Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Superclass Leotiomyceta O.E. Erikss. & Winka (1997)
       Class Sordariomycetes O.E. Erikss. & Winka (1997)
         Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997)
           1 Order Halosphaeriales Kohlm. (1986) see Order Microascales Luttr. ex Benny & Kimbr. (1980)
           2 Order Hypocreales Lindau (1897)
           3 Order Microascales Luttr. ex Benny & Kimbr. (1980)