According to a new discovery, what is now known as Kentucky was once home to sharks,media reported. Researchers have found the remains of up to 20 prehistoric sharks in Kentucky’s Mammoth Cave National Park. Among these discoveries was a giant shark’s head, which was preserved 330 million years ago, in the cave’s walls, and its teeth protruded from the limestone.
In the very distant past of the Earth, much of the continent, now known as North America, was covered by the ocean. These oceans are home to large sharks, but over time they die naturally and are covered in sediment. During this great change, the ocean receded and sediments turned into limestone, and the cave system formed.
This means that the fossil remains of these prehistoric sharks can be found on cave walls. The newly discovered shark remains date back to the late Mississippi, giving more insight into the presence of sharks in the long river on Earth.
Although it is not uncommon to find preserved shark teeth, cartilage fossils are rarely found because of their soft nature. Scientists studying the new discovery found that part of the shark’s head is preserved in the cave walls, not just in the teeth but also in the chin and chin.
The remains were first discovered by scientists in mammoth caves, CNN reported. Paleontologist John-Paul Hodnett visited the site in person last November after touching the images of the discoveries, where he discovered not only the shark’s teeth but also parts of its head.