Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Glomeromycota C. Walker & A. Schüssler (2001) - arbuscular mycorrhizal fungi
     Class Glomeromycetes Caval.-Sm. (1998)
       Order Diversisporales C. Walker & A. Schüßler (2004)
         Family Gigasporaceae J.B. Morton & Benny (1990)
           Genus Gigaspora Gerd. & Trappe (1974)
             Gigaspora giganteaᵀ (T.H. Nicolson & Gerd.) Gerd. & Trappe (1974)