| antarctica | | isosphaera aff. pallida 10.9 | species | 1 | 0 |
| british virgin islands | | isosphaera sp. br2-1 | species | 1 | 0 |
| british virgin islands | | isosphaera sp. br2-4 | species | 1 | 0 |
| canada | nunavut | uncultured isosphaera sp. | species | 1 | 0 |
| china | | uncultured isosphaera sp. | species | 2 | 0 |
| china | hunan | uncultured isosphaera sp. | species | 60 | 0 |
| china | tibet | uncultured isosphaera sp. | species | 1 | 0 |
| japan | hokkaido prefecture | uncultured isosphaera sp. | species | 1 | 0 |
| netherlands | | uncultured isosphaera sp. | species | 2 | 0 |
| nigeria | | uncultured isosphaera sp. | species | 3 | 0 |
| norway | | uncultured isosphaera sp. | species | 1 | 0 |
| russia | moscow city | uncultured isosphaera sp. | species | 2 | 0 |
| russia | tomsk oblast | isosphaera | genus | 0 | 1 |
| spain | | uncultured isosphaera sp. | species | 4 | 0 |
| united states | hawaii | isosphaera sp. ha1-3 | species | 1 | 0 |
| united states | illinois | isosphaera sp. | species | 2 | 0 |
| united states | iowa | isosphaera sp. io1-4 | species | 1 | 0 |
| united states | iowa | isosphaera sp. io3-1 | species | 1 | 0 |
| united states | iowa | isosphaera sp. io3-2 | species | 1 | 0 |
| united states | iowa | isosphaera sp. io3-6 | species | 1 | 0 |
| united states | iowa | isosphaera sp. io4-1 | species | 1 | 0 |
| united states | oregon | isosphaera pallida | species | 1 | 0 |
| united states | oregon | isosphaera pallida atcc 43644 | no rank | 6 | 0 |
| united states | south dakota | isosphaera sp. sd1-2 | species | 1 | 0 |
| united states | south dakota | isosphaera sp. sd1-5 | species | 1 | 0 |
| united states | south dakota | isosphaera sp. sd2-3 | species | 1 | 0 |
| united states | texas | isosphaera sp. tx1-1 | species | 1 | 0 |
| united states | texas | isosphaera sp. tx1-2 | species | 1 | 0 |
| united states | texas | isosphaera sp. tx1-3 | species | 1 | 0 |
| united states | texas | isosphaera sp. tx1-4 | species | 1 | 0 |
| united states | washington | isosphaera sp. wa1-2 | species | 1 | 0 |
| united states | washington | isosphaera sp. wa1-3 | species | 1 | 0 |
| united states | washington | isosphaera sp. wa1-4 | species | 1 | 0 |
| united states | washington | isosphaera sp. wa1-7 | species | 1 | 0 |
| united states | washington | isosphaera sp. wa3-2 | species | 1 | 0 |