Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Euglenobiota Leedale ex Doweld (2001)
       Subkingdom Percolobiotina Doweld, 2001
         Phylum Nucleariozoa Mikrjukov, 2000 [monotypic]
           1 Class Nucleariatea Doweld, 2001 [monotypic]