†superfamily Ptychoparioidea Matthew 1887 (trilobite)
Parent taxon: Ptychopariina according to M. G. Pour and L. E. Popov 2009
Sister taxa: Conocoryphacea, Guizhoucephalina, Huaiaspis, Leiostegiacea, Luaspididae, Paraantagmus, Ptychopariacea, Tonopahella, Yuknessaspis
Subtaxa: none
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Delamaran of Canada (1: British Columbia collection), Mexico (1), Morocco (1), United States (2: Nevada)
• Cambrian of Canada (1: Newfoundland and Labrador), China (18), Greenland (1), India (1), South Korea (11), United States (19: California, Idaho, Montana, Nevada)
Total: 56 collections including 57 occurrences