Steven Phillipe was doing some landscaping when he spotted something instantly recognizable but completely baffling.

The shark’s distinctive teeth were identified as a new-to-science species during a Paleontological Resource Inventory at Mammoth Cave National Park in southern Kentucky this year. The inventory ...

Among seashells, shark teeth, and sea creatures, collectors can add sea glass to the list of items to search for along Florida's shores. Here's where ...

Along with teeth, the existing fossil record includes parts of giant shark skeletons from the same period, including a 36-foot-long (11-meter-long) section of a fossilized spinal column from ...