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340-million-year-old 'nail tooth' shark found deep inside Mammoth Cave in KentuckyScientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...
IFLScience on MSN6d
New 340-Million-Year-Old “Chipmunk Shark” Species Discovered In Mammoth Cave National ParkWhat kind of creatures were kicking about in the oceans 340 million years ago? We’ve now got a slightly clearer picture ...
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