Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Order Dyfrolomycetales K.L. Pang, K.D.Hyde & E.B.G.Jones (2013), incertae sedis [monotypic]
         Family Pleurotremataceae W. Watson (1929)
           1 Genus Dyfrolomyces K.D.Hyde, K.L. Pang, Alias, Suetrong & E.B.G.Jones (2013)
           2 Genus Melomastia Nitschke ex Sacc. (1875)
           3 Genus Pleurotrema Müll.Arg. (1885)