Kingdom Fungi R.T.Moore (1980) - fungi Phylum Glomeromycota C. Walker & A. Schüssler (2001) - arbuscular mycorrhizal fungi Class Archaeosporomycetes Sieverd., G.A. Silva, B.T. Goto & Oehl (2011) [monotypic] Order Archaeosporales C. Walker & A. Schüßler (2001) 1 Family Ambisporaceae C. Walker, Vestberg & A. Schüßler (2007) [monotypic] 2 Family Archaeosporaceae J.B. Morton & D. Redecker (2001) 3 Family Geosiphonaceae Engl. & E. Gilg (1924) [monotypic]