Kingdom Fungi R.T.Moore (1980) - fungi Phylum Glomeromycota C. Walker & A. Schüssler (2001) - arbuscular mycorrhizal fungi Class Glomeromycetes Caval.-Sm. (1998) Order Archaeosporales C. Walker & A. Schüßler (2001) 1 Family Unnamed fam. ined. see Family Archaeosporaceae J.B. Morton & D. Redecker (2001) 2 Family Archaeosporaceae J.B. Morton & D. Redecker (2001) 3 Family Geosiphonaceae Engl. & E. Gilg (1924)