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Agate Fossil Beds National MonumentNiobrara River and bluffs
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Agate Fossil Beds National Monument
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Map of Agate Fossil Beds National Monument
Dinohyus skull in diorama  

Did You Know?
One of the more menacing beasts found in the quarries at Agate Fossil Beds was the Dinohyus. This big-toothed animal was a scavenger credited with tearing apart the rhino skeletons that ended up in the waterhole bonebed. Although not related to the pig family, his nickname was “Terrible Pig.”
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Last Updated: July 25, 2006 at 00:22 EST