geobacter argillaceus geobacter argillaceus geobacter argillaceus is a non-spore-forming and motile bacterium from the genus of geobacter which has been isolated from kaolin clay. geobacter argillaceus scientific classification domain: bacteria phylum: thermodesulfobacteriota class: desulfuromonadia order: geobacterales family: geobacteraceae genus: geobacter species: g. argillaceus binomial name geobacter argillaceusshelobolina et al. 2007 type strain atcc baa-1139, g12, jcm 12999 synonyms "geomobilibacter argillaceus" (shelobolina et al. 2007) xu et al. 2021