Extinct genus of ray-finned fishes
 ;templatestyles src="Template:Taxobox/core/styles.css" / ;
Bluefieldius is an extinct genus of marine ray-finned fish that lived during the Late Mississippian (Early Carboniferous) epoch in what is now West Virginia, United States. It is known from a single fossil collected from the late Serpukhovian or early Viséan Bluefield Formation. The type and only species (monotypy) is "Bluefieldius mercerensis".
It has a "palaeoniscoid" body plan, although as that order is thought to be paraphyletic, it was described as an indeterminate actinopterygian.
References.
 ;templatestyles src="Reflist/styles.css" / ;