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 Basidiomycetes G.Winter (1880)
           Subclass Agaricomycetidae Locq. ex Parmasto (1986)
             Order Polyporales Gäum. (1926)
               Family Sistotremataceae Jülich (1982) see Family Hydnaceae Chevall. (1826)
                 1 Genus Paullicorticium J.Erikss. (1958)
                 2 Genus Repetobasidiellum J.Erikss. & Hjortstam (1981)
                 3 Genus Repetobasidium J.Erikss. (1958)
                 4 Genus Sistotrema Fr. (1821), nom. sanct.
                 5 Genus Sistotremastrum J.Erikss. (1958)
                 6 Genus Sistotremella Hjortstam (1984)
                 7 Genus Sphaerobasidium Oberw. (1965)
                 8 Genus Trechispora P.Karst. (1890)