dyadobacter sediminis dyadobacter sediminis dyadobacter sediminis is a gram-negative, aerobic, rod-shaped and non-motile bacterium from the genus of dyadobacter. dyadobacter sediminis scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: spirosomaceae genus: dyadobacter species: d. sediminis binomial name dyadobacter sediministian et al. 2015 type strain cgmcc 1.12895, z12, jcm 30073