Clade Poromyata Ridewood 1903 (clam)
Parent taxon: Cardiidia according to J. G. Carter et al. 2011
Sister taxa: Cardiata, Grammysioidea, Solenata
Subtaxa: Pandorida Pholadomyida Poromyida Thraciida
Ecology: facultatively mobile infaunal suspension feeder