Papillicardium papillosumPapillicardium papillosum is a species in the genus Papillicardium, family Cardiidae, order Cardiida.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumMolluscaClassBivalviaOrderCardiidaFamilyCardiidaeGenusPapillicardiumSpeciesPapillicardium papillosum