Genus Ferromia
- Species total:
- 4
- Age range:
- 500 - 468.33 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ferromia | Early Tremadocian | Early Tremadocian |
|
| Ferromia filosa | Ordovician | Ordovician |
|
| Ferromia pellita | Early Tremadocian | Early Llanvirnian |
|
| Ferromia sp | Late Arenigian | Early Llanvirnian |
|