Kingdom Fungi R.T.Moore (1980) - fungi Phylum Glomeromycota C. Walker & A. Schüssler (2001) - arbuscular mycorrhizal fungi Class Paraglomeromycetes Oehl, G.A. Silva, B.T. Goto & Sieverd. (2011) [monotypic] Order Paraglomerales C. Walker & A. Schüßler (2001) Family Pervetustaceae Błaszk., Chwat, Kozłowska, Symanczik & Al-Yahya'ei (2017) [monotypic] 1 Genus Pervetustus Błaszk., Chwat, Kozłowska, Symanczik & Al-Yahya'ei (2017) [monotypic]