This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.
For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.close box
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Benachenhou, L. N., P. Forterre and B. Labedan. 1993. Evolution of glutamate dehydrogenase genes: Evidence for two paralogous protein families and unusual branching patterns of the archaebacteria in the universal tree of life. Journal Of Molecular Evolution 36(4): 335-346.
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Delong, E. F. 1992. Archaea in coastal marine environments. Proceedings of The National Academy of Sciences (U.S.A.), 89(12): 5685-5689.
Kjems, J., N. Larsen, J. Z. Dalgaard, R. A. Garrett and K. O. Stetter. 1992. Phylogenetic relationships amongst the hyperthermophilic Archaea determined from partial 23S rRNA gene sequences. Systematic and Applied Microbiology 15(2): 203-208.
Klenk, H. P., C. Schleper, V. Schwass and R. Brudler. 1993. Nucleotide sequence, transcription and phylogeny of the gene encoding the superoxide dismutase of Sulfolobus acidocaldarius. Biochimica Et Biophysica Acta 1174(1): 95-98.
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Citing this page:
Tree of Life Web Project. 1995. Euryarchaeota. Version 01 January 1995 (temporary). http://tolweb.org/Euryarchaeota/10/1995.01.01 in The Tree of Life Web Project, http://tolweb.org/