Phylogenic Tree Archaea and Bacteria

Universal Ancestor

Bacteria

Gram-positive bacteria

Staphylococcus aureus

Cyanobacteria

Anabaena variabilis

Microcystis aeruginosa

Spirochetes

Treponema denticola

Treponema pallidum

Chlamydias

Chlamydia suis

Chlamydia muridarum

Proteobacteria

Salmonella enterica

Shigella boydii

Archaea

Nanoarchaeotes

Nanoarchaeum equitans

Crenarchaeotes

Aeropyrum pernix

Sulfolobus acidocaldarius

Euryarchaeotes

Methanocaldococcus jannaschii

Halobacterium salinarum

Korarcheotes

Korarchaeum cryptofilum