Bivalvia - Arcida - Arcidae

Parent taxon: Arcidae according to L. W. Ward and B.W. Blackwelder 1987

Sister taxa: Ambrogia, Anadarinae, Angulararca, Arca, Arcinae, Asperarca, Bathyarca, Bentharca, Coraliarca, Fossularca, Fugleria, Karasuarca, Kikaiarca, Litharcinae, Noetiinae, Pectunculinae, Scapharca

Subtaxa: Quadrilatera januaria

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Ecology: facultatively mobile epifaunal suspension feeder