Bivalvia - Cardiida - Mactridae

Parent taxon: Mactrinae according to H. E. Vokes 1980

Sister taxa: Aliomactra, Allomactra, Andrusella, Avimactra, Crepispisula, Cryptomactra, Cymbophora, Diaphoromactra, Eopapyrina, Geltena, Harvella, Labiosa, Mactra, Mactrellona, Mactrinula, Mactrodesma, Nannomactra, Nymphactra, Ovamactra, Oxyperas, Priscomactra, Scalpomactra, Simomactra, Standella, Telemactra, Trinitasia

Subtaxa: Notospisula (Notospisula), Notospisula trigonella

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Ecology: facultatively mobile infaunal suspension feeder