Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Domain Eucaryota]
             [Subdomain Chlorota Doweld (2001)]
               [Kingdom Peridiniobiota Starobogatov ex Doweld (2001)]
                 [Subkingdom Parameciobiotina Starobogatov, 1986 [monotypic]]
                   [Phylum Parameciozoaᵀ Kussakin & Drozdov, 1998]
                     [Subphylum Parameciozoinaᵀ Doweld, 2001]
                       1 [Class Podophryatea Doweld, 2001]
                       2 [Class Nassulatea Doweld, 2001]
                       3 [Class Colpodatea Small & Lynn, 1981]
                       4 [Class Prorodontatea Doweld, 2001]
                       5 [Class Plagiopylatea Small & Lynn, 1985]
                       6 [Class Parameciateaᵀ Doweld, 2001]