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 Ascomycota Caval.-Sm. (1998) - sac fungi
         Class Ascomycetes G.Winter (1880) see Phylum Ascomycota Caval.-Sm. (1998)
           Subclass Lecanoromycetidae P.M.Kirk, P.F. Cannon, J.C. David & Stalpers (2001), nom. inval. see Subclass Lecanoromycetidae P.M.Kirk, P.F. Cannon, J.C. David & Stalpers ex Miądl., Lutzoni & Lumbsch (2007)
             Order Lecanorales Nannf. (1932)
               01 Family Acarosporaceae Zahlbr. (1906)
               02 Family Aphanopsidaceae Printzen & Rambold (1995)
               03 Family Arctomiaceae Th.Fr. (1860)
               04 Family Bacidiaceae Walt. Watson (1929) see Family Ramalinaceae C.Agardh (1821)
               05 Family Biatorellaceae M. Choisy ex Hafellner & Casares (1992)
               06 Family Brigantiaeaceae Hafellner & Bellem. (1982)
               07 Family Caliciaceae Chevall. (1826)
               08 Family Candelariaceae Hakul. (1954)
               09 Family Catillariaceae Hafellner (1984)
               10 Family Cladoniaceae Zenker (1827)
               11 Family Coccocarpiaceae Henssen (1986)
               12 Family Collemataceae Zenker (1827)
               13 Family Crocyniaceae M. Choisy ex Hafellner (1984) see Family Ramalinaceae C.Agardh (1821)
               14 Family Dactylosporaceae Bellem. & Hafellner (1982)
               15 Family Ectolechiaceae see Family Pilocarpaceae Zahlbr. (1905)
               16 Family Gypsoplacaceae Timdal (1990)
               17 Family Haematommataceae Hafellner (1984)
               18 Family Heppiaceae Zahlbr. (1906) see Family Lichinaceae Nyl. (1854)
               19 Family Heterodeaceae Filson (1978) see Family Cladoniaceae Zenker (1827)
               20 Family Hymeneliaceae Körb. (1855)
               21 Family Lecanoraceae Körb. (1855)
               22 Family Lecideaceae Chevall. (1826)
               23 Family Loxosporaceae Kalb & Staiger (1995) see Family Sarrameanaceae Hafellner (1984)
               24 Family Megalariaceae Hafellner (1984)
               25 Family Megalosporaceae Vezda ex Hafellner & Bellem. (1982)
               26 Family Micareaceae see Family Pilocarpaceae Zahlbr. (1905)
               27 Family Miltideaceae Hafellner (1984)
               28 Family Mycoblastaceae Hafellner (1984) see Family Tephromelataceae Hafellner (1984)
               29 Family Ophioparmaceae R.W. Rogers & Hafellner (1988)
               30 Family Pannariaceae Tuck. (1872)
               31 Family Parmeliaceae Zenker (1827)
               32 Family Phlyctidaceae Poelt & Vezda ex J.C. David & D.Hawksw. (1991)
               33 Family Physciaceae A. Schneid. (1897), nom. cons.
               34 Family Pilocarpaceae Zahlbr. (1905)
               35 Family Porpidiaceae Hertel & Hafellner (1984) see Family Lecideaceae Chevall. (1826)
               36 Family Psoraceae Zahlbr. (1898)
               37 Family Ramalinaceae C.Agardh (1821)
               38 Family Rhizocarpaceae M. Choisy ex Hafellner (1984)
               39 Family Sphaerophoraceae Fr. (1831)
               40 Family Stereocaulaceae Chevall. (1826)
               41 Family Vezdaeaceae Poelt & Vezda ex J.C. David & D.Hawksw. (1991)