triloculinella triloculinella triloculinella is a genus of miliolacean forams with a fusiform to asymmetrically globular test. inner chambers, one-half coil in length, are crypto-quinqueloculine to quinqueloculine in arrangement; the final three to five visible from the exterior. the aperture is an arch at the end of the final chamber, largely covered by a broad apertural flap, which distinguishes the genus from triloculina, quinqueloculina and such, characterized by a more narrow tooth. the wall, as for all miliolids, is calcareous, imperforate, porcelaneous. triloculinellatemporal range: oligocene to holocene scientific classification (unranked): sar (unranked): rhizaria phylum: foraminifera class: tubothalamea order: miliolida superfamily: miliolacea family: hauerinidae genus: triloculinellariccio, 1950 the world foraminifera datavase has quinquinella vella, 1977, and scutuloris loeblich & tappan, 1953 as synonyms of triloculinella. shows nine recognized species with two more accepted as miliolinella and one other as quinqueloculina. defines foraminifera as a phylum, rather than a class is in sen gupta 1999, within the infrakingdom rhizaria. imiges and illustrations of triloculinella can be found at triloculinella foraminifera and triloculinella in the world foramiinifera database.