| Family | Genus | Species |
|---|---|---|
| Amphidomataceae | 2 | 25 |
| Calciodinellaceae | 1 | 1 |
| Ceratiaceae | 3 | 62 |
| Ceratocoryaceae | 0 | 0 |
| Cladopyxidaceae | 1 | 3 |
| Crypthecodiniaceae | 1 | 53 |
| Goniodomataceae | 0 | 0 |
| Gonyaulacaceae | 6 | 47 |
| Heterodiniaceae | 1 | 6 |
| Lingulodiniaceae | 2 | 3 |
| Protoceratiaceae | 4 | 17 |
| Pyrocystaceae | 7 | 209 |
| Pyrophacaceae | 1 | 10 |