desulfospira desulfospira desulfospira is a gram-negative and anaerobic bacteria genus from the family of desulfobacteraceae. desulfospira scientific classification domain: bacteria phylum: thermodesulfobacteriota class: desulfobacteria order: desulfobacterales family: desulfobacteraceae genus: desulfospirafinster et al. 1997 type species desulfospira joergensenii species d. joergensenii