Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Leotiomycetes O.E. Erikss. & Winka (1997)
       Order Helotiales Nannf. (1932)
         Family Geoglossaceae Corda (1838)
           01 ?Genus Bagnisimitrula S.Imai (1942)
           02 Genus Bryoglossum Redhead (1977)
           03 Genus Geoglossum Pers. (1794), nom. sanct.
           04 ?Genus Hemiglossum Pat. (1890)
           05 ?Genus Leucoglossum S.Imai (1942)
           06 ?Genus Maasoglossum K.S. Thind & R. Sharma (1985)
           07 Genus Microglossum Gillet (1879)
           08 Genus Nothomitra Maas Geest. (1964)
           09 ?Genus Pachycudonia S.Imai (1950)
           10 Genus Phaeoglossum Petch (1922)
           11 Genus Pseudomitrula Gamundí (1980)
           12 Genus Trichoglossum Boud. (1885)