Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Sordariomycetidae O.E. Erikss. & Winka (1997)
         Order Ophiostomatales Benny & Kimbr. (1980)
           Family Ophiostomataceae Nannf. (1932)
             1 Genus Fragosphaeria Shear (1923)
             2 Genus Klasterskya Petr. (1940)
             3 Genus Ophiostoma Syd. & P.Syd. (1919)
             4 Genus Spumatoria Massee & E.S. Salmon (1901)
             5 Genus Subbaromyces Hesselt. (1953)