dyadobacter tibetensis dyadobacter tibetensis dyadobacter tibetensis is a gram-negative, aerobic, rod-shaped and non-motile bacterium from the genus of dyadobacter which has been isolated from a glacial ice core from the tibetan plateau in china. dyadobacter tibetensis scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: spirosomaceae genus: dyadobacter species: d. tibetensis binomial name dyadobacter tibetensisshen et al. 2013 type strain cgmcc 1.12215, jcm 18589, y620-1