Class "Gammaproteobacteria" nom. inval. see Class Gammaproteobacteria Garrity et al. 2005
   Family Colwelliaceae Ivanova et al. 2004
     1 Genus Colwellia Deming et al. 1988
     2 Genus Thalassomonas Macián et al. 2001
     3 Genus Oceanimonas corrig. Brown et al. 2001
     4 Genus Oceanisphaera Romanenko et al. 2003