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 Saccharomycopsidaceae Arx & van der Walt (1987)
           1 ?Genus Ambrosiozyma Van der Walt (1972)
           2 Genus Saccharomycopsis Schiønning (1903)