“The fossil discoveries in Mammoth Cave continue to reveal a wealth of new information about ancient shark species,” said Superintendent Barclay Trimble. “Researchers and volunteers ...

Researchers have discovered a new-to-science species of ancient shark during an ongoing paleontological resource inventory at Mammoth Cave National Park. The new species of obruchevodid petalodont ...

Credit: NPS Illustration / Benji Paysnoe Researchers collecting fossils deep inside Kentucky's Mammoth Cave have uncovered the remains of a never-before-seen species — an absolutely tiny ancient ...