†subfamily Iwayaspidinae Kobayashi 1962 (trilobite)
Artiopoda - Asaphida - Ceratopygidae
Parent taxon: Ceratopygidae according to J. H. Shergold 1980
Sister taxa: Ajacicrepida, Asiocephalus, Boschchekulia, Ceratopyge, Charchaqia, Diceratopyge, Dichelepyge, Dipleuropyge, Haniwoides, Hedinaspis, Hunanopyge, Hysterolenus, Kaltykelina, Kaufmannella, Kogenium, Macropyge, Macropygella, Mansuyella, Nannopeltis, Onychopyge, Proceratopyge, Pseudohysterolenus, Pseudoyuepingia, Tamdaspis, Tropidopyge, Yuepingioides
Subtaxa: Cermatops
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Australia (17 collections)
Total: 17 collections including 23 occurrences