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 Ostropales Nannf. (1932)
           Family Thelenellaceae O.E. Erikss. ex H. Mayrhofer (1987)
             1 Genus Aspidothelium Vain. (1890)
             2 Genus Chromatochlamys Trevis. (1860)
             3 Genus Thelenella Nyl. (1855)