| Name | From | To | Age range |
|---|---|---|---|
| Osmunda irregulites | Eocene | Early Pliocene |
|
| Osmunda intermedia | Keuper | Late Jurassic |
|
| Osmunda heterophyllites | Early Eocene | Middle Eocene |
|
| Osmunda heeri | Miocene | Late Miocene |
|
| Osmunda granulata | Early Olenikian | Tertiary |
|
| Osmunda granifera | Middle Triassic | Barremian |
|
| Osmunda gleitoniana | Late Neogene | Late Neogene |
|
| Osmunda exilis | Dogger | Dogger |
|
| Osmunda elegans | Jurassic | Cenomanian |
|
| Osmunda echinata | Early Jurassic | Late Eocene |
|
| Osmunda diversispinulata | Jurassic | Maastrichtian |
|
| Osmunda diversiornamentata | Early Jurassic | Early Jurassic |
|
| Osmunda dicksoniodes | Cretaceous | Cretaceous |
|
| Osmunda diamensis | Jurassic | Jurassic |
|
| Osmunda densiornamentata | Early Jurassic | Danian |
|
| Osmunda crassirimosa | Early Jurassic | Turonian |
|
| Osmunda comaumensis | Late Cretaceous | Paleocene |
|