| brazil | minas gerais | uncultured geosiphonaceae | species | 5 | 0 |
| cameroon | | geosiphon pyriformis | species | 1 | 0 |
| china | | uncultured geosiphonaceae | species | 1 | 0 |
| germany | | geosiphon pyriformis | species | 4 | 0 |
| germany | hesse | geosiphon pyriformis | species | 7 | 0 |
| japan | shimane prefecture | uncultured geosiphonaceae | species | 1 | 0 |