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 Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Cardiobacteriales Garrity et al. 2005
                     Family Cardiobacteriaceaeᵀ Dewhirst et al. 1990
                       Genus Cardiobacteriumᵀ Slotnick and Dougherty 1964 (Approved Lists 1980)
                         Cardiobacterium valvarum Han et al. 2004