| Name | From | To | Age range |
|---|---|---|---|
| Aremoricanium cylindrosum | Middle Ordovician | Llandeilian |
|
| Aremoricanium sp.A | Early Tremadocian | Early Llandeilian |
|
| Aremoricanium testudinarium | Arenigian | Early Llanvirnian |
|
| Aremoricanium erchunense | Tremadocian | Arenigian |
|
| Aremoricanium grootaertii | Tremadocian | Early Arenigian |
|