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) Family Archaeosporaceae J.B. Morton & D. Redecker (2001) Genus Palaeospora Oehl, Palenz., I.C. Sánchez & G.A. Silva (2015) [monotypic] Palaeospora spainiaeᵀ Oehl, Palenz., I.C. Sánchez & G.A. Silva