Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Geoglossomycetes Zheng Wang, C.L. Schoch & Spatafora (2009) [monotypic]
       1 Order Geoglossales Zheng Wang, C.L. Schoch & Spatafora (2009)