Bivalvia - Protobranchia - Malletiidae

Alternative spellings: Perissonota, Perrisonota

Parent taxon: Malletiidae according to

Sister taxa: Anthraconeilo, Arisaigia, Australoneilo, Cadomia, Carinineilo, Concavoleda, Ctenodontella, Dysodonta, Ekstadia, Johnmartinia, Katadesmia, Koenenia, Lapteviella, Lophoconcha, Malletia, Metapalaeoneilo, Myoplusia, Neilo, Nuculites, Palaeoneilo, Phaenodesmia, Prosoleptus, Quadratonucula, Sluha, Spathelopsis, Taimyrodon, Tindariopsis, Vnigriella, Yoldioides, Zeehania

Subtaxa: none

Ecology: facultatively mobile infaunal deposit feeder