Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lecanoromycetes O.E. Erikss. & Winka (1997)
       Subclass Ostropomycetidae V. Reeb, Lutzoni & Cl.Roux (2004)
         Order Pertusariales M. Choisy ex D.Hawksw. & O.E. Erikss. (1986)
           1 Family Coccotremataceae Henssen ex J.C. David & D.Hawksw. (1991)
           2 Family Icmadophilaceae Triebel (1993)
           3 Family Megasporaceae Lumbsch (1994)
           4 Family Miltideaceae Hafellner (1984) [monotypic]
           5 Family Ochrolechiaceae R.C. Harris ex Lumbsch & I. Schmitt (2006)
           6 Family Pertusariaceae Körb. ex Körb. (1855)
           7 Genus Lepra Scop. (1777), incertae sedis