†superfamily Delthyridacea Phillips 1841 (lamp shell)
Parent taxon: Spiriferidina according to Phillips 1841
Sister taxa: Adolfioidea, Ambocoelioidea, Brachythyridoidea, Cyrtioidea, Cyrtospiriferoidea, Martinioidea, Paeckelmanelloidea, Spirifera paucicostata, Spirifera trapezoidalis, Spirifera vespertilio, Spiriferoidea, Theodossioidea
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution: there are no occurrences of Delthyridacea in the database