Editing Domain (biology) (section)

==Alternative classifications==
{{Biological classification with acellular}}
Alternative classifications of life include:
* The [[two-empire system]] or '''superdomain system''', proposed by [[Ernst Mayr|Mayr]] (1998), with top-level groupings of Prokaryota (or [[Monera]]) and Eukaryota.<ref name=Mayr1998>{{cite journal |author=Mayr, E. |author-link=Ernst Mayr |year=1998 |title=Two empires or three? |journal=PNAS |volume=95 |issue=17 |pages=9720–9723 |pmid=9707542 |doi=10.1073/pnas.95.17.9720 |doi-access=free |pmc=33883 |bibcode=1998PNAS...95.9720M }}</ref><ref name="CavalierSmith2004">{{cite journal |last=Cavalier-Smith |first=T. |author-link=Thomas Cavalier-Smith |year=2004 |title=Only six kingdoms of life |journal=Proc. R. Soc. Lond. B |volume=271 |issue=1545 |pages=1251–1262 |doi=10.1098/rspb.2004.2705 |pmid=15306349 |pmc=1691724 |url=http://www.cladocera.de/protozoa/cavalier-smith_2004_prs.pdf |access-date=2010-04-29}}</ref>
* The [[eocyte hypothesis]], proposed by [[James A. Lake|Lake]] ''et al''. (1984),<ref name=Lake/> which posits two domains, Bacteria and Archaea, with Eukaryota included as a subordinate clade branching from Archaea.<ref name=Archibald>{{cite journal |first1=John M. |last1=Archibald |date=23 December 2008 |title=The eocyte hypothesis and the origin of eukaryotic cells |journal=PNAS |volume=105 |issue=51 |pages=20049–20050 |doi=10.1073/pnas.0811118106 |doi-access=free |pmid=19091952 |pmc=2629348 |bibcode=2008PNAS..10520049A}}</ref><ref name=Lake>{{cite journal |first1=J.A. |last1=Lake |author1-link=James A. Lake |first2=Eric |last2=Henderson |first3=Melanie |last3=Oakes |first4=Michael W. |last4=Clark |date=June 1984 |title=Eocytes: A new ribosome structure indicates a kingdom with a close relationship to eukaryotes |journal=PNAS |volume=81 |issue=12 |pages=3786–3790 |doi=10.1073/pnas.81.12.3786 |doi-access=free |pmid=6587394 |pmc=345305|bibcode=1984PNAS...81.3786L}}</ref><ref name=2domains>{{cite journal |first1=Tom A. |last1= Williams |first2=Peter G. |last2=Foster |first3=Cymon J. |last3=Cox |first4=T. Martin |last4=Embley |author4-link=Martin Embley |date=December 2013 |title=An archaeal origin of eukaryotes supports only two primary domains of life |journal=Nature |volume=504 |issue=7479 |pages=231–236 |doi=10.1038/nature12779 |pmid=24336283|bibcode=2013Natur.504..231W |s2cid= 4461775 |url=https://eprint.ncl.ac.uk/fulltext.aspx?url=199146/704E71B4-8D68-4F3C-93BA-E73C50449593.pdf&pub_id=199146 }}</ref>