[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 Avibacterium Blackall et al. 2005
               1 Avibacterium gallinarum (Hall et al. 1955) Blackall et al. 2005
               2 Avibacterium avium (Hinz and Kunjara 1977) Blackall et al. 2005
               3 Avibacterium paragallinarum (Biberstein and White 1969) Blackall et al. 2005
               4 Avibacterium volantium (Mutters et al. 1985) Blackall et al. 2005