The Rhodocyclales [1] are an order of the class Betaproteobacteria in the phylum Pseudomonadota ("Proteobacteria").

[2] Following a major reclassification of the class in 2017, the previously monofamilial order was split into three families: The genus Azovibrio also falls within the order but is incertae sedis, falling between the Zoogloeaeceae and the Azonexaceae.

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