Rhynchonellata - Atrypida

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

See also Boucot and Johnson 1964 and Mitchell 1977

Sister taxa: Anazygidina, Antelocoelia, Davidsoniidina, Lissatrypidina, Protatrypinae, Undithyrella, Wutubulakia

Subtaxa: Atrypacea Atrypoidea Daylacea Punctatrypoidea

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Ecology: stationary epifaunal suspension feeder

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