Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Taphrinomycotina O.E. Erikss. & Winka (1997) - basal ascomycetes Class Taphrinomycetes O.E. Erikss. & Winka (1997) [monotypic] Order Taphrinales Gäum. & C.W.Dodge (1928) Family Protomycetaceae Gray (1821) Genus Saitoëlla Goto, Sugiy., Hamam. & Komag. (1987)