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 (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)
           Family Cladoniaceae Zenker (1827)
             01 Genus Calathaspis I.M. Lamb & W.A. Weber (1972)
             02 Genus Cladia Nyl. (1870), nom. cons.
             03 Genus Cladonia P.Browne (1756), nom. cons.
             04 Genus Gymnoderma Nyl. (1860), nom. cons.
             05 Genus Heterodea Nyl. (1868)
             06 Genus Heteromyces Müll.Arg. (1889)
             07 Genus Lachnocaulon Clem. & Shear (1931)
             08 Genus Metus D.J. Galloway & P. James (1987)
             09 Genus Myelorrhiza Verdon & Elix (1986)
             10 Genus Pilophorus Th.Fr. (1857)
             11 Genus Pycnothelia (Ach.) Dufour (1821)
             12 Genus Ramalea Nyl. (1866)
             13 Genus Sphaerophoropsis Vain. (1890)
             14 Genus Squamella S. Hammer (2001)
             15 Genus Thysanothecium Mont. & Berk. (1846)