Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lecanoromycetes O.E. Erikss. & Winka (1997)
       01 Subclass Acarosporomycetidae V. Reeb, Lutzoni & Cl.Roux (2004)
       02 Subclass Ostropomycetidae V. Reeb, Lutzoni & Cl.Roux (2004)
       03 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)
       04 Genus Auriculora Kalb (1988)
       05 Genus Bartlettiella D.J. Galloway & P.M. Jørg. (1990)
       06 Genus Biatoridium J. Lahm ex Körb. (1860)
       07 Genus Bilimbia De Not. (1846)
       08 Genus Boreoplaca Timdal (1994)
       09 Genus Botryolepraria Canals, Hern.-Mar., Gómez-Bolea & Llimona (1997)
       10 Genus Bouvetiella Øvstedal (1986)
       11 Genus Buelliastrum Zahlbr. (1930)
       12 Genus Collolechia A.Massal. (1854)
       13 ?Genus Corticifraga D.Hawksw. & R. Sant. (1990)
       14 Genus Corticiruptor Wedin & Hafellner (1998)
       15 ?Genus Eschatogonia Trevis. (1853)
       16 ?Genus Haploloma Trevis. (1857)
       17 Genus Helocarpon Th.Fr. (1860)
       18 Genus Hosseusia Gyeln. (1940)
       19 Genus Korfiomyces Iturr. & D.Hawksw. (2004)
       20 Genus Leprocaulon Nyl. (1878)
       21 Genus Lopezaria Kalb & Hafellner (1990)
       22 Genus Maronella M. Steiner (1959)
       23 Genus Mattickiolichen Tomas. & Cif. (1952)
       24 Genus Nimisiostella Calat., Barreno & O.E. Erikss. (1997)
       25 Genus Notolecidea Hertel (1984)
       26 Genus Piccolia A.Massal. (1856)
       27 Genus Podotara Malcolm & Vězda (1996)
       28 ?Genus Psorotichiella Werner (1955)
       29 ?Genus Ravenelula Speg. (1881)
       30 Genus Roccellinastrum Follmann (1968)
       31 ?Genus Stenhammarella Hertel (1967)
       32 Genus Strangospora Körb. (1860)
       33 Genus Timdalia Hafellner (2001)