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) Genus Pacispora Sieverd. & Oehl (2004)