Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Pseudomonadotaᵀ Garrity et al. 2021
                 Class Betaproteobacteria Garrity et al. 2006
                   Order Burkholderialesᵀ Garrity et al. 2006
                     Family Alcaligenaceae De Ley et al. 1986
                       Genus Castellaniella Kämpfer et al. 2006
                         1 Castellaniella caeni Liu et al. 2008
                         2 Castellaniella daejeonensis Lee et al. 2010
                         3 Castellaniella defragrans (Foss et al. 1998) Kämpfer et al. 2006
                         4 Castellaniella denitrificans Kämpfer et al. 2006
                         5 Castellaniella ginsengisoli Kim et al. 2009
                         6 Castellaniella hirudinis Glaeser et al. 2013