Eukaryotes (190)

 Prokaryotes (2471)

   Bacteria (2318)

   Archaea (153)

     Euryarchaeota (98)

     Crenarchaeota (47)

       Aeropyrum (1)

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       Sulfolobus (16)

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       Pyrobaculum (6)

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       Thermofilum (1)

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       Fervidicoccus (1)

     Thaumarchaeota (5)

     Nanoarchaeota (1)

     Korarchaeota (1)

     Unclassified (1)