saprospirales saprospirales saprospirales is an order of bacteria in the phylum bacteroidota. saprospirales scientific classification domain: bacteria phylum: bacteroidota class: saprospiriahahnke et al. 2018 order: saprospiraleshahnke et al. 2017 families lewinellaceae hahnke et al. 2017 saprospiraceae krieg et al. 2012