Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

Clavusodens mcginnisi, or McGinnis's nail-tooth, was found fossilized in Mammoth Cave, the world's longest cave system. The fossilized teeth were discovered in the Ste. Genevieve Formation, a layer of ...

Paleontologists at Mammoth Cave National Park have unearthed an ancient shark species previously unknown to science.

An ongoing Paleontological Resource Inventory discovered the new species, called Clavusodens mcginnisi, while collecting ...

In fact, it was the shape of their back teeth that lent themselves to the shark’s name: Clavusodens mcginnisi, or “McGinnis’ nail tooth.” “McGinnis” was included in honor of David McGinnis, a retired ...

It was identified from a collection of small fossilized teeth found within the Ste. Genevieve Formation, a layer of limestone ...

Deep within Mammoth Cave, the world’s longest cave system, paleontologists have uncovered the remains of a never-before-seen ...

It's called Clavusodens mcginnisi.Here are two other recent new shark discoveries found in Mammoth Cave.The shark is a species of obruchevodid petalodont.The "mcginnis" part of the name is from ...

McGinnis' nail tooth (Clavusodens mcginnisi) depicted hunting a crustation in a reef-like crinoidal forest during the Carboniferous period. | Credit: NPS Illustration / Benji Paysnoe Researchers ...