Complete Elrathia Kingii trilobite fossil specimen on top a partial, Utah

Description

A complete black Elrathia Kingii trilobite fossil atop a partial Elrathia Kingii trilobite, on dark grey shale rock matrix This was found at A New Dig Fossil Quarry in the Wheeler Shale Formation of western Utah .  This trilobite is over half a billion years old and measures 21mm by 17mm and the rock measures .5 by 2 inches. This well preserved trilobite is a perfect addition to any fossil or rock collection or would an interesting piece for educational purposes. Thank you!