thiohalospira thiohalospira thiohalospira is an obligately chemolithoautotrophic genus of bacteria from the family of ectothiorhodospiraceae. thiohalospira scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: ectothiorhodospiraceae genus: thiohalospirasorokin et al. 2008 type species thiohalospira halophila species t. alkaliphila t. halophila