| Name | From | To | Age range |
|---|---|---|---|
| Osmunda pseudoregalis | Middle Jurassic | Middle Jurassic |
|
| Osmunda primaria | Middle Eocene | Late Eocene |
|
| Osmunda plicata | Liassic | Dogger |
|
| Osmunda parvituberculata | Middle Triassic | Middle Triassic |
|
| Osmunda papulosa | Late Jurassic | Barremian |
|
| Osmunda papillata | Induan | Albian |
|
| Osmunda obsoletorimosa | Early Jurassic | Turonian |
|
| Osmunda nicanica | Early Jurassic | Cenomanian |
|
| Osmunda meanica | Cretaceous | Tertiary |
|
| Osmunda marginirimus | Callovian | Early Kimmeridgian |
|
| Osmunda major | Late Jurassic | Middle Valanginian |
|
| Osmunda magna | Jurassic | Late Cretaceous |
|
| Osmunda longirimosa | Early Jurassic | Turonian |
|
| Osmunda lignitum | Middle Oligocene | Middle Oligocene |
|
| Osmunda jurassica | Late Permian | Albian |
|
| Osmunda javanica | Early Tertiary | Pleistocene |
|
| Osmunda japonica | Pliocene | Pleistocene |
|