geofilum rhodophaeum geofilum rhodophaeum geofilum rhodophaeum is a gram-positive and facultatively anaerobic bacterium from the genus of geofilum which has been isolated from sediments from the coast of weihai in china. geofilum rhodophaeum scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: marinilabiliaceae genus: geofilum species: g. rhodophaeum binomial name geofilum rhodophaeummu et al. 2017 type strain hf401, kctc 42595, mccc 1h00119 synonyms geofilum rhodophaea