Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Class Schizosaccharomycetes O.E. Erikss. & Winka (1997) - fission yeasts Order Schizosaccharomycetales O.E. Erikss. et al. (1993) Family Schizosaccharomycetaceae Beij. ex Klöcker (1905) Genus Schizosaccharomyces Lindner (1893)