organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Fungi R.T.Moore (1980) - fungi
       Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
         Class Ustilaginomycetes Warm. (1884) - smut fungi
           Subclass Exobasidiomycetidae Jülich (1981) see Class Exobasidiomycetes Begerow, M. Stoll & R. Bauer (2007)
             Order Doassansiales R. Bauer & Oberw. (1997)
               Family Doassansiaceae R.T.Moore ex P.M.Kirk, P.F. Cannon & J.C. David (2001)
                 01 Genus Burrillia Setch. (1891)
                 02 Genus Doassansia Cornu (1883)
                 03 Genus Doassansiella Zambett. (1970), nom. inval.
                 04 Genus Doassinga Vánky, R. Bauer & Begerow (1998)
                 05 Genus Heterodoassansia Vánky (1993)
                 06 Genus Nannfeldtiomyces Vánky (1981)
                 07 Genus Narasimhania Thirum. & Pavgi (1952)
                 08 Genus Pseudodermatosorus Vánky (1999)
                 09 Genus Pseudodoassansia (Setch.) Vánky (1981)
                 10 Genus Pseudotracya Vánky (1999)
                 11 Genus Savulescuella Cif. (1959)
                 12 Genus Tracya Syd. & P.Syd. (1901)