Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Taphrinomycotina O.E. Erikss. & Winka (1997) - basal ascomycetes
     Class Taphrinomycetes O.E. Erikss. & Winka (1997)
       1 Order Protomycetales Luttr. ex D.Hawksw. & O.E. Erikss. (1986) see Order Taphrinales Gäum. & C.W.Dodge (1928)
       2 Order Taphrinales Gäum. & C.W.Dodge (1928)