Abra Lamarck 1818 (abra)
Bivalvia - Cardiida - Semelidae
PaleoDB taxon number: 17298
Parent taxon: Semelidae according to S. Schneider et al. 2005
Sister taxa: Cumingia, Ervilia, Erviliinae, Leptomya, Ligula, Scrobiculariinae, Semele, Semelinae, Theora, Lavignonus
Subtaxa: Abra (Abra), Abra (Syndosmya), Abra aequalis, Abra alba, Abra angulata, Abra antwerpiensis, Abra deshayesi, Abra fabalis, Abra marylandica, Abra nitens, Abra obovalis, Abra recluzii, Abra suessoniensis, Abra uruguayensis
Ecology: facultatively mobile infaunal deposit feeder-suspension feeder