Bivalvia - Cardiidia - Grammysiidae

Parent taxon: Grammysiidae according to J. G. Carter et al. 2011

Sister taxa: Asketomorpha, Cardiomorpha, Cercomyopsis, Cimitaria, Cuneamya, Cuneamyinae, Ectogrammysia, Fuchsella, Glossites, Grammysia, Grammysioidea, Prothyris, Sedgwickia, Solenomorpha

Subtaxa: none

Ecology: facultatively mobile infaunal suspension feeder