| Edestus giganteus|
Fossil range: Late Carboniferous
| Scientific classification
Little is known about E. giganteus apart from a single set of teeth currently housed in the American Museum of Natural History in New York City. Paleontological studies suggest that E. giganteus, unlike modern-day sharks, did not shed worn or broken teeth. Rather, it continued growing new teeth and gums near the back of the mouth, eventually pushing the older teeth and gums forward, until they protruded from the mouth. It is not clear what function the strange teeth performed.
E. giganteus grew to about the size of the modern-day great white shark, thus probably making it one of the top sea predators of its day. As with all other members of the genus, it is not clear how E. giganteus caught or ate its prey, however.