| antarctica | | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| australia | | methanomicrobiales archaeon methan_05 | species | 387 | 0 |
| australia | | methanomicrobiales archaeon methan_06 | species | 428 | 0 |
| australia | | methanomicrobiales archaeon methan_07 | species | 415 | 0 |
| australia | | uncultured methanoculleus sp. | species | 2 | 0 |
| australia | queensland | methanocorpusculaceae archaeon phil4 | species | 103 | 0 |
| brazil | | uncultured methanocalculus sp. | species | 3 | 0 |
| brazil | | uncultured methanocorpusculum sp. | species | 2 | 0 |
| brazil | | uncultured methanofollis sp. | species | 1 | 0 |
| brazil | | uncultured methanogenium sp. | species | 4 | 0 |
| brazil | | uncultured methanomicrobiaceae archaeon | species | 1 | 0 |
| brazil | | uncultured methanomicrobiales archaeon | species | 44 | 0 |
| brazil | | uncultured methanoplanus sp. | species | 3 | 0 |
| brazil | | uncultured methanospirillum sp. | species | 3 | 0 |
| brazil | rio de janeiro | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| cameroon | | uncultured methanomicrobiales archaeon | species | 5 | 0 |
| canada | | methanospirillum hungatei | species | 2 | 0 |
| canada | alberta | methanoculleus marisnigri | species | 1 | 0 |
| canada | alberta | methanolinea sp. uba245 | species | 1 | 0 |
| canada | alberta | methanolinea sp. uba437 | species | 1 | 0 |
| canada | alberta | methanolinea sp. uba451 | species | 1 | 0 |
| canada | alberta | methanolinea sp. uba473 | species | 1 | 0 |
| canada | alberta | methanomicrobiaceae archaeon uba436 | species | 1 | 0 |
| canada | alberta | methanoregula sp. | species | 5 | 0 |
| canada | alberta | methanoregula sp. uba244 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba247 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba434 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba450 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba452 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba469 | species | 1 | 0 |
| canada | alberta | methanoregula sp. uba471 | species | 1 | 0 |
| canada | alberta | methanoregulaceae archaeon uba467 | species | 1 | 0 |
| canada | british columbia | methanoculleus sp. | species | 4 | 0 |
| canada | british columbia | methanoregula sp. | species | 3 | 0 |
| chile | | uncultured methanomicrobiales archaeon | species | 42 | 0 |
| china | | methanobacterium sp. enrichment culture | species | 2 | 0 |
| china | | methanocalculus sp. enrichment culture clone a2-23 | species | 1 | 0 |
| china | | methanocalculus sp. enrichment culture clone a3-40 | species | 1 | 0 |
| china | | methanocalculus sp. enrichment culture clone a3-53 | species | 1 | 0 |
| china | | methanocalculus sp. enrichment culture clone a4-3 | species | 1 | 0 |
| china | | methanocalculus sp. enrichment culture clone sa2-91 | species | 1 | 0 |
| china | | methanoculleus bourgensis | species | 1 | 0 |
| china | | methanoculleus receptaculi | species | 2 | 0 |
| china | | methanoculleus sp. enrichment culture | species | 5 | 0 |
| china | | methanoculleus sp. enrichment culture clone ad_mcra_17 | species | 1 | 0 |
| china | | methanoculleus sp. enrichment culture clone ad_mcra_24 | species | 1 | 0 |
| china | | methanoculleus sp. enrichment culture clone ad_mcra_44 | species | 1 | 0 |
| china | | methanofollis sp. enrichment culture | species | 8 | 0 |
| china | | methanogenic archaeon a1-lgm-za1 | species | 1 | 0 |
| china | | methanogenic archaeon lgm -za2 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb1 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb28 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb3 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb31 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb4 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb5 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-mb8 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-sl1 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-sl2 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-sl3 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-sl4 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-y4 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-y9 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za10 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za11 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za12 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za13 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za14 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za15 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za16 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za18 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za3 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za4 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za5 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za6 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za7 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za8 | species | 1 | 0 |
| china | | methanogenic archaeon lgm-za9 | species | 1 | 0 |
| china | | methanolinea sp. enrichment culture clone b1-a-23 | species | 1 | 0 |
| china | | methanolinea sp. enrichment culture clone sa2-93 | species | 1 | 0 |
| china | | methanolinea tarda | species | 4 | 0 |
| china | | methanomicrobiaceae archaeon enrichment culture clone b13-a-114 | species | 1 | 0 |
| china | | methanomicrobiales archaeon enrichment culture clone a1-22 | species | 1 | 0 |
| china | | methanomicrobiales archaeon enrichment culture clone b1-a-77 | species | 1 | 0 |
| china | | methanomicrobiales archaeon enrichment culture clone sa3-48 | species | 1 | 0 |
| china | | methanomicrobiales archaeon enrichment culture clone sa3-82 | species | 1 | 0 |
| china | | methanomicrobium sp. ts-2 | species | 1 | 0 |
| china | | methanoregula boonei | species | 2 | 0 |
| china | | methanoregula formicica | species | 1 | 0 |
| china | | methanosphaerula palustris | species | 1 | 0 |
| china | | methanospirillum hungatei | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_16 | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_19 | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_25 | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_43 | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_5 | species | 1 | 0 |
| china | | methanospirillum sp. enrichment culture clone ad_archaea_6 | species | 1 | 0 |
| china | | uncultured methanocalculus sp. | species | 190 | 0 |
| china | | uncultured methanocorpusculum sp. | species | 81 | 0 |
| china | | uncultured methanoculleus sp. | species | 95 | 0 |
| china | | uncultured methanofollis sp. | species | 20 | 0 |
| china | | uncultured methanogenium sp. | species | 53 | 0 |
| china | | uncultured methanolinea sp. | species | 23 | 0 |
| china | | uncultured methanomicrobiaceae archaeon | species | 26 | 0 |
| china | | uncultured methanomicrobiales archaeon | species | 44 | 0 |
| china | | uncultured methanoplanus sp. | species | 5 | 0 |
| china | | uncultured methanoregula sp. | species | 3 | 0 |
| china | | uncultured methanosphaerula sp. | species | 1 | 0 |
| china | | uncultured methanospirillaceae archaeon | species | 4 | 0 |
| china | | uncultured methanospirillum sp. | species | 41 | 0 |
| china | guangdong | uncultured methanomicrobiaceae archaeon | species | 2 | 0 |
| china | guangdong | uncultured methanomicrobiales archaeon | species | 2 | 0 |
| china | guangdong | uncultured methanospirillum sp. | species | 1 | 0 |
| china | henan | uncultured methanoculleus sp. | species | 1 | 0 |
| china | henan | uncultured methanofollis sp. | species | 1 | 0 |
| china | henan | uncultured methanolinea sp. | species | 1 | 0 |
| china | hubei | methanospirillum psychrodurum | species | 3 | 0 |
| china | hunan | methanoculleus sp. uba389 | species | 1 | 0 |
| china | hunan | methanoculleus sp. uba406 | species | 1 | 0 |
| china | hunan | uncultured methanogenium sp. | species | 2 | 0 |
| china | hunan | uncultured methanolinea sp. | species | 2 | 0 |
| china | hunan | uncultured methanoregula sp. | species | 3 | 0 |
| china | hunan | uncultured methanospirillum sp. | species | 1 | 0 |
| china | jiangsu | methanoculleus sp. rps4 | species | 1 | 0 |
| china | jiangsu | methanogenic archaeon lgm-afm01 | species | 1 | 0 |
| china | jiangsu | methanogenic archaeon lgm-afm02 | species | 1 | 0 |
| china | shandong | methanocalculus sp. enrichment culture clone l35a_25 | species | 1 | 0 |
| china | shandong | methanocalculus sp. enrichment culture clone l35a_27 | species | 1 | 0 |
| china | shandong | methanocalculus sp. enrichment culture clone l35a_3 | species | 1 | 0 |
| china | shandong | methanocalculus sp. enrichment culture clone l35a_9 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_11 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_16 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_19 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_2 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_21 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_26 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_30 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_32 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_37 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_5 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone ha1_8 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l35a_10 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l35a_2 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l35a_26 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l35a_8 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_11 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_14 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_15 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_28 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_36 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_5 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone l55a_9 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone la_11 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone la_14 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone la_16 | species | 1 | 0 |
| china | shandong | methanoculleus sp. enrichment culture clone la_2 | species | 1 | 0 |
| china | shandong | methanolinea sp. enrichment culture clone l55a_18 | species | 1 | 0 |
| china | shandong | methanolinea sp. enrichment culture clone l55a_3 | species | 1 | 0 |
| china | shandong | methanolinea sp. enrichment culture clone l55a_7 | species | 1 | 0 |
| china | shandong | uncultured methanoculleus sp. | species | 34 | 0 |
| china | shanghai shi | methanomicrobiaceae archaeon enrichment culture | species | 2 | 0 |
| china | shanghai shi | methanomicrobiales archaeon enrichment culture | species | 3 | 0 |
| china | shanxi | methanomicrobium | genus | 0 | 1 |
| china | sichuan | methanocorpusculaceae archaeon uba425 | species | 1 | 0 |
| china | sichuan | methanocorpusculum sp. uba424 | species | 1 | 0 |
| china | sichuan | methanoculleus sp. rps4 | species | 1 | 0 |
| china | sichuan | methanoculleus sp. uba413 | species | 1 | 0 |
| china | sichuan | methanoculleus sp. uba416 | species | 1 | 0 |
| china | sichuan | methanoculleus sp. uba430 | species | 1 | 0 |
| china | sichuan | methanofollis sp. uba420 | species | 1 | 0 |
| china | sichuan | uncultured methanoculleus sp. | species | 8 | 0 |
| china | sichuan | uncultured methanomicrobiales archaeon | species | 3 | 0 |
| china | xinjiang | methanocorpusculum | genus | 0 | 1 |
| china | yunnan | methanocorpusculum sp. uba362 | species | 1 | 0 |
| china | yunnan | methanocorpusculum sp. uba592 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba291 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba300 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba303 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba307 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba312 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba320 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba326 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba331 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba334 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba340 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba374 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba377 | species | 1 | 0 |
| china | yunnan | methanoculleus sp. uba45 | species | 1 | 0 |
| colombia | | uncultured methanolinea sp. | species | 1 | 0 |
| costa rica | | methanospirillum hungatei | species | 1 | 0 |
| costa rica | | methanospirillum sp. | species | 1 | 0 |
| costa rica | | uncultured methanocorpusculum sp. | species | 2 | 0 |
| costa rica | | uncultured methanoculleus sp. | species | 3 | 0 |
| czech republic | | uncultured methanoculleus sp. | species | 7 | 0 |
| czech republic | | uncultured methanolinea sp. | species | 1 | 0 |
| czech republic | | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| czech republic | | uncultured methanospirillum sp. | species | 2 | 0 |
| denmark | | methanoculleus sp. enrichment culture clone gang 12 | species | 1 | 0 |
| denmark | | methanoculleus sp. enrichment culture clone gang 13 | species | 1 | 0 |
| denmark | | uncultured methanolinea sp. | species | 2 | 0 |
| egypt | | uncultured methanofollis sp. | species | 1 | 0 |
| egypt | | uncultured methanoplanus sp. | species | 1 | 0 |
| france | | methanosphaerula sp. enrichment culture clone mghr | species | 1 | 0 |
| france | | uncultured methanogenium sp. | species | 1 | 0 |
| france | aquitaine region | uncultured methanomicrobiales archaeon | species | 2 | 0 |
| france | languedoc-roussillon region | uncultured methanomicrobiales archaeon | species | 2 | 0 |
| germany | | methanocorpusculum bavaricum dsm 4179 | no rank | 27 | 0 |
| germany | | methanocorpusculum parvum | species | 96 | 0 |
| germany | | methanoculleus bourgensis | species | 13 | 0 |
| germany | | methanoculleus chikugoensis | species | 1 | 0 |
| germany | | methanoculleus thermophilus | species | 2 | 0 |
| germany | | methanofollis liminatans dsm 4140 | no rank | 2 | 0 |
| germany | | uncultured methanoculleus sp. | species | 3 | 0 |
| germany | | uncultured methanomicrobiaceae archaeon | species | 78 | 0 |
| germany | | uncultured methanospirillaceae archaeon | species | 2 | 0 |
| germany | bavaria | uncultured methanomicrobiales archaeon | species | 4 | 0 |
| germany | bremen | methanoculleus sp. | species | 1 | 0 |
| germany | bremen | methanospirillum sp. | species | 1 | 0 |
| germany | bremen | uncultured methanomicrobiales archaeon | species | 13 | 0 |
| germany | hesse | uncultured methanoculleus sp. | species | 2 | 0 |
| germany | lower saxony | methanoculleus sp. | species | 4 | 0 |
| germany | lower saxony | methanospirillum sp. | species | 2 | 0 |
| germany | mecklenburg-vorpommern | uncultured methanomicrobiales archaeon | species | 9 | 0 |
| germany | rhineland-palatinate | methanoculleus bourgensis | species | 0 | 1 |
| germany | saarland | methanoculleus bourgensis | species | 0 | 1 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-16 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-17 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-18 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-19 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-20 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-mbt3 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-mbt7 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-mbt8 | species | 1 | 0 |
| india | | methanobacterium sp. enrichment culture clone cibanicra-mbt9 | species | 1 | 0 |
| india | | methanocorpusculum aggregans | species | 2 | 0 |
| india | | methanocorpusculum bavaricum | species | 12 | 0 |
| india | | methanocorpusculum labreanum | species | 13 | 0 |
| india | | methanoculleus bourgensis | species | 1 | 0 |
| india | | methanoculleus hydrogenitrophicus | species | 2 | 0 |
| india | | methanoculleus marisnigri | species | 1 | 0 |
| india | | methanoculleus marisnigri jr1 | no rank | 2 | 0 |
| india | | methanoculleus sp. | species | 6 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-39 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-40 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-41 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-42 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-43 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-44 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-45 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-46 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-47 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-48 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-49 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-50 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-51 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-52 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-mbt11 | species | 1 | 0 |
| india | | methanoculleus sp. enrichment culture clone cibanicra-mbt12 | species | 1 | 0 |
| india | | methanoculleus submarinus | species | 1 | 0 |
| india | | methanoculleus thermophilus | species | 2 | 0 |
| india | | methanofollis liminatans | species | 1 | 0 |
| india | | methanogenic archaeon | species | 4 | 0 |
| india | | methanogenic archaeon cirg-gm02 | species | 1 | 0 |
| india | | methanolinea tarda | species | 1 | 0 |
| india | | methanomicrobiales archaeon grau-4 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-53 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-54 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-55 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-56 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-57 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-58 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-59 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-60 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-61 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-62 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-63 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-64 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-65 | species | 1 | 0 |
| india | | methanoplanus sp. enrichment culture clone cibanicra-66 | species | 1 | 0 |
| india | | methanoregula boonei | species | 1 | 0 |
| india | | methanoregula formicica | species | 1 | 0 |
| india | | methanosphaerula palustris e1-9c | no rank | 1 | 0 |
| india | | methanospirillum hungatei | species | 3 | 0 |
| india | | methanospirillum hungatei jf-1 | no rank | 1 | 0 |
| india | | methanospirillum sp. | species | 1 | 0 |
| india | | uncultured methanocalculus sp. | species | 10 | 0 |
| india | | uncultured methanocorpusculum sp. | species | 57 | 0 |
| india | | uncultured methanoculleus sp. | species | 61 | 0 |
| india | | uncultured methanofollis sp. | species | 45 | 0 |
| india | | uncultured methanogenium sp. | species | 1 | 0 |
| india | | uncultured methanolacinia sp. | species | 6 | 0 |
| india | | uncultured methanolinea sp. | species | 15 | 0 |
| india | | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| india | | uncultured methanomicrobium sp. | species | 2 | 0 |
| india | | uncultured methanoplanus sp. | species | 20 | 0 |
| india | | uncultured methanoregula sp. | species | 123 | 0 |
| india | | uncultured methanosphaerula sp. | species | 3 | 0 |
| india | | uncultured methanospirillum sp. | species | 31 | 0 |
| india | himachal pradesh | methanospirillum hungatei | species | 1 | 0 |
| india | maharashtra | methanocalculus sp. ca100 | species | 1 | 0 |
| india | maharashtra | methanocalculus sp. la2 | species | 1 | 0 |
| india | maharashtra | methanoculleus sp. lh2 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ca107 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ca41 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ca52 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch13 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch2 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch42 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch50 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch71 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch84 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch9 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ch95 | species | 1 | 0 |
| india | maharashtra | methanogenic archaeon ct3 | species | 1 | 0 |
| india | maharashtra | methanogenium | genus | 0 | 1 |
| india | uttar pradesh | methanogenic archaeon 'cirg gm 01' | species | 1 | 0 |
| india | uttar pradesh | methanogenic archaeon 'cirg gm 02' | species | 1 | 0 |
| indonesia | north sumatra province | methanoculleus | genus | 0 | 1 |
| ireland | | uncultured methanospirillum sp. | species | 1 | 0 |
| ireland | connaught province | uncultured methanospirillum sp. | species | 1 | 0 |
| italy | | methanoplanus limicola dsm 2279 | no rank | 9 | 0 |
| japan | | methanoculleus chikugoensis | species | 1 | 0 |
| japan | | methanolinea tarda nobi-1 | no rank | 1 | 0 |
| japan | | methanoregula formicica | species | 2 | 0 |
| japan | | methanoregula formicica smsp | no rank | 1 | 0 |
| japan | | uncultured methanocorpusculum sp. | species | 1 | 0 |
| japan | | uncultured methanoculleus sp. | species | 1 | 0 |
| japan | | uncultured methanofollis sp. | species | 2 | 0 |
| japan | | uncultured methanolinea sp. | species | 1 | 0 |
| japan | | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| japan | | uncultured methanospirillum sp. | species | 2 | 0 |
| japan | aomori prefecture | uncultured methanomicrobiaceae archaeon | species | 9 | 0 |
| japan | chiba prefecture | methanomicrobium antiquum | species | 2 | 0 |
| japan | chiba prefecture | methanospirillum lacunae | species | 54 | 0 |
| japan | fukuoka prefecture | methanoculleus | genus | 0 | 1 |
| japan | fukuoka prefecture | methanoculleus bourgensis | species | 0 | 1 |
| japan | fukuoka prefecture | methanoculleus chikugoensis | species | 2 | 0 |
| japan | hokkaido prefecture | methanocorpusculum sp. t07 | species | 2 | 0 |
| japan | hokkaido prefecture | methanocorpusculum sp. t08 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. hc-1 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. m06 | species | 1 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. m07 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. m11 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. t02 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. t03 | species | 1 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. t05 | species | 2 | 0 |
| japan | hokkaido prefecture | methanoculleus sp. t14 | species | 2 | 0 |
| japan | hokkaido prefecture | uncultured methanocorpusculum sp. | species | 2 | 0 |
| japan | hokkaido prefecture | uncultured methanoculleus sp. | species | 39 | 0 |
| japan | hokkaido prefecture | uncultured methanofollis sp. | species | 2 | 0 |
| japan | hokkaido prefecture | uncultured methanomicrobiaceae archaeon | species | 6 | 0 |
| japan | iwate prefecture | uncultured methanospirillaceae archaeon | species | 1 | 0 |
| japan | niigata prefecture | methanofollis | genus | 0 | 1 |
| japan | niigata prefecture | methanofollis ethanolicus | species | 1 | 0 |
| japan | niigata prefecture | methanogenic endosymbiont of caenomorpha sp. | species | 1 | 0 |
| japan | niigata prefecture | methanogenic endosymbiont of metopus contortus | species | 1 | 0 |
| japan | niigata prefecture | methanolinea tarda nobi-1 | no rank | 63 | 0 |
| japan | shizuoka prefecture | uncultured methanocorpusculum sp. | species | 119 | 0 |
| japan | shizuoka prefecture | uncultured methanofollis sp. | species | 34 | 0 |
| japan | shizuoka prefecture | uncultured methanosphaerula sp. | species | 1 | 0 |
| kenya | rift valley province | uncultured methanocalculus sp. | species | 2 | 0 |
| kenya | rift valley province | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| kenya | rift valley province | uncultured methanospirillaceae archaeon | species | 1 | 0 |
| malaysia | | methanoculleus sp. uba77 | species | 1 | 0 |
| malaysia | | methanomicrobiales archaeon uba81 | species | 1 | 0 |
| netherlands | | methanospirillum stamsii | species | 1 | 0 |
| netherlands | gelderland province | methanoculleus marisnigri | species | 1 | 0 |
| netherlands | gelderland province | methanospirillum stamsii | species | 180 | 0 |
| netherlands | north holland province | uncultured methanomicrobiales archaeon | species | 117 | 0 |
| new zealand | | methanogenic archaeon mixed culture iso4-g1 | species | 1 | 0 |
| new zealand | | methanogenic archaeon mixed culture iso4-g11 | species | 1 | 0 |
| new zealand | manawatu-wanganui | methanogenic archaeon mixed culture iso4-g1 | species | 1 | 0 |
| nigeria | | uncultured methanocalculus sp. | species | 15 | 0 |
| nigeria | | uncultured methanoculleus sp. | species | 5 | 0 |
| nigeria | | uncultured methanofollis sp. | species | 8 | 0 |
| nigeria | | uncultured methanogenium sp. | species | 4 | 0 |
| nigeria | | uncultured methanolinea sp. | species | 3 | 0 |
| nigeria | | uncultured methanomicrobium sp. | species | 1 | 0 |
| nigeria | | uncultured methanoplanus sp. | species | 3 | 0 |
| nigeria | | uncultured methanoregula sp. | species | 5 | 0 |
| nigeria | | uncultured methanosphaerula sp. | species | 1 | 0 |
| nigeria | | uncultured methanospirillum sp. | species | 1 | 0 |
| pakistan | | methanoculleus marisnigri | species | 1 | 0 |
| pakistan | | uncultured methanoculleus sp. | species | 1 | 0 |
| russia | | methanoculleus sp. | species | 1 | 0 |
| russia | altai krai | methanocalculus natronophilus | species | 2 | 0 |
| russia | altai krai | methanocalculus sp. amf-a1 | species | 1 | 0 |
| russia | tomsk oblast | uncultured methanomicrobiaceae archaeon | species | 7 | 0 |
| south africa | | uncultured methanomicrobiales archaeon | species | 1 | 0 |
| south korea | | methanoculleus bourgensis | species | 1 | 0 |
| south korea | | uncultured archaeon 'soyang 1af-1100ar' | species | 9 | 0 |
| south korea | ulsan city | uncultured methanolinea sp. | species | 2 | 0 |
| south korea | ulsan city | uncultured methanomicrobiales archaeon | species | 34 | 0 |
| south korea | ulsan city | uncultured methanospirillum sp. | species | 1 | 0 |
| spain | catalonia | uncultured methanomicrobiales archaeon | species | 9 | 0 |
| spain | valencia | uncultured methanomicrobiales archaeon | species | 3 | 0 |
| sweden | ostergoetland | uncultured methanoculleus sp. | species | 13 | 0 |
| sweden | ostergoetland | uncultured methanospirillum sp. | species | 1 | 0 |
| sweden | uppsala | methanoculleus bourgensis | species | 1 | 0 |
| sweden | uppsala | methanoculleus sp. | species | 1 | 0 |
| taiwan | | methanocalculus | genus | 0 | 2 |
| taiwan | | methanocalculus chunghsingensis | species | 1 | 0 |
| taiwan | | methanocorpusculum parvum | species | 1 | 0 |
| taiwan | | methanoculleus sediminis | species | 2 | 0 |
| taiwan | | methanoculleus sp. | species | 1 | 0 |
| taiwan | | methanoculleus taiwanensis | species | 15 | 0 |
| taiwan | | methanofollis | genus | 0 | 1 |
| taiwan | | methanogenium sp. s4bf | species | 1 | 0 |
| taiwan | | methanolinea | genus | 0 | 1 |
| taiwan | | methanolinea mesophila | species | 1 | 0 |
| taiwan | | methanomicrobiaceae archaeon cyw5 | species | 1 | 0 |
| taiwan | | uncultured methanospirillum sp. | species | 2 | 0 |
| taiwan | taipei municipality | methanoculleus chikugoensis | species | 1 | 0 |
| taiwan | taiwan municipality | methanolinea mesophila | species | 1 | 0 |
| tanzania | | uncultured methanoculleus sp. | species | 3 | 0 |
| thailand | | uncultured methanomicrobiales archaeon | species | 10 | 0 |
| thailand | | uncultured methanospirillum sp. | species | 1 | 0 |
| thailand | chonburi province | uncultured methanoculleus sp. | species | 3 | 0 |
| thailand | khon kaen province | methanoculleus marisnigri | species | 1 | 0 |
| turkey | | uncultured methanoculleus sp. | species | 2 | 0 |
| turkey | | uncultured methanogenium sp. | species | 1 | 0 |
| turkey | | uncultured methanolinea sp. | species | 1 | 0 |
| turkey | | uncultured methanomicrobiaceae archaeon | species | 6 | 0 |
| turkey | | uncultured methanomicrobiales archaeon | species | 4 | 0 |
| turkey | | uncultured methanomicrobium sp. | species | 1 | 0 |
| turkey | | uncultured methanoplanus sp. | species | 2 | 0 |
| turkey | | uncultured methanospirillum sp. | species | 1 | 0 |
| united kingdom | | uncultured methanoculleus sp. | species | 1 | 0 |
| united kingdom | england | uncultured methanomicrobiales archaeon | species | 25 | 0 |
| united states | | methanoculleus sp. ebm-46 | species | 658 | 0 |
| united states | | methanolinea sp. jgi 0000059-i19 | species | 1 | 0 |
| united states | | methanomicrobium mobile bp | no rank | 26 | 0 |
| united states | | methanospirillum sp. jgi 0000059-j12 | species | 1 | 0 |
| united states | alaska | methanocalculus sp. 52_23 | species | 225 | 0 |
| united states | alaska | methanoculleus marisnigri | species | 648 | 0 |
| united states | alaska | methanogenium | genus | 0 | 2 |
| united states | alaska | methanomicrobiales archaeon 53_19 | species | 287 | 0 |
| united states | alaska | uncultured methanocalculus sp. | species | 20 | 0 |
| united states | alaska | uncultured methanoculleus sp. | species | 10 | 0 |
| united states | alaska | uncultured methanomicrobiales archaeon | species | 9 | 0 |
| united states | alaska | uncultured methanoplanus sp. | species | 10 | 0 |
| united states | california | enrichment culture e21a1 | species | 1 | 0 |
| united states | california | enrichment culture e21b2 | species | 1 | 0 |
| united states | california | enrichment culture e31b1 | species | 1 | 0 |
| united states | california | methanoculleus sp. | species | 11 | 0 |
| united states | california | methanofollis liminatans | species | 1 | 0 |
| united states | california | methanospirillum sp. | species | 2 | 0 |
| united states | california | uncultured archaeon o23c7 | species | 1 | 0 |
| united states | california | uncultured archaeon o23d1 | species | 1 | 0 |
| united states | california | uncultured archaeon o23e2 | species | 1 | 0 |
| united states | california | uncultured methanomicrobiaceae archaeon | species | 3 | 0 |
| united states | florida | methanoculleus | genus | 0 | 1 |
| united states | florida | methanofollis | genus | 0 | 1 |
| united states | florida | uncultured methanomicrobiaceae archaeon | species | 1 | 0 |
| united states | illinois | methanocorpusculum | genus | 0 | 1 |
| united states | illinois | uncultured methanospirillaceae archaeon | species | 1 | 0 |
| united states | michigan | methanocorpusculum | genus | 0 | 1 |
| united states | michigan | methanoplanus | genus | 0 | 1 |
| united states | new jersey | uncultured methanoculleus sp. | species | 10 | 0 |
| united states | new york | methanosphaerula palustris | species | 3 | 0 |
| united states | new york | methanosphaerula palustris e1-9c | no rank | 4 | 0 |
| united states | new york | uncultured methanomicrobiales archaeon | species | 4 | 0 |
| united states | wisconsin | methanospirillum | genus | 0 | 1 |