ammonites
Hemiarges turneri Chatterton and Ludvigsen 1976 (trilobite)

Trilobita - Lichida - Lichidae

Full reference: B. D. E. Chatterton and R. Ludvigsen. 1976. Silicified Middle Ordovician trilobites from the South Nahanni River Area, District of Mackenzie, Canada. Palaeontographica Abteilung A 154(1-3):1-106

Belongs to Hemiarges according to B. D. E. Chatterton and R. Ludvigsen 1976

Sister taxa: none

Type specimen: GSC 43450, a cephalon/head (cranidium)

Ecology: fast-moving low-level epifaunal carnivore