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
             Family Orbitoididae Schwager, 1876
               1 Subfamily Orbitoidinae Schwager, 1876
               2 Subfamily Omphalocyclinae Vaughan, 1928