†suborder Atrypidina Moore 1952 (lamp shell)
Parent taxon: Atrypida according to A. Williams et al. 2002
Sister taxa: Anazygidina, Antelocoelia, Davidsoniidina, Lissatrypidina, Undithyrella, Wutubulakia, Zygospirinae
Subtaxa: Atrypacea, Atrypoidea, Punctatrypoidea
Ecology: stationary epifaunal suspension feeder