Megapharanaspis nedini is a small (maximally ) trilobite of the superfamily Emuelloidea, within which it occupies a family on its own. Its fossils have been found in the Lower Cambrian of South-Australia.
The genus name composed of the Greek üÃÂóñà(mega), meaning great, pharangos, meaning gully, and á¼ÂÃÂÃÂïà(aspis) shield, referencing Big Gully on Kangaroo Island, the only known site where fossils of Megapharanaspis were collected. The species epithet nedini is in honor of Dr. Chris Nedin.