†subfamily Delthyrinae Waagen 1883 (lamp shell)
Rhynchonellata - Spiriferida - Spiriferidae
Parent taxon: Spiriferidae according to K. S. W. Campbell and B. A. Engel 1963
Sister taxa: Allanaria, Brachythyrinae, Gypospiriferinae, Intermedites, Prospirinae, Purdonellinae, Sergospiriferinae, Spiriferinae
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution: there are no occurrences of Delthyrinae in the database