Trilobita - Phacopida - Cheiruridae

Full reference: H. B. Whittington. 1963. Middle Ordovician trilobites from Lower Head, western Newfoundland. Bulletin of the Museum of Comparative Zoology 129(1):1-118

Belongs to Heliomeroides according to H. B. Whittington 1963

Sister taxa: Heliomeroides evitti, Heliomeroides freschaufae, Heliomeroides raymondi, Heliomeroides teres, Heliomeroides treta

Type specimen: GSC 16263, a cephalon/head

Ecology: fast-moving low-level epifaunal carnivore