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 Boletales E.-J. Gilbert (1931)
               Family Sclerodermataceae Corda (1842)
                 1 Genus Astraeus Morgan (1889)
                 2 Genus Calostoma Desv. (1809)
                 3 Genus Favillea Fr. (1849)
                 4 Genus Horakiella Castellano & Trappe (1992)
                 5 Genus Pisolithus Alb. & Schwein. (1805)
                 6 Genus Scleroderma Pers. (1801)
                 7 Genus Tremellogaster E. Fisch. (1924)