EntityQ3015803· pop 7· linked from 7 articlesQuadrula stapesSign in to savespecies of molluscSpeciesSPECIESKingdomAnimaliaPhylumMolluscaClassBivalviaOrderUnionidaFamilyUnionidaevia GBIFConnectionsBivalviaEntityEndangered Species Act of 1973EntityCategoriesBivalves described in 1831Critically endangered fauna of the United StatesEndemic molluscs of the United StatesNatureServe presumed extinct speciesTaxonomy articles created by PolbotTheliderma