Viaphacops is one of the two least common Phacopid trilobites (Order: Phacopida; Suborder: Phacopina; Superfamily: Phacopoidea; Family: Phacopidae) occuring in the Lower Devonian strata of Oklahoma. Viaphacops has schizochroal eye facets, the unique attribute of Phacopid Suborder Phacopina.

Also see: Oklahoma Trilobites