Taxonomy of the order Spirochaetales.

Table 1. Taxonomy of the order Spirochaetales. The family Brachyspiraceae was formerly called Serpulinaceae and members of the genus Brachyspira were first assumed to belong to the genus Treponema, but they have been renamed three times Treponema --> Serpula --> Serpulina --> Brachyspira.

Family:	Brachyspiraceae	Leptospiraceae	Spirochaetaceae
Genus:	Brachyspira	Leptonema	Borrelia
		Leptospira	Brevinema
			Clevelandina
			Cristispira
			Diplocalyx
			Hollandina
			Pillotina
			Spirochaeta
			Treponema

• Fig. 1. Phylogeny of the order Spirochaetales.
• Table 2. Species of the genus Brachyspira.
• Taxonomy and Phylogeny