Class "Gammaproteobacteria" nom. inval. see Class Gammaproteobacteria Garrity et al. 2005 01 Family Alteromonadaceae Ivanova and Mikhailov 2001 02 Family Pseudoalteromonadaceae Ivanova et al. 2004 03 Family Colwelliaceae Ivanova et al. 2004 04 Family Shewanellaceae Ivanova et al. 2004 05 Family Moritellaceae Ivanova et al. 2004 06 Family Ferrimonadaceae Ivanova et al. 2004 07 Family Idiomarinaceae Ivanova et al. 2004 08 Family Psychromonadaceae Ivanova et al. 2004 09 Genus Hyphomicrobium Stutzer and Hartleb 1898 (Approved Lists 1980) 10 Genus Photobacterium Beijerinck 1889 (Approved Lists 1980)