Superfamily Carditoidea Fleming 1820 (clam)
Synonym: Carditacea Fleming 1820 [replaced name]
Parent taxon: Heterodonta according to G. Giribet and W. Wheeler 2002
Sister taxa: Anomalodesmata, Myoida, Septibranchia
Subtaxa: Birkelundita
Ecology: facultatively mobile infaunal suspension feeder