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Scientists Discovered a Tiny, Ancient Shark Fossil Deep Inside the World's Longest Cave SystemThe fossil was found in the Ste. Genevieve Formation, which dates to approximately 335 to 340 million years ago. It was ...
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350-Million-Year-Old Shark Fossil With Unique Tooth Arrangement Unearthed From Inside World's Longest Cave SystemMillion-Year-Old Shark Fossil With Unique Tooth Arrangement Unearthed From Inside World's Longest Cave System The collection ...
Scientists have uncovered a previously unknown species of extinct shark deep within the labyrinth of Mammoth Cave in Kentucky ...
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