Bivalvia - Cardiidia

Parent taxon: Grammysioidea according to J. G. Carter et al. 2011

Sister taxon: Grammysiidae

Subtaxa: Alulinae, Paleodorinae, Pholadellinae, Sanguinolitinae, Sueroa, Undulomyinae, Verchanogrammysia

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Type: Sanguinolites

Ecology: facultatively mobile infaunal suspension feeder