†Diacanthaspis (Diacanthaspis) Whittington 1941 (trilobite)
Trilobita - Odontopleurida - Odontopleuridae
Parent taxon: Diacanthaspis according to Whittington 1941
See also Ramsköld and Chatterton 1991
Sister taxa: Diacanthaspis decacantha, Diacanthaspis elapsus, Diacanthaspis lalage, Diacanthaspis lepidus, Diacanthaspis maquoketensis, Diacanthaspis orandensis, Diacanthaspis scitulus, Diacanthaspis secretus, Diacanthaspis trispineus, Diacanthaspis ulrichi
Subtaxa: Diacanthaspis (Diacanthaspis) cooperi
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 Norway (1), United States (5: Virginia)
Total: 10 collections each including a single occurrence