Superfamily Trigonioidea Lamarck 1819 (clam)
Parent taxon: Trigoniida according to J. G. Carter et al. 2011
Sister taxa: Andivaugonia, Antutitrigonia, Arabitrigonia, Beichuanioidea, Columbitrigonia, Dampietrigonia, Gobiella, Heslingtonia, Kupenga, Litotrigonia, Lyrodesmatacea, Macrotrigonia, Mediterraneotrigonia, Megatrigonioidea, Myophorellina, Myophorelloidea, Nakanotrigonia, Neuquenenitrigonia, Paranditrigonia, Procostaria, Pseudocardinioidea, Skwarkoella, Trigoniina, Trigonioidoidea, Trigonodoidea, Zaletrigonia, Zulutrigonia
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder