Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Order Valsariales Jaklitsch, K.D.Hyde & Voglmayr (2015), incertae sedis [monotypic]
         Family Valsariaceae Jaklitsch, K.D.Hyde & Voglmayr (2015)
           1 Genus Myrmaecium Nitschke ex Fuckel (1870)
           2 Genus Valsaria Ces. & De Not. (1863)