Rhynchonellata - Atrypida

Parent taxon: Atrypida according to A. Williams et al. 2002

Sister taxa: Anazygidina, Antelocoelia, Atrypidina, Davidsoniidina, Undithyrella, Wutubulakia, Zygospirinae

Subtaxa: Glassioidea, Lissatrypoidea, Protozygoidea

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Ecology: stationary epifaunal suspension feeder