living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Eumycota see Kingdom Eumycota
           Subdivision Ascomycotina Ainsw. (1966) see Phylum Ascomycota Caval.-Sm. (1998)
             Class Hemiascomycetes Engl. (1903) see Class Saccharomycetes G.Winter (1880)
               Order Endomycetales see Order Saccharomycetales Luerss. (1877)
                 Family Saccharomycetaceae G.Winter (1881)
                   Genus Nadsonia Syd. (1912)
                     Nadsonia fulvescens (Nadson & Konok.) Syd.