8.15: Euryarchaeota Last updated Jan 3, 2021 Save as PDF 8.14E: Psychrophilic Crenarchaeota 8.15A: Diverse Cell Forms of Methanogens Page ID9817 BoundlessBoundless ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy8.15A: Diverse Cell Forms of Methanogens8.15B: Extremely Halophilic Archaea8.15C: Methane-Producing Archaea - Methanogens8.15D: Thermoplasmatales, Thermocaccales, and Methanopyrus8.15E: Archaeoglobus8.15F: Nanoarchaeum and AciduliprofundumNanoarchaeum equitans is a species of marine Archaea discovered in a hydrothermal vent off the coast of Iceland.8.15G: Hyperthermophilic Archaea, H₂, and Microbial EvolutionA hyperthermophile is an organism that thrives in extremely hot environments, from 60 degrees C (140 degrees F) and up.