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<taxon doi="10.1601/tx.144" rank="order" xmlns="http://namesforlife.com/ns/taxon">
  <nomenclature xmlns="http://namesforlife.com/ns/common">
    <name-status-group>
      <identifier doi="10.1601/nm.144" nomenclatural-type="10.1601/tx.146" nomenclatural-type-exemplar="10.1601/ex.147" rank="order" taxon-doi="10.1601/tx.144">Methanococcales</identifier>
      <authority>Balch and Wolfe 1981</authority>
      <status candidatus="false" conserved="false" current-name="Methanococcales" current-name-doi="10.1601/nm.144" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
    </name-status-group>
  </nomenclature>
  <nomenclatural-type nomenclatural-type-exemplar="10.1601/ex.147" xmlns="http://namesforlife.com/ns/common">
    <name-status-group>
      <identifier doi="10.1601/nm.146" nomenclatural-type="10.1601/tx.147" nomenclatural-type-exemplar="10.1601/ex.147" rank="genus" taxon-doi="10.1601/tx.146">Methanococcus</identifier>
      <authority>Kluyver and van Niel 1936 (Approved Lists 1980) emend. Mah and Kuhn 1984</authority>
      <status candidatus="false" conserved="true" current-name="Methanococcus" current-name-doi="10.1601/nm.146" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
    </name-status-group>
  </nomenclatural-type>
  <taxonomic-equivalence>
    <related-taxon accession="2182" nomos="NCBI Taxonomy" rank="order" relation="exactMatch" />
  </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.1" rank="domain">
      <nomenclature xmlns="http://namesforlife.com/ns/common">
        <name-status-group>
          <identifier doi="10.1601/nm.1" rank="domain" taxon-doi="10.1601/tx.1">Archaea</identifier>
          <authority>Woese et al. 1990</authority>
          <status candidatus="false" conserved="false" current-name="Archaea" current-name-doi="10.1601/nm.1" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
        </name-status-group>
      </nomenclature>
      <ancestor doi="10.1601/tx.90" rank="phylum">
        <nomenclature xmlns="http://namesforlife.com/ns/common">
          <name-status-group>
            <identifier doi="10.1601/nm.90" nomenclatural-type="10.1601/tx.94" nomenclatural-type-exemplar="10.1601/ex.95" rank="phylum" taxon-doi="10.1601/tx.90">Euryarchaeota</identifier>
            <authority>(sic) Garrity and Holt 2001</authority>
            <status candidatus="false" conserved="false" current-name="Methanobacteriota" current-name-doi="10.1601/nm.31627" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
          </name-status-group>
          <name-status-group>
            <identifier doi="10.1601/nm.31627" nomenclatural-type="10.1601/tx.94" nomenclatural-type-exemplar="10.1601/ex.95" rank="phylum" taxon-doi="10.1601/tx.90">Methanobacteriota</identifier>
            <authority>corrig. Garrity and Holt 2001</authority>
            <status candidatus="false" conserved="false" current-name="Methanobacteriota" current-name-doi="10.1601/nm.31627" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
          </name-status-group>
        </nomenclature>
        <ancestor doi="10.1601/tx.143" rank="class">
          <nomenclature xmlns="http://namesforlife.com/ns/common">
            <name-status-group>
              <identifier doi="10.1601/nm.143" nomenclatural-type="10.1601/tx.144" nomenclatural-type-exemplar="10.1601/ex.147" rank="class" taxon-doi="10.1601/tx.143">Methanococci</identifier>
              <authority>Boone 2002</authority>
              <status candidatus="false" conserved="false" current-name="Methanococci" current-name-doi="10.1601/nm.143" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
            </name-status-group>
          </nomenclature>
          <ancestor doi="10.1601/tx.144" rank="order">
            <nomenclature xmlns="http://namesforlife.com/ns/common">
              <name-status-group>
                <identifier doi="10.1601/nm.144" nomenclatural-type="10.1601/tx.146" nomenclatural-type-exemplar="10.1601/ex.147" rank="order" taxon-doi="10.1601/tx.144">Methanococcales</identifier>
                <authority>Balch and Wolfe 1981</authority>
                <status candidatus="false" conserved="false" current-name="Methanococcales" current-name-doi="10.1601/nm.144" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
              </name-status-group>
            </nomenclature>
          </ancestor>
        </ancestor>
      </ancestor>
    </ancestor>
  </ancestor>
  <parent doi="10.1601/tx.143" rank="class">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.143" nomenclatural-type="10.1601/tx.144" nomenclatural-type-exemplar="10.1601/ex.147" rank="class" taxon-doi="10.1601/tx.143">Methanococci</identifier>
        <authority>Boone 2002</authority>
        <status candidatus="false" conserved="false" current-name="Methanococci" current-name-doi="10.1601/nm.143" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </parent>
  <sibling doi="10.1601/tx.226" rank="order">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.226" nomenclatural-type="10.1601/tx.228" nomenclatural-type-exemplar="10.1601/ex.229" rank="order" taxon-doi="10.1601/tx.226">Methanosarcinales</identifier>
        <authority>Boone et al. 2002</authority>
        <status candidatus="false" conserved="false" current-name="Methanosarcinales" current-name-doi="10.1601/nm.226" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.173" rank="order">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.173" nomenclatural-type="10.1601/tx.175" nomenclatural-type-exemplar="10.1601/ex.103" rank="order" taxon-doi="10.1601/tx.173">Methanomicrobiales</identifier>
        <authority>Balch and Wolfe 1981</authority>
        <status candidatus="false" conserved="false" current-name="Methanomicrobiales" current-name-doi="10.1601/nm.173" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <sibling doi="10.1601/tx.34190" rank="order">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.34190" nomenclatural-type="10.1601/tx.34192" nomenclatural-type-exemplar="10.1601/ex.34193" rank="order" taxon-doi="10.1601/tx.34190">Altiarchaeales</identifier>
        <authority>(sic) Probst et al. 2014</authority>
        <status candidatus="true" conserved="false" current-name="Altarchaeales" current-name-doi="10.1601/nm.35078" illegitimate="false" is-current="false" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
      <name-status-group>
        <identifier doi="10.1601/nm.35078" nomenclatural-type="10.1601/tx.34192" nomenclatural-type-exemplar="10.1601/ex.34193" rank="order" taxon-doi="10.1601/tx.34190">Altarchaeales</identifier>
        <authority>corrig. Probst et al. 2014</authority>
        <status candidatus="true" conserved="false" current-name="Altarchaeales" current-name-doi="10.1601/nm.35078" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
    </nomenclature>
  </sibling>
  <child doi="10.1601/tx.145" rank="family">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.145" nomenclatural-type="10.1601/tx.146" nomenclatural-type-exemplar="10.1601/ex.147" rank="family" taxon-doi="10.1601/tx.145">Methanococcaceae</identifier>
        <authority>Balch and Wolfe 1981</authority>
        <status candidatus="false" conserved="false" current-name="Methanococcaceae" current-name-doi="10.1601/nm.145" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </child>
  <child doi="10.1601/tx.163" rank="family">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.163" nomenclatural-type="10.1601/tx.164" nomenclatural-type-exemplar="10.1601/ex.154" rank="family" taxon-doi="10.1601/tx.163">Methanocaldococcaceae</identifier>
        <authority>Whitman et al. 2002</authority>
        <status candidatus="false" conserved="false" current-name="Methanocaldococcaceae" current-name-doi="10.1601/nm.163" illegitimate="false" is-current="true" rejected="false" revived="false" status-code="VP" />
      </name-status-group>
    </nomenclature>
  </child>
  <child doi="10.1601/tx.34664" rank="family">
    <nomenclature xmlns="http://namesforlife.com/ns/common">
      <name-status-group>
        <identifier doi="10.1601/nm.34664" nomenclatural-type="10.1601/tx.34589" nomenclatural-type-exemplar="10.1601/ex.34590" rank="family" taxon-doi="10.1601/tx.34664">Incertae sedis 508</identifier>
        <authority>Rissanen et al. 2018</authority>
        <status candidatus="false" conserved="false" current-name="Incertae sedis 508" current-name-doi="10.1601/nm.34664" illegitimate="true" is-current="true" rejected="false" revived="false" status-code="NVP" />
      </name-status-group>
    </nomenclature>
  </child>
  <exemplars xmlns="http://namesforlife.com/ns/exemplar" />
  <bibliography xmlns="http://namesforlife.com/ns/reference">
    <reference id="rid.7839">
      <citation citation-type="book">
        <authors>
          <person-name>
            <surname>Whitman</surname>
            <given-names>W.B.</given-names>
          </person-name>
          <person-name>
            <surname>Boone</surname>
            <given-names>D.R.</given-names>
          </person-name>
          <person-name>
            <surname>Koga</surname>
            <given-names>Y.</given-names>
          </person-name>
        </authors>
        <editors>
          <person-name>
            <surname>Garrity</surname>
            <given-names>G.M.</given-names>
          </person-name>
          <person-name>
            <surname>Boone</surname>
            <given-names>D.R.</given-names>
          </person-name>
          <person-name>
            <surname>Castenholz</surname>
            <given-names>R.W.</given-names>
          </person-name>
        </editors>
        <article-title>Family II. Methanocaldococcaceae fam. nov.</article-title>
        <year>2001</year>
        <volume>1</volume>
        <edition>2</edition>
        <fpage>242</fpage>
        <lpage>243</lpage>
        <source id="529">Bergey's Manual of Systematic Bacteriology</source>
        <publisher-name>Springer</publisher-name>
        <publisher-loc>New York</publisher-loc>
      </citation>
    </reference>
    <reference id="rid.3531">
      <citation citation-type="journal">
        <authors>
          <person-name>
            <surname>Balch</surname>
            <given-names>W.E.</given-names>
          </person-name>
          <person-name>
            <surname>Fox</surname>
            <given-names>G.E.</given-names>
          </person-name>
          <person-name>
            <surname>Magrum</surname>
            <given-names>L.J.</given-names>
          </person-name>
          <person-name>
            <surname>Woese</surname>
            <given-names>C.R.</given-names>
          </person-name>
          <person-name>
            <surname>Wolfe</surname>
            <given-names>R.S.</given-names>
          </person-name>
        </authors>
        <article-title>Methanogens: reevaluation of a unique biological group.</article-title>
        <year>1979</year>
        <volume>43</volume>
        <issue>2</issue>
        <fpage>260</fpage>
        <lpage>296</lpage>
        <source id="402">Microbiological Reviews</source>
        <abbrev>Microbiol Rev</abbrev>
        <issn>0146-0749</issn>
        <pub-id pub-id-type="pmid">390357</pub-id>
      </citation>
    </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.20389">
      <citation citation-type="journal">
        <authors>
          <person-name>
            <surname>Rissanen</surname>
            <given-names>A.J.</given-names>
          </person-name>
          <person-name>
            <surname>Saarenheimo</surname>
            <given-names>J.</given-names>
          </person-name>
          <person-name>
            <surname>Tiirola</surname>
            <given-names>M.</given-names>
          </person-name>
          <person-name>
            <surname>Peura</surname>
            <given-names>S.</given-names>
          </person-name>
          <person-name>
            <surname>Aalto</surname>
            <given-names>S.L.</given-names>
          </person-name>
          <person-name>
            <surname>Karvinen</surname>
            <given-names>A.</given-names>
          </person-name>
          <person-name>
            <surname>Nykänen</surname>
            <given-names>H.</given-names>
          </person-name>
        </authors>
        <article-title>Gammaproteobacterial methanotrophs dominate methanotrophy in aerobic and anaerobic layers of boreal lake waters.</article-title>
        <year>2018</year>
        <volume>81</volume>
        <fpage>257</fpage>
        <lpage>276</lpage>
        <source id="1467">Aquatic Microbial Ecology</source>
        <abbrev>Aquat Microb Ecol</abbrev>
        <issn>0948-3055</issn>
        <essn>1616-1564</essn>
        <pub-id pub-id-type="doi">10.3354/ame01874</pub-id>
      </citation>
    </reference>
  </bibliography>
  <annotation xmlns="http://namesforlife.com/ns/common">
    <snapshot date="2024-04-22" date-formatted="April 22, 2024" time="14:02:37" time-formatted="14:02 PM" />
    <modified curator="Charles Parker" date="2019-11-08" date-formatted="November 8, 2019" time="14:16:26" time-formatted="14:16 PM" />
    <created curator="Charles Parker" date="2015-12-08" date-formatted="December 8, 2015" time="17:17:41" time-formatted="17:17 PM" />
  </annotation>
</taxon>
