Quadrahomagnostus

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

Quadrahomagnostus Temporal range: Dresbachian[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	†Artiopoda
Class:	†Trilobita (?)
Order:	†Agnostida
Family:	†Agnostidae
Genus:	†Quadrahomagnostus Chu, 1959