Class Proteobacteria Stackebrandt et al. 1988 nom. rej. see Phylum Proteobacteria Garrity and Holt 2001 nom. nud.
   Subclass gamma see Class Gammaproteobacteria "Garrity and Holt 2001" nom. nud.
     Family Alteromonadaceae Ivanova and Mikhailov 2001
       Genus Pseudomonas Migula 1894 nom. cons. (Approved Lists 1980)
         "Pseudomonas piscicida" (Bein) J.D. Buck et al. 1963 see Pseudoalteromonas piscicida (ex Bein 1954) Gauthier et al. 1995