miliolidae miliolidae miliolidae is a family in the superfamily miliolacea of miliolid foraminifera. miliolidae quinqueloculina sp. from donegal bay, ireland. scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria phylum: retaria subphylum: foraminifera class: tubothalamea order: miliolida superfamily: miliolacea family: miliolidae genera/ subfamilies genus massilina subfamily fabulariinae subfamily miliolinae subfamily miliolinellinae subfamily quinqueloculininae subfamily tubinellinae