Fossilized head of 340 million-year-old shark found in Kentucky’s Mammoth Cave By Lee Brown January 30, 2020 | 11:21am Matt Cecil, Getty (inset) Scientists excavating a cave in Kentucky were stunned to find the fossilized head of a huge shark — one thought to be up to 340 million years old, according to a report. Rick Olson and Rick Toomey first came across the remains while mapping the world’s longest cave system, the 400-mile Mammoth Cave National Park, the Louisville Courier Journal said. Their findings reached paleontologist John-Paul Hodnett, who joined them after finding a lower jaw, skull cartilage and several teeth from a shark the size of a Great White, possibly up to 21-feet long. “I wasn’t exactly sure what I was going to see in the cave,” Hodnett told the Courier Journal. “When we got to our target specimen my mind was blown.” The fossilized remains of a...