Bacteria  >  Pseudomonadati  >  Pseudomonadota  >  Alphaproteobacteria  >  Rhodospirillales

Family	Genus	Species
Aestuariispiraceae	5	18
Azospirillaceae	10	486
Candidatus Hepatincolaceae	1	6
Dongiaceae	3	30
Kiloniellaceae	4	23
Magnetospiraceae	0	2
Magnetospirillaceae	1	7
Magnetovibrionaceae	2	7
Novispirillaceae	5	37
Oceanibaculaceae	1	9
Oleispirillaceae	1	1
Rhodospirillaceae	25	499
Rhodovibrionaceae	9	69
Roseiterribacteraceae	1	1
Shumkoniaceae	1	1
Stellaceae	2	10
Terasakiellaceae	1	12
Thalassobaculaceae	2	41
Thalassospiraceae	2	297
Zavarziniaceae	1	6