| Name | From | To | Age range |
|---|---|---|---|
| Isoetes savatieri | Late Oligocene | Middle Miocene |
|
| Isoetes setaceum | Early Pliocene | Early Pliocene |
|
| Isoetes sp | Late Permian | Quaternary |
|
| Isoetes subengelmanni | Late Cretaceous | Early Paleocene |
|
| Isoetes tuberculata | Eocene | Eocene |
|
| Isoetes velatum | Early Pliocene | Early Pliocene |
|