Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Saccharomycotina O.E. Erikss. & Winka (1997) - budding yeasts
     Class Saccharomycetes G.Winter (1880)
       Order Saccharomycetales Luerss. (1877)
         Family Saccharomycodaceae Kudrjanzev (1960)
           1 ?Genus Hanseniaspora Zikes (1911)
           2 ?Genus Nadsonia Syd. (1912)
           3 Genus Saccharomycodes E.C. Hansen (1904)
           4 ?Genus Wickerhamia Soneda (1960)