[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Proteobacteria" Garrity et al. 2005 stat. inval. see Phylum Pseudomonadota Garrity et al. 2021
       Class Gammaproteobacteria Garrity et al. 2005
         Order Pasteurellales Garrity et al. 2005
           Family Pasteurellaceae Pohl 1981
             Genus Mannheimia Angen et al. 1999
               1 Mannheimia haemolytica (Newsom and Cross 1932) Angen et al. 1999
               2 Mannheimia glucosida Angen et al. 1999
               3 Mannheimia granulomatis (Ribeiro et al. 1990) Angen et al. 1999
               4 Mannheimia ruminalis Angen et al. 1999
               5 Mannheimia varigena Angen et al. 1999