Trilobita - Phacopida - Cheiruridae

Full reference: W. R. Evitt. 1951. Some Middle Ordovician trilobites of the families Cheiruridae, Harpidae, and Lichidae. Journal of Paleontology 25(5):587-616

Belongs to Heliomeroides according to W. R. Evitt 1951

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

Type specimen: USNM 116293, a cephalon/head (glabella only)

Ecology: fast-moving low-level epifaunal carnivore