Methanopyrales
In taxonomy, the Methanopyrales are an order of microbes within the class methanopyri.
It contains only one family, Methanopyraceae, one genus, Methanopyrus, and one species, Methanopyrus kandleri. This species is chemolithoautotrophic and its cells are bacillus in form. It grows comfortably at temperatures of 98 °C and can survive at temperatures as high as 110 °C, making it the most thermophilic known methanogen. They live in hydrothermal vents. They are similar to Methanobacteriales, but unlike other methanogenic archaea, their cell walls contain pseudomurein.
