What is Cephalaspid?
[[File:Ostracoderm digital recreation..jpg|thumb|Restoration of ''[[Cephalaspis]]'']] The '''cephalaspids''' ('''Cephalaspidida''') are an extinct group of fish from the [[Devonian]] period which was 419.2 to 358.9 million years ago. Cephalaspids had no [[Jawless fish|jaws]]. Also these fish have plates on their heads to protect them. == Taxonomy == * †[[Cephalaspidae]] * †''[[Superciliaspis]]'' {{Biology-stub}} [[Category:Extinct fish]]