A fossilized skull unearthed in Montana is the oldest horned dinosaur on record in North America, a new study finds.
The rest of the story
livescience.com
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Photos: Oldest Known Horned Dinosaur in North America
A fossilized skull unearthed in Montana is the oldest horned dinosaur on record in North America, a new study finds.
The rest of the story
livescience.com
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