†Cardiomorpha de Koninck 1844 (clam)
Bivalvia - Cardiidia - Grammysiidae
Full reference: L. G. de Koninck. 1844. Description des animaux fossiles quie se trouvent dans le terrain carbonifère de Belgique 1-650
Parent taxon: Grammysiidae according to R. D. Hoare 1961
Sister taxa: Asketomorpha, Cercomyopsis, Cimitaria, Cuneamya, Cuneamyinae, Ectogrammysia, Fuchsella, Glossites, Grammysia, Grammysiinae, Grammysioidea, Prothyris, Sedgwickia, Solenomorpha
Subtaxa: Cardiomorpha digglesi, Cardiomorpha doulingensis, Cardiomorpha indica, Cardiomorpha inflata, Cardiomorpha minuta, Cardiomorpha missouriensis, Cardiomorpha obovata, Cardiomorpha pinguis, Cardiomorpha sublimosa
Ecology: facultatively mobile infaunal suspension feeder