Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Order Calosphaeriales M.E.Barr (1983)
         Family Calosphaeriaceae Munk (1957)
           ?Genus Sulcatistroma A.W.Ramaley (2005)