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Allosaurus was the biggest carnivorous dinosaur of the Jurassic period. No other predatory dinosaur had ever grown so large and none would surpass it in size for fifty million years. A fossil find in Utah has raised the possibility that Allosaurus was a pack hunter.
A fossil find in Utah has raised the possibility that Allosaurus was a pack hunter.
Genus Name: Allosaurus ("different lizard")
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