Human JAWS developed from this prehistoric armoured fish that dominated oceans 400 million years ago

This illustration shows Qilinyu, a 423-million-year-old fish from the Kuanti Formation [PHOTO: COURTESY]

Researchers have linked the development of the human jaw to a 423-million-year-old armoured fish that skulked the bottom of the oceans.

Paleontologists from China and Sweden said Thursday that our jaws can be traced back to these extinct armored beasts called "Qilinyu".