eukaryotes see Domain Eukaryota Chatton, 1925
   Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
     Subkingdom Sarcomastigota Cavalier-Smith, 1983 [paraphyletic] see [unranked] dorsates Cavalier-Smith, 2021
       Phylum Choanozoa Cavalier-Smith, 1981 [paraphyletic]
         Subphylum Paramycia Cavalier-Smith, 2012 see Kingdom Nucleariae Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, Döring, Schigel, May, Ryberg & Abarenkov, 2018
           Class Rozellidea Cavalier-Smith, 2012
             Order Rozellida Cavalier-Smith, 2012 [monotypic] see Phylum Rozellomycota Doweld (2013)
               Family Rozellidae Cavalier-Smith, 2012 [monotypic]
                 1 Genus Rozella Cornu, 1872 see Genus Rozella Cornu (1872)