Spirochaetales Buchanan 1917 (Approved Lists 1980) emend. Gupta et al. 2013 Dataset NCBI Taxonomy Classification phylum Spirochaetota class Spirochaetia order Spirochaetales Name Homonyms Spirochaetales Spirochaetales Buchanan 1917 (Approved Lists 1980) emend. Gupta et al. 2013