Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
   Subphylum Ustilaginomycotina Doweld (2001)
     Class Exobasidiomycetes Begerow, M. Stoll & R. Bauer (2007)
       Order Exobasidiales Henn. (1898)
         Family Exobasidiaceae J.Schröt. (1888)
           1 Genus Arcticomyces Savile (1959)
           2 Genus Austrobasidium Palfner (2006)
           3 Genus Exobasidium Woronin (1867)
           4 Genus Muribasidiospora Kamat & Rajendren (1968)