Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lecanoromycetes O.E. Erikss. & Winka (1997)
       Subclass Lecanoromycetidae P.M.Kirk, P.F. Cannon, J.C. David & Stalpers ex Miądl., Lutzoni & Lumbsch (2007)
         Order Rhizocarpales Miądl. et al. ex Miądl. & Lutzoni (2016)
           Family Rhizocarpaceae M. Choisy ex Hafellner (1984)
             1 Genus Catolechia Flot. (1850)
             2 Genus Epilichen Clem. (1909)
             3 Genus Poeltinula Hafellner (1984)
             4 Genus Rhizocarpon Ramond ex DC. (1805)