| Name | From | To | Age range |
|---|---|---|---|
| Osmunda | Late Carboniferous | Cenozoic |
|
| Osmunda banksiifolia | Pleistocene | Pleistocene |
|
| Osmunda bromeliifolia | Paleogene | Neogene |
|
| Osmunda bulbosa | Liassic | Early Cretaceous |
|
| Osmunda cinamomea | Late Neogene | Late Neogene |
|
| Osmunda cingulata | Middle Jurassic | Middle Jurassic |
|
| Osmunda cinnamomea | Kungurian | Middle Pleistocene |
|
| Osmunda cinnamomeiformis | Early Jurassic | Middle Jurassic |
|
| Osmunda cinnamomites | Late Miocene | Early Pliocene |
|
| Osmunda cladophlebiformis | Triassic | Triassic |
|
| Osmunda claytoniana | Aptian | Pleistocene |
|
| Osmunda comaumensis | Late Cretaceous | Paleocene |
|
| Osmunda crassirimosa | Early Jurassic | Turonian |
|
| Osmunda densiornamentata | Early Jurassic | Danian |
|
| Osmunda diamensis | Jurassic | Jurassic |
|
| Osmunda dicksoniodes | Cretaceous | Cretaceous |
|
| Osmunda diversiornamentata | Early Jurassic | Early Jurassic |
|