Trilobita - Phacopida - Cheiruridae

Full reference: H. B. Whittington and W.R., I.I. Evitt. 1953. Silicified Middled Ordovician trilobites. Geological Society of America Memoir 59:1-139

Belongs to Acanthoparypha according to H. B. Whittington and W.R., II Evitt 1953

Sister taxa: Acanthoparypha chiropyga, Acanthoparypha echinoderma, Acanthoparypha evitti, Acanthoparypha goniopyga

Type specimen: USNM 116504. Its type locality is Loc. 2. edge of quarry, just north of RR tracks ¼ mile west of Strasburg Junction, which is in a Blackriveran carbonate limestone in the Edinburg Formation of Virginia.

Ecology: fast-moving low-level epifaunal carnivore