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 Grammotheleaceae Jülich (1982) see Family Polyporaceae Fr. ex Corda (1839)
                 1 Genus Grammothele Berk. & M.A.Curtis (1868)
                 2 Genus Hymenogramme Mont. & Berk. (1844)
                 3 Genus Porogramme (Pat.) Pat. (1900)
                 4 Genus Theleporus Fr. (1847)