Fadenia
In Depth Fadenia is a genus of cartilaginous fish that belongs within the Eugeneodontida, a group that contains very bizarre forms such as Edestus, Helicoprion and Sarcoprion. Although popularly dubbed sharks, the eugeneodonts are usually placed within the Holocephali, a group distinct from sharks (that are classed within the Elasmobranchii) that also includes the cartilaginous … Read more