| Family | Genus | Species |
|---|---|---|
| Chaetonotidae | 14 | 161 |
| Dactylopodolidae | 2 | 11 |
| Dasydytidae | 4 | 11 |
| Hummondasyidae | 1 | 1 |
| Lepidodasyidae | 7 | 32 |
| Macrodasyidae | 4 | 32 |
| Muselliferidae | 1 | 2 |
| Neodasyidae | 1 | 15 |
| Neogosseidae | 2 | 4 |
| Planodasyidae | 1 | 4 |
| Thaumastodermatidae | 9 | 78 |
| Turbanellidae | 2 | 32 |
| Xenotrichulidae | 3 | 28 |