Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
   Subphylum Agaricomycotina Doweld (2001)
     Class Tremellomycetes Doweld (2001)
       Order Cystofilobasidiales Fell, Roeijmans & Boekhout (1999)
         Family Mrakiaceae Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout (2015)
           1 Genus Itersonilia Derx (1948), incertae sedis
           2 Genus Krasilnikovozyma Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout (2015)
           3 Genus Mrakia Y. Yamada & Komag. (1987)
           4 Genus Phaffia M.W. Mill., Yoney. & Soneda (1976)
           5 Genus Tausonia Babeva (1998)
           6 Genus Udeniomyces Nakase & Takem. (1992)
           7 Genus Vustinia Kachalkin, Turchetti & Yurkov (2019)