Parent taxon: Pelecypoda according to R. Rivera 1957
See also Glenn 1904 and Olsson 1931
Sister taxa: Acanomyophoria, Acturellina, Afghanodesma, Amosius, Ampezzania, Amphikoilinae, Arhouriellidae, Asiphonidae, Asthenodonta, Autobranchia, Aviculomya, Bakewellia, Bathyspinulinae, Bleta, Bodmania, Burriera, Carnidia, Cirravidae, Claughtonia, Conchodus, Cruciella, Cryptodonta, Ctenolima, Delia, Dissonia, Edon, Elliptoidea, Ensia, Eubivalvia, Euburnopecten, Euprotobranchia, Fogiella, Geinitzia, Gibboconcha, Gosselettia, Guebhardia, Hemisterias, Isofilibranchia, Laurskiidae, Libyaconchus, Lipodonta, Lux, Manankovia, Megagrypha, Modiolopsis praerupta, Nanogyra (Palaeogyra), Neotaxodonta, Onkogrypha, Ostrea compta, Ostreavicula, Palaeostrea, Paradoxia, Paraviculidae, Paullia, Phyllonia, Pleureterites, Praecardiomya, Praevicula, Productae, Protobranchia, Psammoconcha, Pteriomorpha, Ptychoplasma, Rebusum, Reniella, Rostrotortus, Septocardiidae, Solen (Solecurtus) ellipticus, Solen (Solecurtus) planulatus, Sollea, Spirodomidae, Stagnestesta, Taeniodon, Tatella, Telistrophis, Trachidomia, Anomalodesmacea, Solenomyidae, Aviculidae, Gariidae, Phaenomya, Corbidae, Eoasmussia, Prionodesmacea, Plicatulacea, Lyra, Coelonotidae, Imperia, Praeanomalodontata
Subtaxa: Adesmacea Diagenodonta Isocardiacea Teleodonta
Ecology: facultatively mobile infaunal suspension feeder