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 Ustilaginomycetidae Jülich (1981) see Class Ustilaginomycetes Warm. (1884)
             Order Urocystales R. Bauer & Oberw. (1997), orth. inval. see Order Urocystidales R. Bauer & Oberw. (1997)
               Family Melanotaeniaceae Begerow, R. Bauer & Oberw. (1998)
                 1 Genus Exoteliospora R. Bauer, Oberw. & Vánky (1999)
                 2 Genus Melanotaenium de Bary (1874)
                 3 Genus Yelsemia J. Walker (2001)