Methylocystis parvus (ex Wittenbury et al. 1970) Bowman et al. 1993 emend. Hördt et al. 2020 Methylocystis parvus (ex Wittenbury et al. 1970) Bowman et al. 1993 emend. Hördt et al. 2020 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Alphaproteobacteria Garrity et al. 2006 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Methylocystaceae Bowman 2006 emend. Hördt et al. 2020 Methylocystis (ex Whittenbury et al. 1970) Bowman et al. 1993 emend. Belova et al. 2013 Methylocystis parvus (ex Wittenbury et al. 1970) Bowman et al. 1993 emend. Hördt et al. 2020 Methylocystis (ex Whittenbury et al. 1970) Bowman et al. 1993 emend. Belova et al. 2013 Methylocystis hirsuta Lindner et al. 2007 Methylocystis sp. None 2015 Methylocystis echinoides (ex Gal'chenko et al. 1977) Bowman et al. 1993 Methylocystis rosea Wartiainen et al. 2006 Methylocystis bryophila Belova et al. 2013 Methylocystis heyeri Dedysh et al. 2007 Methylocystis silviterrae Tikhonova et al. 2021 Methylocystis parvus (ex Wittenbury et al. 1970) Bowman et al. 1993 emend. Hördt et al. 2020 Bowman J.P. Sly L.I. Nichols P.D. Hayward A.C. Revised taxonomy of the methanotrophs: Description of Methylobacter gen.nov., emendation of Methylococcus, validation of Methylosinus and Methylocystis species, and a proposal that the family Methylococcaceae includes only the Group I Methanotrophs. 1993 43 4 735 753 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-43-4-735 Tsuji K. Tsien H.C. Hanson R.S. DePalma S.R. Scholtz R. LaRoche S. 16s ribosomal RNA sequence analysis for determination of phylogenetic relationship among methylotrophs 1990 136 1 1 10 Journal of General Microbiology J Gen Microbiol 0022-1287 10.1099/00221287-136-1-1 1693657 Dedysh S.N. Liesack W. Khmelenina V.N. Suzina N.E. Trotsenko Y.A. Semrau J.D. Bares A.M. Panikov N.S. Tiedje J.M. Methylocella palustris gen. nov., sp. nov., a new methane-oxidizing acidophilic bacterium from peat bogs, representing a novel subtype of serine-pathway methanotrophs. 2000 50 3 955 969 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-50-3-955 10843033 Bowman J.P. Sly L.I. Nichols P.D. Hayward A.C. Revised taxonomy of the methanotrophs: Description of Methylobacter gen.nov., emendation of Methylococcus, validation of Methylosinus and Methylocystis species, and a proposal that the family Methylococcaceae includes only the Group I Methanotrophs. 1993 43 4 735 753 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-43-4-735 Bowman J.P. Sly L.I. Nichols P.D. Hayward A.C. Revised taxonomy of the methanotrophs: Description of Methylobacter gen.nov., emendation of Methylococcus, validation of Methylosinus and Methylocystis species, and a proposal that the family Methylococcaceae includes only the Group I Methanotrophs. 1993 43 4 735 753 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-43-4-735 Wittenbury R. Davies S.L. Davey J.F. Exospores and cysts formed by methane-utilizing bacteria 1970 61 219 226 Journal of General Microbiology J Gen Microbiol 0022-1287 Hördt A. García-López M. Meier-Kolthoff J.P. Tindall B.J. Weinhold L.-M. Gronow S. Kyrpides N. Woyke T. Schleuning M. Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria 2020 11 468 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2020.00468 32373076