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5th New Shark Species Discovered Inside Mammoth Cave

MAMMOTH CAVE NATIONAL PARK, JUL 24 – Researchers identified Macadens olsoni, a small shark with curved teeth for crushing prey, among over 40 fossil shark species discovered in recent months at Mammoth Cave.

  • On Thursday, Mammoth Cave National Park announced the discovery of Macadens olsoni at the park.
  • More than 40 fossil shark species were identified in the past 10 months, Mammoth Cave National Park officials said, as researchers pursued extensive fossil studies.
  • Less than one foot long, likely fed on mollusks and worms, and park officials said it has a unique curved row of teeth for crushing small sea creatures.
  • Named in honor of Mammoth Cave and Rickard Olson, while the discovery highlights the park's history with five shark species new to science was noted.
  • The discovery underscores `the critical role of paleontological research` in national parks, superintendent Barclay Trimble said, adding it is `a remarkable addition to our understanding of ancient marine life`.
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New species of ancient shark discovered at Mammoth Cave National Park

A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said.

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WCLU Radio broke the news in on Thursday, July 24, 2025.
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