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 (2001), nom. inval. see Order Diversisporales C. Walker & A. Schüßler (2004)
         Family Gigasporaceae J.B. Morton & Benny (1990)
           Genus Gigaspora Gerd. & Trappe (1974)
             1 Gigaspora albida N.C. Schenck & G.S. Sm. (1982)
             2 Gigaspora candida Bhattacharjee et al. (1982)
             3 Gigaspora gigantea (T.H. Nicolson & Gerd.) Gerd. & Trappe (1974)
             4 Gigaspora margarita W.N. Becker & I.R. Hall (1976)