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 Andreiomycetaceae B.P. Hodk. & Lendemer (2013) [monotypic]
         02 Family Arthoniaceae Rchb. (1841)
         03 Family Chrysotrichaceae Zahlbr. (1905), nom. cons.
         04 Family Lecanographaceae Ertz, Tehler, G. Thor & Frisch (2014)
         05 Family Opegraphaceae Stizenb. (1862)
         06 Family Roccellaceae Chevall. (1826)
         07 Family Roccellographaceae Ertz & Tehler (2011)
         08 Genus Angiactis Aptroot & Sparrius (2008), incertae sedis
         09 Genus Arthophacopsis Hafellner (1998), incertae sedis
         10 Genus Bactrospora A.Massal. (1852), incertae sedis
         11 Genus Bryostigma Poelt & Döbbeler (1979), incertae sedis
         12 Genus Catarraphia A.Massal. (1860), incertae sedis
         13 Genus Felipes Frisch & G. Thor (2014), incertae sedis
         14 Genus Glyphopsis Aptroot (2014)
         15 Genus Gossypiothallon Aptroot (2014)
         16 Genus Helminthocarpon Fée (1837), incertae sedis
         17 Genus Hormosphaeria Lév. (1863), nom. dub., incertae sedis
         18 Genus Minksia Müll.Arg. (1882), incertae sedis
         19 Genus Nipholepis Syd. (1935), incertae sedis
         20 Genus Perigrapha Hafellner (1996), incertae sedis
         21 Genus Phoebus R.C. Harris & Ladd (2007), incertae sedis
         22 Genus Sporostigma Grube (2001), incertae sedis
         23 Genus Synarthonia Müll.Arg. (1891), incertae sedis
         24 Genus Synarthothelium Sparrius (2009), incertae sedis
         25 Genus Tarbertia Dennis (1974), incertae sedis
         26 Genus Tremotylium Nyl. (1865), incertae sedis
         27 Genus Trichophyma Rehm (1904), incertae sedis
         28 Genus Tylophorella Vain. (1890), incertae sedis
         29 Genus Wegea Aptroot & Tibell (1997), incertae sedis