tangfeifania tangfeifania tangfeifania is a gram-negative, facultatively anaerobic and non-motile genus of bacteria from the family of prolixibacteraceae with one known species (tangfeifania diversioriginum). tangfeifania diversioriginum has been isolated from the saltwater lake gahai in china. tangfeifania scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: prolixibacteraceae genus: tangfeifanialiu et al. 2014 species t. diversioriginum