Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997)
         Order Microascales Luttr. ex Benny & Kimbr. (1980)
           1 Family Chadefaudiellaceae Faurel & Schotter ex Benny & Kimbr. (1980)
           2 Family Microascaceae Luttr. ex Malloch (1970)
           3 Genus Ceratocystis Ellis & Halst. (1890)
           4 Genus Cornuvesica C.D. Viljoen, M.J. Wingf. & K. Jacobs (2000)
           5 ?Genus Gondwanamyces G.J. Marais & M.J. Wingf. (1998)
           6 Genus Sphaeronaemella P.Karst. (1884)
           7 Genus Viennotidia Negru & Verona ex Rogerson (1970)