Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lecanoromycetes O.E. Erikss. & Winka (1997)
       Subclass Umbilicariomycetidae Bendiksby, Hestmark & Timdal (2013) [monotypic]
         Order Umbilicariales J.C. Wei & Q.M. Zhou (2007)
           Family Fuscideaceae Hafellner (1984)
             1 Genus Fuscidea V. Wirth & Vězda (1972)
             2 Genus Hueidea Kantvilas & P.M. McCarthy (2003)
             3 Genus Lettauia D.Hawksw. & R. Sant. (1990)
             4 Genus Maronea A.Massal. (1856)
             5 Genus Orphniospora Körb. (1874)