Family Malletiidae Adams and Adams 1858 (clam)
Parent taxon: Nuculanoidea according to P. M. Mikkelsen and R. Bieler 2008
Sister taxa: Isoarcidae, Nuculanidae, Phaseolidae, Polidevciidae, Sareptidae, Saturnidae, Yoldiidae, Zealedidae
Subtaxa: Anthraconeilo, Arisaigia, Australoneilo, Cadomia, Carinineilo, Concavoleda, Ctenodontella, Dysodonta, Ekstadia, Johnmartinia, Katadesmia, Koenenia, Lapteviella, Lophoconcha, Malletia, Metapalaeoneilo, Myoplusia, Neilo, Nuculites, Palaeoneilo, Perissonata, Phaenodesmia, Prosoleptus, Quadratonucula, Sluha, Spathelopsis, Taimyrodon, Tindariopsis, Vnigriella, Yoldioides, Zeehania
Ecology: facultatively mobile infaunal deposit feeder