| Nominal Species (n = 6) | Present allocation (n = 6) | Ref. |
|---|---|---|
| Peridinium aciculiferum Lemmermann | Peridinium aciculiferum | 80701 |
| Peridinium godlewskii Woloszynska | Peridinium godlewskii | 80701 |
| Peridinium keyense Nygaard | Peridinium keyense | 80701 |
| Peridinium umbonatum F.Stein | Peridinium umbonatum | 80701 |
| Peridinium willei Huitfeldt-Kaas | Peridinium willei | 80701 |
| Peridinium wisconsinense Eddy | Peridinium wisconsinense | 80701 |