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)
           01 Family Gomphillaceae W. Watson ex Hafellner (1984)
           02 Family Graphidaceae Dumort. (1822)
           03 Family Odontotremataceae D.Hawksw. & Sherwood (1982)
           04 Family Phaneromycetaceae Gamundí & Spinedi (1986)
           05 Family Solorinellaceae Vezda & Poelt (1990)
           06 Family Stictidaceae Fr. (1849)
           07 Family Thelotremataceae (Nyl.) Stizenb. (1862) see Family Graphidaceae Dumort. (1822)
           08 ?Genus Leucogymnospora Fink (1930)
           09 ?Genus Phaeographopsis Sipman (1997)
           11 Genus Platygraphopsis Müll.Arg. (1887)
           12 ?Genus Xyloschistes Vain. ex Zahlbr. (1903)