†subfamily Orbiculoideinae Schuchert 1929 (lamp shell)
Lingulata - Lingulida - Discinidae
Parent taxon: Discinidae according to L. E. Popov 2000
Sister taxa: Acrosaccus, Discina, Discinisca, Discinolepis, Discradisca, Heliomedusa, Kosoidea, Lindstroemella, Lingulodiscina, Lochkothele, Oehlertella, Orbiculoidea, Roemerella, Schizotreta
Subtaxa: none
Ecology: stationary low-level epifaunal suspension feeder