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 Textulariana Mikhalevich, 1980
         Order Textulariida Delage & Hérouard, 1896
           Superfamily Textularioidea Ehrenberg, 1838
             Family Bigenerinidae Saidova, 1981
               1 Subfamily Bigenerininae Saidova, 1981
               2 Subfamily Cribrobigenerininae Mikhalevich, 2003
               3 Subfamily Siphobigenerininae Loeblich & Tappan, 1986