The Hybodus shark lived for a very long time, in various places around the world. Today, fossils have been found everywhere – and all from different eras! One of the more interesting features of ...

The Jurassic shark, Hybodus, had a pair of small horns on its head while another species, Stethacanthus, had a dorsal fin shaped a lot like an iron. Weirdest of all was probably Helicoprion ...