| Name | From | To | Age range |
|---|---|---|---|
| Aremoricanium sp.2 | Late Ordovician | Late Ordovician |
|
| Aremoricanium carolineae | Middle Ordovician | Middle Ordovician |
|
| Aremoricanium sp.1 | Late Ordovician | Late Ordovician |
|
| Aremoricanium siluricum | Late Llandoverian | Late Llandoverian |
|
| Aremoricanium sp. Uute.& Tynn.,1991 | Early Arenigian | Early Arenigian |
|