Palaeococcus pacificus Zeng et al. 2013 Palaeococcus pacificus Zeng et al. 2013 Universal Root Woese et al. 1990 Archaea Woese et al. 1990 Euryarchaeota (sic) Garrity and Holt 2001 Methanobacteriota corrig. Garrity and Holt 2001 Thermococci Zillig and Reysenbach 2002 Thermococcales Zillig et al. 1988 Thermococcaceae Zillig et al. 1988 Palaeococcus Takai et al. 2000 Palaeococcus pacificus Zeng et al. 2013 Palaeococcus Takai et al. 2000 Palaeococcus ferrophilus Takai et al. 2000 Palaeococcus helgesonii Amend et al. 2006 Palaeococcus pacificus Zeng et al. 2013 Zeng X. Zhang X. Jiang L. Alain K. Jebbar M. Shao Z. Palaeococcus pacificus sp. nov., an archaeon from deep-sea hydrothermal sediment 2013 63 6 2155 2159 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.044487-0 23104364 Zeng X. Zhang X. Jiang L. Alain K. Jebbar M. Shao Z. Palaeococcus pacificus sp. nov., an archaeon from deep-sea hydrothermal sediment 2013 63 6 2155 2159 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.044487-0 23104364 Zeng X. Zhang X. Jiang L. Alain K. Jebbar M. Shao Z. Palaeococcus pacificus sp. nov., an archaeon from deep-sea hydrothermal sediment 2013 63 6 2155 2159 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.044487-0 23104364