[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 Actinobacillus Brumpt 1910 (Approved Lists 1980)
               01 Actinobacillus lignieresii Brumpt 1910 (Approved Lists 1980)
               02 Actinobacillus arthritidis Christensen et al. 2002
               03 Actinobacillus capsulatus Arseculeratne 1962 (Approved Lists 1980)
               04 Actinobacillus delphinicola Foster et al. 1996
               05 [Actinobacillus equuli] (van Straaten 1918) Haupt 1934 (Approved Lists 1980)
               06 Actinobacillus hominis Friis-Møller 1985
               07 Actinobacillus indolicus Møller et al. 1996
               08 Actinobacillus minor Møller et al. 1996
               09 Actinobacillus muris Bisgaard 1988
               10 Actinobacillus pleuropneumoniae (Shope 1964) Pohl et al. 1983
               11 Actinobacillus porcinus Møller et al. 1996
               12 Actinobacillus rossii Sneath and Stevens 1990
               13 Actinobacillus scotiae Foster et al. 1998
               14 Actinobacillus seminis (ex Baynes and Simmons 1960) Sneath and Stevens 1990
               15 Actinobacillus succinogenes Guettler et al. 1999
               16 Actinobacillus suis van Dorssen and Jaartsveld 1962 (Approved Lists 1980)
               17 Actinobacillus ureae (Jones 1962) Mutters et al. 1986