (32 pages; 1)
 | List Price: $15.95 Lowest New Price: $35.00 Lowest Used Price: $11.46 (As of 14:27 Pacific 3 Jul 2009 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 Simon Armitage
Knopf Released: 2008-09-02 Hardcover (80 pages)
 | List Price: $25.00 Lowest New Price: $12.50 Lowest Used Price: $10.27 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | Product Description: From one of the most important British poets at work today comes a brilliant new collection that meditates on human battles past and present, on youth and age, on monsters and underdogs, on the life of nations and the individual heart.
In Tyrannosaurus Rex Versus the Corduroy Kid, we meet a writer who speaks naturally, and with frankness and restraint, for his culture. Armitage witnesses the pathos of women at work in the mock-Tudor Merrie England coffeehouses and gives us a backstage take on the world of Oliver Twist and the Artful Dodger. He makes a gift to the reader of the sympathy and misery and grit buried in his nation’s collective consciousness: in the distant battle depicted in the Bayeux Tapestry and in the daily lives and petty crimes of ordinary people. In poems that are sometimes lyrical, sometimes brash and comic, and full of living voices, the extraordinary and the mythic grow out of the ordinary, and figures of diminishment and tragedy shine forth as mysterious, uncelebrated exemplars. Armitage tells us ruefully that “the future was a beautiful place, once,” and with a steady eye out for the odd mystery or joyous scrap of experience, examines our complex present instead.
AFTER THE HURRICANE
Some storm that was, to shoulder-charge the wall in my old man’s back yard and knock it flat. But the greenhouse is sound, the chapel of glass we glazed one morning. We glazed with morning. And so is the hut. And so is the shed.
We sit in the ruins and drink. He smokes. Back when, we would have built that wall again. But today it’s enough to drink and smoke amongst mortar and bricks, here at the empire’s end. |
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By Helen Frost
Capstone Press Paperback (24 pages; 1)
 | List Price: $7.95 Lowest New Price: $3.14 Lowest Used Price: $4.20 Usually ships in 24 hours (As of 14:27 Pacific 3 Jul 2009 More Info)
Click Here | Product Description: Simple text and illustrations provide information on the physical characteristics, behavior, and habits of the dinosaur known as Tyrannosaurus rex. Written in English and Spanish. |
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