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 Coenogoniaceae Stizenb. (1862) [monotypic]
           02 Family Gomphillaceae W. Watson ex Hafellner (1984)
           03 Family Graphidaceae Dumort. (1822)
           04 Family Gyalectaceae Stizenb. (1862)
           05 Family Odontotremataceae D.Hawksw. & Sherwood (1982)
           06 Family Phaneromycetaceae Gamundí & Spinedi (1986) [monotypic]
           07 Family Phlyctidaceae Poelt & Vezda ex J.C. David & D.Hawksw. (1991)
           08 Family Porinaceae Rchb. (1828)
           09 Family Protothelenellaceae Vězda, H. Mayrhofer & Poelt (1985)
           10 Family Sagiolechiaceae Baloch, Lücking, Lumbsch & Wedin (2010)
           11 Family Stictidaceae Fr. (1849)
           12 Family Thelenellaceae O.E. Erikss. ex H. Mayrhofer (1987)
           13 Family Thrombiaceae Poelt & Vězda ex J.C. David & D.Hawksw. (1991) [monotypic]
           14 Genus Amphorothecium P.M. McCarthy, Kantvilas & Elix (2001), incertae sedis
           15 Genus Anzina Scheid. (1982), incertae sedis
           16 Genus Corticifraga D.Hawksw. & R. Sant. (1990), incertae sedis
           17 Genus Malvinia Döbbeler (2003), incertae sedis