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Fossilized remains of 2 new shark species found in Mammoth Cave National Park

In a groundbreaking discovery, researchers at Mammoth Cave National Park have identified two previously unknown species of ancient sharks. The finding sheds new light on the prehistoric ecosystems that once thrived in the region and underscores the importance of collaborative scientific efforts in uncovering Earth’s hidden history.

The first species, named Troglocladodus trimblei, was identified through the analysis of fossilized teeth found within the geological layers of Mammoth Cave. This genus, meaning “Cave Branching Tooth,” pays tribute to park superintendent Barclay Trimble, who stumbled upon the first specimen—a single tooth—embedded in the cave walls. Remarkably, evidence of this unique shark has also been unearthed in Alabama, suggesting a broader distribution across ancient coastlines.

The second species, Glikmanius careforum, was discovered through the examination of fossilized teeth, jaws, and gills recovered from both Mammoth Cave and Alabama. Its name honors the Cave Research Foundation (CRF) for their unwavering support of research and exploration activities within the cave system.

Estimated to have measured between 10 to 12 feet (3 to 3.5 meters) in length, both shark species provide valuable insights into the ancient marine environments that existed over 325 million years ago. Their presence along the shorelines of Kentucky and Alabama paints a vivid picture of a bygone era when these regions were teeming with diverse marine life.

Superintendent Barclay Trimble expressed his gratitude for the collaborative efforts that led to the discovery, highlighting the pivotal role played by the National Park Service Paleontology Program and the University of Alabama Geological Sciences Department. This groundbreaking find underscores the importance of protecting and preserving natural wonders like Mammoth Cave National Park, which continue to yield invaluable scientific discoveries that deepen our understanding of Earth’s geological past.

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