| Family | Genus | Species |
|---|---|---|
| Haladaptataceae | 3 | 69 |
| Halalkalicoccaceae | 2 | 13 |
| Haloarculaceae | 10 | 593 |
| Halobacteriaceae | 7 | 513 |
| Halococcaceae | 1 | 112 |
| Haloferacaceae | 28 | 1613 |
| Halorubellaceae | 2 | 21 |
| Halorutilaceae | 1 | 1 |
| Natrialbaceae | 26 | 603 |
| Natronoarchaeaceae | 4 | 30 |
| Natronomonadaceae | 7 | 66 |