Species: yukonensis DEINSON, 1963
Etymology:

Holtoype: Princeton Univeristy, PU 17088

Locality: Beaver River, 60?27’N lat., 125?46’W long, Southeastern Yukon Province, Canada.

Horizon:

Biostratigraphy:

Age: Downtonian (?), Ludlovian Epoch, Late Silurian.

Material: Dorsal shield and posterior part of ventral shield.

Referred material:

FMNH PF 3294: Cast of type.