†suborder Diplothecina Syssoiev 1957 (mollusk)
Calyptoptomatida - Camerothecida
Parent taxon: Camerothecida according to D. W. Fisher 1962
Sister taxon: Camerothecina
Subtaxa: Diplothecidae
Ecology: epifaunal
Distribution:
• Cambrian of Canada (2: New Brunswick collections)
Total: 2 collections each including a single occurrence