†superfamily Ptychoparioidea Matthew 1887 (trilobite)
Parent taxon: Ptychopariina according to M. G. Pour and L. E. Popov 2009
Sister taxa: Conocoryphacea, Guizhoucephalina, Huaiaspis, Leiostegiacea, Liostracinoidea, Luaspididae, Paraantagmus, Ptychopariacea, Yuknessaspis
Subtaxa: none
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Cambrian of Canada (4: British Columbia, Newfoundland and Labrador, Northwest Territory collections), China (18), Greenland (1), India (1), Mexico (1), Morocco (1), South Korea (11), United States (21: California, Idaho, Montana, Nevada)
Total: 58 collections including 60 occurrences