Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Geoglossomycetes Zheng Wang, C.L. Schoch & Spatafora (2009) [monotypic]
       Order Geoglossales Zheng Wang, C.L. Schoch & Spatafora (2009)
         Family Geoglossaceae Corda (1838)
           1 Genus Geoglossum Pers. (1794), nom. sanct.
           2 Genus Glutinoglossum Hustad, A.N. Mill, Dentinger & P.F. Cannon (2013)
           3 Genus Hemileucoglossum S. Arauzo (2014)
           4 Genus Leucoglossum S.Imai (1942)
           5 Genus Maasoglossum K.S. Thind & R. Sharma (1985)
           6 Genus Sabuloglossum Hustad, A.N. Mill, Dentinger & P.F. Cannon (2013)
           7 Genus Sarcoleotia S.Ito & S.Imai (1934)
           8 Genus Trichoglossum Boud. (1885)