Fervidicoccus Perevalova et al. 2010 Fervidicoccus Perevalova et al. 2010 Fervidicoccus fontis Perevalova et al. 2010 Universal Root Woese et al. 1990 Archaea Woese et al. 1990 Crenarchaeota (sic) Garrity and Holt 2021 Thermoproteota corrig. Garrity and Holt 2021 Thermoprotei Reysenbach 2002 Fervidicoccales Perevalova et al. 2010 Fervidicoccaceae Perevalova et al. 2010 Fervidicoccus Perevalova et al. 2010 Fervidicoccaceae Perevalova et al. 2010 Fervidicoccus fontis Perevalova et al. 2010 Perevalova A.A. Bidzhieva S.K. Kublanov I.V. Hinrichs K.-U. Liu X.L. Mardanov A.V. Lebednisky A.V. Bonch-Osmolovskaya E.A. Fervidicoccus fontis gen. nov., sp. nov., an anaerobic, thermophilic crenarchaeote from terrestrial hot springs, and proposal of Fervidicoccaceae fam. nov. and Fervidicoccales ord. nov. 2010 60 9 2082 2088 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.019042-0 19837732 Perevalova A.A. Bidzhieva S.K. Kublanov I.V. Hinrichs K.-U. Liu X.L. Mardanov A.V. Lebednisky A.V. Bonch-Osmolovskaya E.A. Fervidicoccus fontis gen. nov., sp. nov., an anaerobic, thermophilic crenarchaeote from terrestrial hot springs, and proposal of Fervidicoccaceae fam. nov. and Fervidicoccales ord. nov. 2010 60 9 2082 2088 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.019042-0 19837732