The Stethacanthus lived about 360 million to ... the Edestus is another prehistoric shark that looks quite… odd. Also called the scissor-toothed shark, the Edestus had curved jaws that resulted ...

Megalodon may be the most well-known prehistoric shark, but it is far from the ... of small horns on its head while another species, Stethacanthus, had a dorsal fin shaped a lot like an iron.