Cow & Frilled Sharks
Size Range – 4ft-15ft
They only have one dorsal fin; they have six or seven gill slits instead of the normal five.
Cow Sharks are known to have a stout and stocky build, while Frilled Sharks are very eel-like.
Hexanchiformes are the most primitive of sharks. In fact, Cow Sharks are considered the most prehistoric-esque of all living sharks and are not believed to have adapted much at all from their resemblance to ancient forms.
They live in the deep parts of the Indian, Pacific and Atlantic Ocean.
While the group “Cow Sharks” can be found in tropical and temperate waters.
Bony Fish, Squid, other Sharks, Rays, Crab, and Shrimp.
Little is known about this order in the general sense because they are hard to track and study.