Artiopoda - Odontopleurida - Odontopleuridae
Parent taxon: Diacanthaspis according to Whittington 1941
See also Ramsköld and Chatterton 1991
Sister taxa: Diacanthaspis cooperi, Diacanthaspis decacantha, Diacanthaspis elapsus, Diacanthaspis lalage, Diacanthaspis lepidus, Diacanthaspis maquoketensis, Diacanthaspis orandensis, Diacanthaspis scitulus, Diacanthaspis secretus, Diacanthaspis trispineus, Diacanthaspis ulrichi
Subtaxa: Diacanthaspis (Diacanthaspis) krizi
Type: Diacanthaspis cooperi
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whitwellian of Canada (3: Northwest Territories collections)
• Silurian of United States (1: Arkansas)
• Ordovician of Czechia (3), Norway (1)
Total: 8 collections each including a single occurrence