Family Crassatellidae Férussac 1822 (clam)
PaleoDB taxon number: 59901
Synonym: Crassatellitidae Dall 1895 (taxon 71674)
Parent taxon: Crassatelloidea according to J. G. Carter et al. 2011
Sister taxa: Aenigmoconchidae, Astartidae, Cardiniidae, Carditidae, Condylocardiidae, Hippopodiidae, Myophoricardiidae
Subtaxa: Anthonya, Crassatella, Crassatellinae, Eucrassatella, Incatina, Ptychomyinae, Scambulinae, Spissatella
Ecology: facultatively mobile shallow infaunal suspension feeder