[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 Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980)
           Family Moraxellaceae Rossau et al. 1991
             Genus Branhamella Catlin 1970 (Approved Lists 1980) see Genus Moraxella Lwoff 1939 nom. cons. (Approved Lists 1980)
               Branhamella catarrhalis (Frosch and Kolle 1896) Catlin 1970 (Approved Lists 1980) see Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980)