Synonym: Pholadomyacea Gray 1847 [replaced name]
Parent taxon: Pholadomyida according to J. G. Carter et al. 2011
Sister taxa: Andinodesma, Anomalopleuroides, Arcticlam, Arenigomya, Argyromya, Bontaea, Boriesia, Bowlandia, Casterella, Ceromyella, Cortinia, Crassiconcha, Dulunomya, Dyasma, Edmondioidea, Endomargarus, Fabagella, Farrazia, Gilbertsonia, Girardotia, Gissaromya, Glyptoconcha, Indomya, Jacquesia, Leinzia, Machomya, Mioporomya, Molukkana, Myadoropsis, Myochamoidea, Oblicarina, Obrimia, Offadesma, Parapachytraga, Paraprothyris, Parvithracia, Pholadella, Pholadomyocardia, Planariomya, Pleurodapis, Pleurophorina, Praemyonia, Prolaria, Promacrus, Protomya, Protopalliolum, Siliquimya, Sinodora, Taimyria, Tellinomorpha, Tergulina, Trichomyella, Triplicosta
Subtaxa: Arenigomyidae, Margaritariidae, Pholadomyidae, Ucumariidae
Ecology: facultatively mobile infaunal suspension feeder