[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980)
           Family Moraxellaceae Rossau et al. 1991
             Genus Moraxella Lwoff 1939 (Approved Lists 1980)
               .1 Subgenus [Moraxella] (Lwoff 1939) Bøvre 1979 nom. inval. see Genus Moraxella Lwoff 1939 (Approved Lists 1980)
               .2 Subgenus [Branhamella] (Catlin 1970) Bøvre 1979 nom. inval. see Genus Moraxella Lwoff 1939 (Approved Lists 1980)
               01 Moraxella lacunata (Eyre 1900) Lwoff 1939 (Approved Lists 1980)
               02 Moraxella atlantae Bøvre et al. 1976 (Approved Lists 1980)
               03 Moraxella boevrei Kodjo et al. 1997
               04 Moraxella bovis (Hauduroy et al. 1937) Murray 1948 (Approved Lists 1980)
               05 Moraxella canis Jannes et al. 1993
               06 Moraxella caprae Kodjo et al. 1995
               07 Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980)
               08 Moraxella caviae (Pelczar 1953) Henriksen and Bøvre 1968 (Approved Lists 1980)
               09 Moraxella cuniculi (Berger 1962) Bøvre and Hagen 1984
               10 Moraxella equi Hughes and Pugh 1970 (Approved Lists 1980)
               11 Moraxella lincolnii Vandamme et al. 1993
               12 Moraxella nonliquefaciens (Scarlett 1916) Lwoff 1939 (Approved Lists 1980)
               13 Moraxella oblonga Xie and Yokota 2005
               14 Moraxella osloensis Bøvre and Henriksen 1967 (Approved Lists 1980)
               15 Moraxella ovis (Lindqvist 1960) Henriksen and Bøvre 1968 (Approved Lists 1980)
               16 Moraxella saccharolytica Flamm 1956 (Approved Lists 1980)