Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
   Subphylum Ustilaginomycotina Doweld (2001)
     Class Exobasidiomycetes Begerow, M. Stoll & R. Bauer (2007)
       Order Doassansiales R. Bauer & Oberw. (1997)
         1 Family Doassansiaceae R.T.Moore ex P.M.Kirk, P.F. Cannon & J.C. David (2001)
         2 Family Melaniellaceae R. Bauer, Vánky, Begerow & Oberw. (1999)
         3 Family Rhamphosporaceae R. Bauer & Oberw. (1997)