Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum "Proteobacteria" Craig et al. 2010
               Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic]
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Pasteurellales Garrity et al. 2005 [monotypic]
                     Family Pasteurellaceaeᵀ Pohl 1981
                       Genus Haemophilus Winslow et al. 1917 (Approved Lists 1980)
                         01 Haemophilus aegyptius (Trevisan 1889) Pittman and Davis 1950 (Approved Lists 1980)
                         02 Haemophilus ducreyi (Neveu-Lemaire 1921) Bergey et al. 1923 (Approved Lists 1980)
                         03 Haemophilus felis Inzana et al. 1999
                         04 Haemophilus haemoglobinophilus (Lehmann and Neumann 1907) Murray 1939 (Approved Lists 1980)
                         05 Haemophilus haemolyticus Bergey et al. 1923 (Approved Lists 1980)
                         06 Haemophilus influenzae (Lehmann and Neumann 1896) Winslow et al. 1917 (Approved Lists 1980)
                         07 Haemophilus paracuniculus Targowski and Targowski 1984
                         08 Haemophilus parahaemolyticus Pittman 1953 (Approved Lists 1980)
                         09 Haemophilus parainfluenzae Rivers 1922 (Approved Lists 1980)
                         10 Haemophilus paraphrohaemolyticus Zinnemann et al. 1971 (Approved Lists 1980)
                         11 Haemophilus parasuis Biberstein and White 1969 (Approved Lists 1980)
                         12 Haemophilus piscium Snieszko et al. 1950 (Approved Lists 1980)
                         13 Haemophilus pittmaniae Nørskov-Lauritsen et al. 2005
                         14 Haemophilus sputorum Nørskov-Lauritsen et al. 2012