3. The Earth Is Old! Radiometric dating of rocks (amîtsoq gneisses) from Western Greenland Similar results from Australia, Wisconsin, Africa and Russia

8. -Woese, Micro. Rev., 1987

10. Archaea 0.10 Proteobacteria Fusobacteria OP11 TM7 W88 TM6 Spirochetes Thermus/Deinococcus Cytophagales Green sulfur Marine group A Fibrobacter Low G+C gram positive Cyanobacteria Flexistipes Synergistes OP8 Termite group I Acidobacterium Nitrospira OS-K Verrucomicrobia Chlamydia OP3 Planctomycetes OP10 WS1 Actinobacteria Green non-sulfur OP5 OP9 Dictyoglomus Thermotogales Thermodesulfobacterium Aquificales Coprothermobacter J. Bacteriol. 1998; 180:4765-4774

11. Diplococci Neisseria gonorrhoeae

12. Streptococci Streptococcus pyogenes

13. Staphylococci Staphylococcus aureus

14. Gram + and Gram - cocci

15. Bacilli Escherichia coli

16. Spirals spirochetes & spirillum

17. Filament

18. Filaments

20. Vibrio Vibrio cholerae

21. Epulopiscium fishelsoni

22. Thiomargarita namibiensis