Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Arthoniomycetes O.E. Erikss. & Winka (1997)
       Order Arthoniales Henssen ex D.Hawksw. & O.E. Erikss. (1986)
         01 Family Arthoniaceae Rchb. (1841)
         02 Family Chrysotrichaceae Zahlbr. (1905), nom. cons.
         03 ?Family Melaspileaceae W. Watson (1929)
         04 Family Roccellaceae Chevall. (1826)
         05 Genus Arthophacopsis Hafellner (1998)
         06 Genus Catarraphia A.Massal. (1860)
         07 ?Genus Hormosphaeria Lév. (1863), nom. dub.
         08 Genus Llimonaea Egea & Torrente (1991)
         09 Genus Nipholepis Syd. (1935)
         10 Genus Perigrapha Hafellner (1996)
         11 Genus Pulvinodecton Henssen & G. Thor (1998)
         12 Genus Sipmania Egea & Torrente (1994)
         13 Genus Synarthonia Müll.Arg. (1891)
         14 Genus Tania Egea, Torrente & Sipman (1995), incertae sedis
         15 ?Genus Tarbertia Dennis (1974)
         16 Genus Trichophyma Rehm (1904)
         17 Genus Tylophorella Vain. (1890)
         18 Genus Wegea Aptroot & Tibell (1997)