methanocella methanocella in the taxonomy of microorganisms, the methanocella are a genus of the euryarchaeota. methanocella scientific classification domain: archaea kingdom: euryarchaeota phylum: euryarchaeota class: methanomicrobia order: methanocellalessakai et al. 2008 family: methanocellaceaesakai et al. 2008 genus: methanocellasakai et al. 2008 type species methanocella paludicolasakai et al. 2008 species m. arvoryzae sakai et al. 2010 m. conradii lu and lu 2012 m. paludicola sakai et al. 2008 phylogeny 16s rrna-based ltp_01_2022 53 marker proteins based gtdb 07-rs207 m. arvoryzae sakai et al. 2010 m. conradii lu and lu 2012 m. paludicola sakai et al. 2008 m. arvoryzae m. conradii m. paludicola