Domain Bacteria Woese et al. 1990
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   Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
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     Class "Betaproteobacteria" Garrity et al. 2001 nom. ined. see Class Betaproteobacteria Garrity et al. 2006
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       Order "Methylophilales" nom. inval. see Order Methylophilales Garrity et al. 2006
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         1 Family "Methylophilaceae" nom. inval. see Family Methylophilaceae Garrity et al. 2006
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