Species: canadensis DENISON, 1964
Etymology:

Holotype: NMC 10030

Locality: Locality R5-61, 2100’ of California Standard Company, on Alaska Highway, Mile 450, 59?7’30”N lat., 126?22’W long., about 30 miles northwest of Muncho Lake, British Columbia Province, Canada.

Horizon:

Biostratigraphy:

Age: Early Devonian.

Material: Dorsal shield.

Paratypes:

FMNH PF 3682: Incomplete dorsal shield.

FMNH PF 3638a: Incomplete dorsal shield and large piece of ventral disc.

FMNH FP 3684: Incomplete dorsal shield.

FMNH PF 3685: Incomplete dorsal shield.

FMNH PF 3687: Ventral shield.

FMNH PF 3688-3690: Ventral shield.

FMNH PF 3691: Ventral shield.

FMNH PF 3692-3693: Ventral shield.

Referred material:

FMNH PF 3694: Cast of type.