Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
   Subphylum Agaricomycotina Doweld (2001)
     Class Agaricomycetes Doweld (2001)
       Order Agaricales Underw. (1899)
         Family Cystostereaceae Jülich (1982)
           1 Genus Cericium Hjortstam (1995)
           2 Genus Crustomyces Jülich (1978)
           3 Genus Cystidiodontia Hjortstam (1983)
           4 Genus Cystostereum Pouzar (1959)
           5 Genus Parvobasidium Jülich (1975)
           6 Genus Parvodontia Hjortstam & Ryvarden (2004)
           7 Genus Rigidotubus J. Song, Y.C. Dai & B.K. Cui (2018)