Mactrinula Gray 1853 (clam)
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, Mactrodesma, Nannomactra, Notospisula, Nymphactra, Ovamactra, Oxyperas, Priscomactra, Scalpomactra, Simomactra, Standella, Telemactra, Trinitasia
Subtaxa: Mactrinula tryphera
Ecology: facultatively mobile infaunal suspension feeder