Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Eurotiomycetes O.E. Erikss. & Winka (1997)
       1 Subclass Chaetothyriomycetidae Doweld (2001)
       2 Subclass Eurotiomycetidae Doweld (2001)
       3 Order Mycocaliciales Tibell & Wedin (2000)