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340-Million-Year-Old Shark Fossil Discovered in America’s Largest Cave SystemA groundbreaking discovery in Mammoth Cave reveals a new species of ancient shark, offering a glimpse into the diverse marine life that thrived 340 million years ago.
A newly identified species of ancient shark has been discovered at Mammoth Cave National Park, marking another significant ...
A newly identified ancient shark species, Macadens olsoni, has been at Mammoth Cave National Park. The National Park Service ...
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