Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Xylariomycetidae O.E. Erikss. & Winka (1997)
         Order Xylariales Nannf. (1932)
           Family Microdochiaceae Hern.-Restr., Crous & J.Z. Groenew. (2016)
             1 Genus Idriella P.E. Nelson & S. Wilh. (1956)
             2 Genus Microdochium Syd. (1924)
             3 Genus Selenodriella R.F.Castañeda & W.B. Kendr. (1990)