Domain Eucaryota
Count: [*†*] 11k;97p;151c;401o;832f;181g;3s; †13p;32c;87o;175f;72g;3s
   Subdomain Chlorota Doweld (2001)
  Count: [*†*] 5k;64p;91c;384o;817f;166g;3s; †13p;32c;87o;175f;72g;3s [20 Nov 2022]
     Kingdom Peridiniobiota Starobogatov ex Doweld (2001)
    Count: [*] 7p;21c;24o;18f;17g [16 Sep 2022]
       Subkingdom Parameciobiotina Starobogatov, 1986 [monotypic]
      Count: [*] 1p;10c;18o;12f;12g [16 Sep 2022]
         Phylum Parameciozoa Kussakin & Drozdov, 1998
        Count: [*] 10c;18o;12f;12g [16 Sep 2022]
           Subphylum Spirostomozoina Doweld, 2001
          Count: [*] 2c;2o;2f;2g [16 Sep 2022]
             Class Spirostomatea Doweld, 2001 [monotypic]
            Count: [*] 1o;1f;1g [21 Nov 2022]
               Order Spirostomida Doweld, 2001 [monotypic]
              Count: [*] 1f;1g [21 Nov 2022]
                 1 Family Spirostomidae Stein, 1867
                Count: [*] 1g