Infraclass Heteroconchia Gray 1854 (clam)
PaleoDB taxon number: 244205
Parent taxon: Autobranchia according to J. G. Carter et al. 2011
Sister taxa: Cercomyidae, Palaeocardiidae, Pteriomorpha, Pteriomorphia, Cardiolarioidea
Subtaxa: Archiheterodonta, Cardiomorphi, Eoastartella, Heterodonta, Heterodonta, Palaeoheterodonta, Parenia, Paullia, Uniomorphi
Ecology: facultatively mobile infaunal suspension feeder