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
                       01 Genus Actinobacillus Brumpt 1910 (Approved Lists 1980)
                       02 Genus Aggregatibacter Nørskov-Lauritsen and Kilian 2006
                       03 Genus Alitibacter Bisgaard and Christensen 2025
                       04 Genus Avibacterium Blackall et al. 2005
                       05 Genus Basfia Kuhnert et al. 2010 [monotypic]
                       06 Genus Bibersteinia Blackall et al. 2007 [monotypic]
                       07 Genus Bisgaardia Foster et al. 2011 [monotypic]
                       08 Genus Caviibacterium Adhikary et al. 2018
                       09 Genus Chelonobacter Gregersen et al. 2009 [monotypic]
                       10 Genus Conservatibacter Adhikary et al. 2018
                       11 Genus Cricetibacter Christensen et al. 2014
                       12 Genus Exercitatus Christensen et al. 2023
                       13 Genus Frederiksenia Korczak et al. 2014 [monotypic]
                       14 Genus Gallibacterium Christensen et al. 2003
                       15 Genus Glaesserella Dickerman et al. 2020
                       16 Genus Haemophilus corrig. Winslow et al. 1917 (Approved Lists 1980)
                       17 Genus Histophilus Angen et al. 2003 [monotypic]
                       18 Genus Lonepinella Osawa et al. 1996 [monotypic]
                       19 Genus Mannheimia Angen et al. 1999
                       20 Genus Mergibacter De Luca et al. 2023
                       21 Genus Mesocricetibacter Christensen et al. 2014 [monotypic]
                       22 Genus Muribacter Nicklas et al. 2015
                       23 Genus Necropsobacter Christensen et al. 2011 [monotypic]
                       24 Genus Nicoletella Kuhnert et al. 2005 [monotypic]
                       25 Genus Otariodibacter Hansen et al. 2012 [monotypic]
                       26 Genus Pasteurellaᵀ Trevisan 1887 nom. cons. (Approved Lists 1980)
                       27 Genus Phocoenobacter Foster et al. 2000 [monotypic]
                       28 Genus Reella Christensen et al. 2026
                       29 Genus Rodentibacter Adhikary et al. 2017
                       30 Genus Seminibacterium Vela et al. 2015
                       31 Genus Spirabiliibacterium Bisgaard and Christensen 2021
                       32 Genus Testudinibacter Hansen et al. 2016
                       33 Genus Ursidibacter Hansen et al. 2015
                       34 Genus Vespertiliibacter Mühldorfer et al. 2014
                       35 Genus Volucribacter Christensen et al. 2004
                       36 Genus "Emayella" Meyer et al. 2024 nom. inval.