2.08 inch Fossil White Shark Tooth (Carcharodon hastalis) from Sharktooth Hill, California

The Carcharodon hastalis is part of the group of Lamniformes, which are an order of sharks commonly known as white/mackerel sharks (which may also refer specifically to the family Lamnidae). It includes some of the most familiar species of sharks, such as the great white shark, as well as more unusual representatives, such as the goblin shark and the megamouth shark.

Members of the order are distinguished by possessing two dorsal fins, an anal fin, five gill slits, eyes without extra eyelid membranes, and a mouth extending behind the eyes.