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Allosaurus
Click here for more Allosaurus Pictures
Allosaurus was a common carnivorous (meat-eating) dinosaur
in North America during the late Jurassic and early
Cretaceous period,
approximately 154 to 135 million
years ago. Allosaurus
fossils
have also been found in Africa and
Australia.
Allosaurus was up to 39 feet (11.9 meters) long,
and weighed approximately 1.7 tons.
Some scientists believe Allosaurus was too heavy to chase down prey, and
therefore was probably a scavenger. However, others believe that Allosaurus
may have been quite agile, and could even have hunted in packs to bring down
giant herbivores (plant-eaters) such as
Apatosaurus or
Diplodocus.
The first Allosaurus
fossil
was incorrectly described as a "petrified horse hoof".
In fact, it was a caudal vertebra (tail bone) of this dinosaur, although
it was not recognized as such at the time.
Using much more material, including a partial skeleton,
Othniel C. Marsh
published the first description of Allosaurus in 1877.
One of the most important Allosaurus specimens found, was
discovered in
Wyoming,
in 1991.
This animal, which has been nicknamed "Big Al", was actually smaller than
average for its particular species of Allosaurus (it was probably not fully grown),
and even though many bones showed signs of infection (which may have contributed to the animal's death),
was very important because the skeleton was 95% complete. Furthermore, the same team which discovered
"Big Al", also subsequently discovered a second well-preserved specimen, which has been nicknamed
"Big Al Two".
The discovery, and possible life-story of "Big Al", served as inspiration
for a special episode of the BBC/Discovery TV series, Walking With Dinosaurs,
entitled "The Ballad of Big Al".
Allosaurus has been designated the official state
fossil of
Utah,
since
1988.
Allosaurus Skeleton Skull, Jaws and Teeth, against a Black Background
Photographic Print
Edwards, Jason
Buy at AllPosters.com

Allosaurus was a carnivore (meat-eater) that lived from 154 to 135 million years ago

Related Information & Resources
See Also

Allosaurus Facts
Here is a summary of some of the key facts about Allosaurus:
- Allosaurus was a genus of dinosaur.
- "Allosaurus" means "different lizard" or "strange lizard". This name was chosen by Othniel C. Marsh in 1877.
- Allosaurus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Allosaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
- Allosaurus was a Theropod - a member of a group of related bipedal dinosaurs that included the ancestors of birds (although Allosaurus was not itself an ancestor of birds).
- Allosaurus lived between about 154 million years ago and 135 million years ago, during the late Jurassic and early Cretaceous periods.
- Allosaurus lived in North America, Africa and Australia.
- Allosaurus was a carnivore (meat-eater).
- Some scientists think that Allosaurus was probably a scavenger, but others think it was an active predator. There is even possibility that Allosaurus may have been a pack hunting animal, with individuals working together to bring down prey.
- Allosaurus was about 39 feet (11.9 meters) long.
- Allosaurus weighed about 1.7 tons.
- Allosaurus is the official state fossil of Utah.
Allosaurus Pictures and Posters
by AllPosters
Here are some Allosaurus 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).
Allosaurus 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: $14.99* Lowest New Price: $10.98* Lowest Used Price: $9.88* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 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: With horns above its eyes and claws on its hands, Allosaurus would make a better ally than enemy.Another meat-eating dinosaur, Allosaurus had a unique skeleton. Instead of having ribs that were attached to other bones in its body, this dinosaur had ribs that were attached to its skin. Its vertebrae were different too; the bones in its back were bulky and heavy. Standing at a height of over sixteen feet and weighing over one ton, this predator was the biggest carnivore around. Even though it had short arms, its hands had sharp claws for catching plant-eating dinosaurs. Often, Allosaurus would hunt together in groups, making it easier to take down their prey. Living into its twenties, Allosaurus was an intelligent and fierce predator. Fun Facts: As a teenager, Allosaurus could gain as much as one tenth its adult body weight. Zoological Name:Allosaurus Conservation Status: Extinct Primary Habitat: Forest Global Home: North America and Australia Scale: 1:40 |
|
Schleich Toy
 | List Price: $8.00* Lowest New Price: $5.06* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - Allosaurus would make a better ally than enemy
- High quality and hand painted Allosaurus figure
- A wonderful addition to your dinosaur collection
Product Description: With horns above its eyes and claws on its hands, Allosaurus would make a better ally than enemy.Another meat-eating dinosaur, Allosaurus had a unique skeleton. Instead of having ribs that were attached to other bones in its body, this dinosaur had ribs that were attached to its skin. Its vertebrae were different too; the bones in its back were bulky and heavy. Standing at a height of over sixteen feet and weighing over one ton, this predator was the biggest carnivore around. Even though it had short arms, its hands had sharp claws for catching plant-eating dinosaurs. Often, Allosaurus would hunt together in groups, making it easier to take down their prey. Living into its twenties, Allosaurus was an intelligent and fierce predator. Fun Facts: As a teenager, Allosaurus could gain as much as one tenth its adult body weight. Zoological Name: Allosaurus Conservation Status:Extinct Primary Habitat: Forest Global Home: North America and Australia |
|
Papo Toy
 | Lowest New Price: $15.66* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - Papo is a French company that makes high quality plastic toys sized perfectly for little hands and styled authentically for adults.
- Made of durable synthetic material. Hand Painted.
Product Description: Allosaurus |
|
Safari Toy
 | List Price: $10.00* Lowest New Price: $6.14* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - These award winning dinosaur replicas are authenticated by the paleontologists of the Carnegie museum of natural history
- The scale of these dinos are 1:20 -1:40
- All our products are phthalate-free and thoroughly safety tested to safeguard your child's health
Product Description: For over 25 years, Safari Ltd has been proud to provide this premier line of scale model, dinosaur collectibles. These award winning dinosaur replicas are authenticated by the paleontologists of the Carnegie Museum of Natural History, who houses the largest collection of dinosaur fossils in the world. Each Carnegie dinosaur can have up to 25 steps of hand painting to ensure the highest quality in the world marketplace. The scale of these dinos are either 1:20 or 1:40. Detailed educational information in 5 languages are provided with each replica. All our products are phthalate-free and thoroughly safety tested to safeguard your child's health. Safari Ltd takes pride in providing breathtaking, innovative and value priced figures for now over 3 generations. Each January, Safari Ltd introduces 2 new Carnegie models to encourage the collectibility of such an intriguing line. |
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Discovery Post Toy
 | List Price: $10.99* Lowest New Price: $6.50* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - Collectible, safe wooden magnet and stand
- 8-Page activity booklet
- Collect, share, trade
|
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Schleich Toy
 | Lowest New Price: $7.10* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: Approximately 5" long. |
|
Papo Toy
 | List Price: $13.99* Lowest New Price: $9.84* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - An older design with a new color
- Hinged jaw so his mouth opens and closes
- Realistic detailing
Product Description: The Papo toy line features beatifully crafted figurines and animals. Papo toys come in a wide variety of colors, all hand painted and bursting with imagination. We carry a wide selection for hours of play. Scale 1:20 True to life modeling. Meticulously hand painted figurines. |
|
Safari Ltd Toy
 | List Price: $8.00* Lowest New Price: $5.19* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - High quality, low cost and designed for play, collecting or education.
Product Description: Dinosaurs that children love most in a variety of fiercely action packed poses. Each dinosaur replica is amazingly detailed, hand painted for realism and designed to stimulate the imagination. This Wild SafariĀ® Dino collection has all the favorites including the Tyrannosaurus rex, Triceratops, Brachiosaurus and many more. All our figures are sculpted by experts which ensures authenticity. By providing educational information in five languages, we encourage children to learn about these ancient extinct creatures that once roamed our earth. All our products are phthalate-free and thoroughly safety tested to safeguard your child's health. Safari Ltd takes pride in providing breathtaking, innovative and value priced figures for now over three generations. |
|
Papo Released: 2008-08-21 Toy
 | List Price: $23.99* Lowest New Price: $16.99* Lowest Used Price: $19.24* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - Papo Spinosaurus is 6.5" tall
- It has an articulated jaw
- Mix and match with other Papo dinosaurs
Product Description: The Papo toy line features beatifully crafted figurines and animals. Papo toys come in a wide variety of colors, all hand painted and bursting with imagination. We carry a wide selection for hours of play. Scale 1:20 True to life modeling. Meticulously hand painted figurines. |
|
Safari Toy
 | List Price: $16.00* Lowest New Price: $10.47* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | - These award winning dinosaur replicas are authenticated by the paleontologists of the Carnegie museum
- The scale of these dinos are 1:20 -1:40
- All our products are phthalate-free and thoroughly safety tested to safeguard your child's health
Product Description: For over 25 years, Safari Ltd has been proud to provide this premier line of scale model, dinosaur collectibles. These award winning dinosaur replicas are authenticated by the paleontologists of the Carnegie Museum of Natural History, who houses the largest collection of dinosaur fossils in the world. Each Carnegie dinosaur can have up to 25 steps of hand painting to ensure the highest quality in the world marketplace. The scale of these dinos are either 1:20 or 1:40. Detailed educational information in 5 languages are provided with each replica. All our products are phthalate-free and thoroughly safety tested to safeguard your child's health. Safari Ltd takes pride in providing breathtaking, innovative and value priced figures for now over 3 generations. Each January, Safari Ltd introduces 2 new Carnegie models to encourage the collectibility of such an intriguing line. |
|
Allosaurus 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.
By Stephen Cole
Dutton Juvenile Paperback (48 pages)
 | List Price: $7.99* Lowest New Price: $155.92* Lowest Used Price: $1.57* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: Allosaurus! The Life and Death of Big Al is the saga of a male Allosaurus whose remains were recently discovered in Wyoming. Remarkably, his skeleton was found intact, allowing scientists to re-create the events of his life. In a lively mix of science and stunning visual images, Allosaurus follows the Allosaurus's tough life from his early days trying to beat out bigger dinosaurs for food to the fierce battles he fought as a teen. Sidebars throughout the book reveal how paleontologists solved the mysteries revealed by his bones. Allosaurus will be featured on a Discovery Channel(r) special in late spring 2001. |
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By Joanne Mattern
Weekly Reader Early Learning Library Paperback (24 pages)
 | List Price: $5.95* Lowest New Price: $5.17* Lowest Used Price: $2.16* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here |
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By Helen Frost
Capstone Press(MN) Paperback (24 pages)
 | List Price: $6.95* Lowest New Price: $3.62* Lowest Used Price: $1.27* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here |
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By Stephen Penner
Nimble Books Paperback (54 pages)
 | List Price: $14.99* Lowest New Price: $14.98* Lowest Used Price: $47.31* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: In this second installment of the series, world-famous paleontologist Professor Reginald Barrister and third-grade dinosaur experts Nate and Emily travel back to dinosaur times to investigate a mysterious Allosaurus fossil. The fossil shows the dominant predator of Jurassic North America with large armor plates across its back, but Allosaurus didn't have armor--or did it? Professor Barrister, Nate and Emily will have to brave gigantic sauropods, spike wielding herbivores, and of course the monstrous Allosaurus to solve the mystery! Stephen Penner is a children's book author and illustrator who lives near Seattle with his wife, young son and even younger daughter. He got the idea for "Professor Barrister's Dinosaur Mysteries" from a game he made up with his dinosaur-loving son. When not writing and drawing, he enjoys painting, reading and traveling. |
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By Frost
Capstone Press Library Binding (24 pages)
 | List Price: $24.65* Lowest New Price: $16.49* Lowest Used Price: $4.99* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: Provides information on the physical characteristics, behavior, and habits of the dinosaur known as allosaurus. |
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By Daniel Cohen
Capstone Press(MN) Paperback (24 pages)
 | List Price: $6.95* Lowest New Price: $3.97* Lowest Used Price: $0.09* Usually ships in 1 to 3 weeks* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: Briefly describes how this dinosaur looked, what it ate, where it lived, and how scientists learned about it. |
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By Marco Signore
Abbeville Kids Hardcover (64 pages)
 | List Price: $15.95* Lowest New Price: $9.05* Lowest Used Price: $8.44* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here | Product Description: In Abbeville's new "Dinosaurs" series, a talented artist and a noted paleontologist have teamed up to re-create the vanished world of the dinosaurs in comic-book form. Each volume in the series tells the action-packed yet scientifically accurate story of a different dinosaur living in its particular geological time and place. At the back of each volume, meanwhile, are several short essays, abundantly illustrated with original drawings and photographs of fossils, that explain more about the creatures and geographical settings encountered in the comic. These essays, written in terms that kids will understand, reveal not only what paleontologists have learned about the age of the dinosaurs, but also how they have learned it, by examining fossils and other types of evidence. "The Hunting Pack", the third title in the series, depicts life in a herd of Allosaurus in the late Jurassic period, 150 million years ago. As these powerful predators hunt herbivores like Camarasaurus and Stegosaurus and look after their offspring, an aggressive young Allosaurus challenges the battle-scarred dominant male for leadership of the pack. The essays at the back of the book explore the comic's remarkable setting, the ancient ecosystem of the Morrison Formation, located in what is today the western United States and Canada. |
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By Mike Brown
Gareth Stevens Pub Library Binding (24 pages)
 | List Price: $19.93* Lowest New Price: $24.95* Lowest Used Price: $0.16* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here |
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By Michael P. Goecke
Buddy Books Library Binding (32 pages)
 | List Price: $27.07* Lowest New Price: $23.07* Lowest Used Price: $3.98* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here |
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By Dougal Dixon
Picture Window Books Library Binding (24 pages)
 | List Price: $23.93* Lowest New Price: $17.92* Lowest Used Price: $4.18* Usually ships in 24 hours* *(As of 17:48 Pacific 3 Feb 2012 More Info)
Click Here |
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