Pemphigaspis

Pemphigaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period.^[1]

Pemphigaspis Temporal range: Dresbachian[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Ptychopariida
Family:	Catillicephalidae
Genus:	Pemphigaspis