phaeobacter phaeobacter in taxonomy, phaeobacter is a genus of the rhodobacteraceae. phaeobacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: phaeobactermartens et al. 2006 species phaeobacter gallaeciensis (ruiz-ponte et al. 1998) martens et al. 2006 phaeobacter inhibens martens et al. 2006 phaeobacter italicus (vandecandelaere et al. 2009) wirth and whitman 2018 "phaeobacter marinintestinus" lee et al. 2015 phaeobacter piscinae sonnenschein et al. 2017 phaeobacter porticola breider et al. 2017 synonyms nautella vandecandelaere et al. 2009