| Name | From | To | Age range |
|---|---|---|---|
| Aremoricanium grootaertii | Tremadocian | Early Arenigian |
|
| Aremoricanium erchunense | Tremadocian | Arenigian |
|
| Aremoricanium testudinarium | Arenigian | Early Llanvirnian |
|
| Aremoricanium sp.A | Early Tremadocian | Early Llandeilian |
|
| Aremoricanium cylindrosum | Middle Ordovician | Llandeilian |
|
| Aremoricanium tosotrichion | Middle Ordovician | Llandeilian |
|
| Aremoricanium deflandrei | Early Paleozoic | Early Caradocian |
|
| Aremoricanium rigaudiae | Early Paleozoic | Caradocian |
|
| Aremoricanium decoratum | Arenigian | Caradocian |
|
| Aremoricanium squarrosum | Arenigian | Ashgillian |
|
| Aremoricanium syringosage | Late Arenigian | Early Llandoverian |
|
| Aremoricanium simplex | Tremadocian | Wenlockian |
|
| Aremoricanium sp | Early Ordovician | Ludlovian |
|
| Aremoricanium | Ordovician | Silurian |
|
| Aremoricanium carolineae | Middle Ordovician | Middle Ordovician |
|
| Aremoricanium sp.1 | Late Ordovician | Late Ordovician |
|
| Aremoricanium siluricum | Late Llandoverian | Late Llandoverian |
|