| Name | From | To | Age range |
|---|---|---|---|
| Isoetes elegans | Hettangian | Tithonian |
|
| Isoetes echinospora | Late Neogene | Late Neogene |
|
| Isoetes diviale | Tertiary | Quaternary |
|
| Isoetes coromandelina | Cenomanian | Cenomanian |
|
| Isoetes beutleri | Cenomanian | Cenomanian |
|
| Isoetes | Mesozoic | Late Quaternary |
|