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 Pasteurellales Garrity et al. 2005
                     Family Pasteurellaceaeᵀ Pohl 1981
                       Genus Mannheimia Angen et al. 1999
                         1 Mannheimia caviae Christensen et al. 2011
                         2 Mannheimia glucosida Angen et al. 1999
                         3 Mannheimia granulomatis (Ribeiro et al. 1990) Angen et al. 1999
                         4 Mannheimia haemolytica (Newsom and Cross 1932) Angen et al. 1999
                         5 Mannheimia ruminalis Angen et al. 1999
                         6 Mannheimia varigena Angen et al. 1999