<?xml version="1.0" ?>
<!--
  (c) 2024, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from the U.S. Dept. of Energy).
  All rights reserved.

  CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit.
  LOCKSS system has permission to ingest, preserve, and serve this Archival Unit.

  This content is licensed under a Creative Commons Attribution 3.0 International license: https://creativecommons.org/licenses/by/3.0/
-->
<taxon doi="10.1601/tx.14421" rank="class" xmlns="http://namesforlife.com/ns/taxon">
  <nomenclature xmlns="http://namesforlife.com/ns/common">
    <name-status-group>
      <identifier doi="10.1601/nm.14421" rank="class" taxon-doi="10.1601/tx.14421">Deltabacteria</identifier>
      <authority>Cavalier-Smith 2002</authority>
      <status candidatus="false" conserved="false" current-name="Deltaproteobacteria" current-name-doi="10.1601/nm.3456" illegitimate="true" is-current="false" rejected="true" revived="false" status-code="NVP" />
    </name-status-group>
  </nomenclature>
  <nomenclatural-type xmlns="http://namesforlife.com/ns/common" />
  <taxonomic-equivalence />
  <ancestor doi="10.1601/tx.0" rank="root">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.0" rank="root" taxon-doi="10.1601/tx.0">Universal Root</identifier>
        <authority>Woese et al. 1990</authority>
        <status candidatus="false" conserved="false" current-name="Universal Root" current-name-doi="10.1601/nm.0" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
    </nomenclature>
    <ancestor doi="10.1601/tx.419" rank="domain">
      <nomenclature xmlns="http://namesforlife.com/ns/common">
        <name-status-group>
          <identifier doi="10.1601/nm.419" rank="domain" taxon-doi="10.1601/tx.419">Bacteria</identifier>
          <authority>(None 2015) Woese et al. 1990</authority>
          <status candidatus="false" conserved="false" current-name="Bacteria" current-name-doi="10.1601/nm.419" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
        </name-status-group>
      </nomenclature>
      <ancestor doi="10.1601/tx.808" rank="phylum">
        <nomenclature xmlns="http://namesforlife.com/ns/common">
          <name-status-group>
            <identifier doi="10.1601/nm.808" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Proteobacteria</identifier>
            <authority>(sic) Garrity et al. 2021</authority>
            <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
          </name-status-group>
          <name-status-group>
            <identifier doi="10.1601/nm.40185" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Pseudomonadota</identifier>
            <authority>corrig. Garrity et al. 2021</authority>
            <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
          </name-status-group>
          <name-status-group>
            <identifier doi="10.1601/nm.31608" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Alphaproteobacteriota</identifier>
            <authority>(sic) Garrity et al. 2021</authority>
            <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
          </name-status-group>
        </nomenclature>
        <ancestor doi="10.1601/tx.14421" rank="class">
          <nomenclature xmlns="http://namesforlife.com/ns/common">
            <name-status-group>
              <identifier doi="10.1601/nm.14421" rank="class" taxon-doi="10.1601/tx.14421">Deltabacteria</identifier>
              <authority>Cavalier-Smith 2002</authority>
              <status candidatus="false" conserved="false" current-name="Deltaproteobacteria" current-name-doi="10.1601/nm.3456" illegitimate="true" is-current="false" rejected="true" revived="false" status-code="NVP" />
            </name-status-group>
          </nomenclature>
        </ancestor>
      </ancestor>
    </ancestor>
  </ancestor>
  <parent doi="10.1601/tx.808" rank="phylum">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.808" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Proteobacteria</identifier>
        <authority>(sic) Garrity et al. 2021</authority>
        <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
      <name-status-group>
        <identifier doi="10.1601/nm.40185" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Pseudomonadota</identifier>
        <authority>corrig. Garrity et al. 2021</authority>
        <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
      <name-status-group>
        <identifier doi="10.1601/nm.31608" nomenclatural-type="10.1601/tx.2552" nomenclatural-type-exemplar="10.1601/ex.2553" rank="phylum" taxon-doi="10.1601/tx.808">Alphaproteobacteriota</identifier>
        <authority>(sic) Garrity et al. 2021</authority>
        <status candidatus="false" conserved="false" current-name="Pseudomonadota" current-name-doi="10.1601/nm.40185" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
    </nomenclature>
  </parent>
  <sibling doi="10.1601/tx.2068" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.2068" nomenclatural-type="10.1601/tx.2550" nomenclatural-type-exemplar="10.1601/ex.2553" rank="class" taxon-doi="10.1601/tx.2068">Gammaproteobacteria</identifier>
        <authority>Garrity et al. 2005 emend. Williams and Kelly 2013</authority>
        <status candidatus="false" conserved="false" current-name="Gammaproteobacteria" current-name-doi="10.1601/nm.2068" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.1616" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.1616" nomenclatural-type="10.1601/tx.1617" nomenclatural-type-exemplar="10.1601/ex.2584" rank="class" taxon-doi="10.1601/tx.1616">Betaproteobacteria</identifier>
        <authority>Garrity et al. 2006 emend. Boden et al. 2017</authority>
        <status candidatus="false" conserved="false" current-name="Betaproteobacteria" current-name-doi="10.1601/nm.1616" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.3456" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.3456" nomenclatural-type="10.1601/tx.3690" nomenclatural-type-exemplar="10.1601/ex.3720" rank="class" taxon-doi="10.1601/tx.3456">Deltaproteobacteria</identifier>
        <authority>Kuever et al. 2006 emend. Hahn et al. 2017</authority>
        <status candidatus="false" conserved="false" current-name="Deltaproteobacteria" current-name-doi="10.1601/nm.3456" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.809" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.809" nomenclatural-type="10.1601/tx.1248" nomenclatural-type-exemplar="10.1601/ex.1251" rank="class" taxon-doi="10.1601/tx.809">Alphaproteobacteria</identifier>
        <authority>Garrity et al. 2006</authority>
        <status candidatus="false" conserved="false" current-name="Alphaproteobacteria" current-name-doi="10.1601/nm.809" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.3783" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.3783" nomenclatural-type="10.1601/tx.3784" nomenclatural-type-exemplar="10.1601/ex.3787" rank="class" taxon-doi="10.1601/tx.3783">Epsilonproteobacteria</identifier>
        <authority>Garrity et al. 2006</authority>
        <status candidatus="false" conserved="false" current-name="Epsilonproteobacteria" current-name-doi="10.1601/nm.3783" illegitimate="true" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.21206" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.21206" rank="class" taxon-doi="10.1601/tx.21206">Zetaproteobacteria</identifier>
        <authority>(sic) Makita et al. 2017</authority>
        <status candidatus="false" conserved="false" current-name="Mariprofundia" current-name-doi="10.1601/nm.35076" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
      <name-status-group>
        <identifier doi="10.1601/nm.35076" rank="class" taxon-doi="10.1601/tx.21206">Mariprofundia</identifier>
        <authority>corrig. Makita et al. 2017</authority>
        <status candidatus="false" conserved="false" current-name="Mariprofundia" current-name-doi="10.1601/nm.35076" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.24436" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.24436" nomenclatural-type="10.1601/tx.2196" nomenclatural-type-exemplar="10.1601/ex.1893" rank="class" taxon-doi="10.1601/tx.24436">Acidithiobacillia</identifier>
        <authority>Williams and Kelly 2013</authority>
        <status candidatus="false" conserved="false" current-name="Acidithiobacillia" current-name-doi="10.1601/nm.24436" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.25842" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.25842" nomenclatural-type="10.1601/tx.25843" nomenclatural-type-exemplar="10.1601/ex.25846" rank="class" taxon-doi="10.1601/tx.25842">Oligoflexia</identifier>
        <authority>Nakai et al. 2014 emend. Waite et al. 2020</authority>
        <status candidatus="false" conserved="false" current-name="Oligoflexia" current-name-doi="10.1601/nm.25842" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.30185" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.30185" nomenclatural-type="10.1601/tx.1867" nomenclatural-type-exemplar="10.1601/ex.1870" rank="class" taxon-doi="10.1601/tx.30185">Hydrogenophilalia</identifier>
        <authority>Boden et al. 2017</authority>
        <status candidatus="false" conserved="false" current-name="Hydrogenophilalia" current-name-doi="10.1601/nm.30185" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <child doi="10.1601/tx.3690" rank="order">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.3690" nomenclatural-type="10.1601/tx.3719" nomenclatural-type-exemplar="10.1601/ex.3720" rank="order" taxon-doi="10.1601/tx.3690">Myxococcales</identifier>
        <authority>Tchan et al. 1948 (Approved Lists 1980) emend. Waite et al. 2020</authority>
        <status candidatus="false" conserved="false" current-name="Myxococcales" current-name-doi="10.1601/nm.3690" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </child>
  <exemplars xmlns="http://namesforlife.com/ns/exemplar" />
  <bibliography xmlns="http://namesforlife.com/ns/reference">
    <reference id="rid.7524">
      <citation citation-type="journal">
        <authors>
          <person-name>
            <surname>Cavalier-Smith</surname>
            <given-names>T.</given-names>
          </person-name>
        </authors>
        <article-title>The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification.</article-title>
        <year>2002</year>
        <volume>52</volume>
        <issue>1</issue>
        <fpage>7</fpage>
        <lpage>76</lpage>
        <source id="117">International Journal of Systematic and Evolutionary Microbiology</source>
        <abbrev>Int J Syst Evol Microbiol</abbrev>
        <issn>1466-5026</issn>
        <essn>1466-5034</essn>
        <pub-id pub-id-type="doi">10.1099/00207713-52-1-7</pub-id>
        <pub-id pub-id-type="pmid">11837318</pub-id>
      </citation>
    </reference>
    <reference id="rid.15557">
      <citation citation-type="journal">
        <authors>
          <person-name>
            <surname>Judicial Commission of the International Committee on Systematics of Prokaryotes</surname>
            <given-names />
          </person-name>
        </authors>
        <article-title>Names at the rank of class, subclass and order, their typification and current status: Supplementary information to Opinion 79.</article-title>
        <year>2014</year>
        <volume>64</volume>
        <issue>10</issue>
        <fpage>3599</fpage>
        <lpage>3602</lpage>
        <source id="117">International Journal of Systematic and Evolutionary Microbiology</source>
        <abbrev>Int J Syst Evol Microbiol</abbrev>
        <issn>1466-5026</issn>
        <essn>1466-5034</essn>
        <pub-id pub-id-type="doi">10.1099/ijs.0.069310-0</pub-id>
        <pub-id pub-id-type="pmid">25288668</pub-id>
      </citation>
    </reference>
  </bibliography>
  <annotation xmlns="http://namesforlife.com/ns/common">
    <snapshot date="2024-04-22" date-formatted="April 22, 2024" time="18:50:21" time-formatted="18:50 PM" />
    <modified curator="Charles Parker" date="2017-01-18" date-formatted="January 18, 2017" time="14:45:13" time-formatted="14:45 PM" />
    <created curator="Sarah Wigley" date="2009-06-26" date-formatted="June 26, 2009" time="15:54:27" time-formatted="15:54 PM" />
  </annotation>
</taxon>
