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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: $12.48* *(As of 10:55 Pacific 8 Feb 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: True to life modeling Meticulously handpainted Made in compliance with all safety regulations Developed with the assistance of parents, teachers and children With the Schleich-S tag, symbol for the highest quality |
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Papo Toy
 | Lowest New Price: $24.99* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | Product Description: Allosaurus |
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Papo Toy
 | List Price: $19.99* Lowest New Price: $18.95* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Detailed prehistoric creature figure
- Coloring is vivid
- Has a realistic feel to the animal
Product Description: Papo is a French company that makes high quality plastic toys sized perfectly for little hands and styled authentically for adults. Hand-painted and highly detailed, the molded plastic figures. Ages 4+ |
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Schleich Toy
 | List Price: $8.00* Lowest New Price: $5.49* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Schleich Junior Allosaurus Model Dinosaur Toy
- Age 3+
Product Description: Great for Kids. Even though this item is smaller than the Schleich's original line, they are definietely not lacking the quality. What makes this item so great is the price. They make them smaller to be able to afford the whole set. This item is not only a toy, but an educational series of hand painted replicas that reveals the prehistoric world. Manufactured from a high quality vinyl (rubber), this extremely realistic piece is hand-painted, with non-toxic paint, for a natural life-like finish. |
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Safari Toy
 | List Price: $8.00* Lowest New Price: $5.90* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - The Wild Safari hand-painted, authentic, and affordable animal replicas stimulate creative play.
- A color-coded 5-language educational hang tag is included with each replica.
- Age 3+
Product Description: The Wild Safari hand-painted, authentic, and affordable dinosaur replicas stimulate creative play. Children love them for their playful poses, quality, and collectible range, as well as their educational value. A color-coded 5-language educational hang tag is included with each replica. Measures 7.5 in. L x 3.75 in. H (19 x 9.5 cm). Age 3+ |
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Safari Toy
 | List Price: $10.00* Lowest New Price: $5.99* Usually ships in 24 hours* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - 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
- 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: 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 replica measures 9.5 inches long, 4.5 inches high. |
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Bullyland green Toy
 | Lowest New Price: $26.39* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Original Bullyland Soft Play figurines are soft - they feel like the real thing!
- Made on a 1:8 Scale
- For ages 3 years and older
Product Description: Bullyland Soft Play figurines are made to feel like the real thing with realistic handpainted details. They are great for pretend play and wipe clean with a damp cloth. All Bullyland figurines and play sets are created to support the development of children's skills and imagination while having fun in a safe environment. We are proud of our extensive research and development on the dangers of PVC. We use a synthetic rubber material in order to achieve the highest possible safety standards and have banned the use of PVC in our products. |
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Fisher-Price Released: 2008-01-01 Toy
 | List Price: $11.99* Lowest New Price: $9.99* Usually ships in 24 hours* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Imagine Slasher is sneaking up on his prey ready to catch it with his sharp claws
- It's a new adventure every time you play
- Each sold separately and subject to availability
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Schleich Toy
 | Lowest New Price: $8.99* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Each Model Comes With a Booklet of Scientific Data
- Sculpted In Cooperation with the Natural Museum of the Humboldt-University Berlin.
- Measures: 10.2"W x 4.0"H x 4.0"D. Scale 1:40
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. Manufactured from a high quality vinyl (rubber), this extremely realistic piece is hand-painted, with non-toxic paint, for a natural life-like finish. |
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Fisher-Price Released: 2007-01-01 Toy
 | List Price: $17.99* *(As of 10:55 Pacific 8 Feb 2010 More Info)
Click Here | - Imaginext Dinosaurs gives pre-school boys an age-appropriate way to experience the ultimate dinosaur fantasy adventure
- Imaginext Dinosaurs takes a proven classic theme and adds a new twist
- Great details, cool designs
Product Description: Imagine ... a primitive civilization of humans and dinosaurs, living in a lush, green land. One sidethe predatorsare using up its natural resources, wiping out everything and everyone that gets in their way. The other sidethe ecovoreswant to preserve their land. And theyre willing to fight to make that happen. Will the predators succeed in destroying the land, causing their own extinction? Or will the ecovores stop the destruction and make the land a place where dinosaurs and humans can live together peacefully? In the world of Imaginext®, anything is possible! |
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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 Rob Shone
PowerKids Press Paperback (32 pages; 1)
 | List Price: $12.30* Lowest New Price: $12.30* Lowest Used Price: $31.82* Usually ships in 2 to 3 weeks* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here |
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By Darlene R. Stille
Rourke Publishing Paperback (24 pages; 1)
 | List Price: $7.95* Lowest New Price: $6.12* Lowest Used Price: $6.45* Usually ships in 24 hours* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here | - ISBN13: 9781606949054
- Notes: Brand New from Publisher. No Remainder Mark.
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By Joanne Mattern
Weekly Reader Early Learning Library Paperback (24 pages; 1)
 | List Price: $7.00* Lowest New Price: $7.00* Lowest Used Price: $25.31* Usually ships in 24 hours* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here |
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By Mike Brown
Gareth Stevens Pub Library Binding (24 pages; 1)
 | List Price: $19.93* Lowest New Price: $19.97* Lowest Used Price: $0.01* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here |
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By Gerrie McCall
Chartwell Books Hardcover (320 pages)
 | List Price: $9.99* Lowest New Price: $8.49* Lowest Used Price: $4.42* Usually ships in 2 to 5 weeks* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here |
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By Stephen Cole
Dutton Juvenile Paperback (48 pages; 1)
 | List Price: $7.99* Lowest New Price: $159.76* Lowest Used Price: $14.79* *(As of 00:52 Pacific 8 Feb 2010 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 Susan Heinrichs Gray
Child's World Hardcover (32 pages; 1)
 | List Price: $27.07* Lowest New Price: $27.06* Lowest Used Price: $10.75* Usually ships in 24 hours* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here | Product Description: Long ago, a once-mighty Allosaurus stalked the land searching for helpless prey for dinner, too sick to battle stronger dinosaurs. Millions of years later, scientists discovered the bones of this "different lizard" in Wyoming and named him Big Al. Read how Big Al helped them learn more about Allosaurus and its days on Earth. |
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By Dahl
Picture Window Books Paperback (24 pages; 1)
 | List Price: $7.95* Lowest New Price: $5.55* Lowest Used Price: $15.08* Usually ships in 24 hours* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here | Product Description: Provides information on the characteristics and life of the dinosaur known as Allosaurus. |
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By Daniel Cohen
Capstone Press Library Binding (48 pages; 1)
| List Price: $21.26* Lowest Used Price: $0.01* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here | Product Description: Describes four dinosaurs from the Jurassic period including Allosaurus, Dilophosaurus, Ceratosaurus, and Coelurus. |
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By James H Madsen
Utah Geological and Mineral Survey, Utah Dept. of Natural Resources Unknown Binding (163 pages)
| Lowest Used Price: $45.00* *(As of 00:52 Pacific 8 Feb 2010 More Info)
Click Here |
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