Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Leotiomycetes O.E. Erikss. & Winka (1997)
       Order Phacidiales Bessey (1907)
         1 Family Helicogoniaceae Baral (2015)
         2 Family Phacidiaceae Fr. (1821)
         3 Family Tympanidaceae Baral & Quijada (2015)
         4 Genus Coma Nag Raj & W.B. Kendr. (1972), incertae sedis
         5 Genus Mniaecia Boud. (1885), incertae sedis