| Name | From | To | Age range |
|---|---|---|---|
| Polychaetaspis | Ordovician | Silurian |
|
| Polychaetaspis aequilateralis | Silurian | Late Gothlandian |
|
| Polychaetaspis cooperi | Devonian | Devonian |
|
| Polychaetaspis gadomskae | Middle Ordovician | Late Ashgillian |
|
| Polychaetaspis hindei | Late Devonian | Late Devonian |
|
| Polychaetaspis incisus | Middle Ordovician | Oandu |
|
| Polychaetaspis inconstans | Silurian | Silurian |
|
| Polychaetaspis kozlowskii | Late Gothlandian | Late Gothlandian |
|
| Polychaetaspis latus | Early Ordovician | Silurian |
|
| Polychaetaspis marlenediesae | Nd | Nd |
|
| Polychaetaspis obliquus | Nd | Nd |
|
| Polychaetaspis oklahomensis | Early Ordovician | Middle Ordovician |
|
| Polychaetaspis sp | Ordovician | Wenlockian |
|
| Polychaetaspis sp.A | Ordovician | Ordovician |
|
| Polychaetaspis sp.A Erik.,1996 | Nd | Nd |
|
| Polychaetaspis sp.A Hint.,1998 | Llandeilian | Rakvere |
|
| Polychaetaspis sp.B Hint.,1998 | Johvi | Keila |
|