Supergroup Rhizaria Cavalier-Smith, 2002 see Infrakingdom Rhizaria Cavalier-Smith, 2002
   Phylum Foraminifera d'Orbigny, 1826 see Subphylum Foraminifera d'Orbigny, 1826
     Class Rotaliata Mikhalevich, 1980 - hyaline foraminifers
       Subclass Rotaliana Mikhalevich, 1980
         Superorder Nonionoida Saidova, 1981
           Order Orbitoidida Copeland, 1956
             1 Family Orbitoididae Schwager, 1876
             2 Family Lepidorbitoididae Vaughan, 1933
             3 Family Lepidocyclinidae Scheffen, 1932
             4 Family Linderinidae Loeblich & Tappan, 1984
             5 Family Droogerinellidae Popescu & Brotea, 1995
             6 Family Orbitosiphonidae Matsumaru & Jauhri, 2003