| china | | methanoculleus bourgensis | species | 1 | 0 |
| germany | | methanoculleus bourgensis | species | 13 | 0 |
| germany | rhineland-palatinate | methanoculleus bourgensis | species | 0 | 1 |
| germany | saarland | methanoculleus bourgensis | species | 0 | 1 |
| india | | methanoculleus bourgensis | species | 1 | 0 |
| japan | fukuoka prefecture | methanoculleus bourgensis | species | 0 | 1 |
| south korea | | methanoculleus bourgensis | species | 1 | 0 |
| sweden | uppsala | methanoculleus bourgensis | species | 1 | 0 |