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 Elphidiida Saidova, 1981
             Family Haynesinidae Mikhalevich, 2013
               Genus Protelphidium Haynes, 1956