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Allosaurus
"Different Reptile"
Order: Saurischia
Suborder: Theropoda
Infraorder: Carnosauria
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Physical Characteristics
- 35' in length
- 1-1/2 Tons
- Powerful hind limbs
- Three fingered hands
- Bipedal
- Serrated teeth
- Bony ridge from snout to between eyes where it ended
as a triangular horn.
Fossil Sites
- Rocky Mountains, U.S.A., Tanzania, Australia
Geologic Age
- Late Jurassic/Early Cretaceous
Paleo Notes
This carnivorous dinosaur probably hunted in packs.

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