| Name | From | To | Age range |
|---|---|---|---|
| Isoetes tuberculata | Eocene | Eocene |
|
| Isoetes beutleri | Cenomanian | Cenomanian |
|
| Isoetes rajasthanensis | Eocene | Eocene |
|
| Isoetes echinospora | Late Neogene | Late Neogene |
|
| Isoetes coromandelina | Cenomanian | Cenomanian |
|
| Isoetes hystrix | Early Pliocene | Early Pliocene |
|