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)
         Family Arctomiaceae Th.Fr. (1860)
           1 Genus Arctomia Th.Fr. (1860)
           2 Genus Gregorella Lumbsch (2005)
           3 Genus Wawea Henssen & Kantvilas (1985)