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