| Name | From | To | Age range |
|---|---|---|---|
| Azolla anglica | Paleocene | Early Eocene |
|
| Azolla circinata | Cretaceous | Paleocene |
|
| Azolla filosa | Cretaceous | Thanetian |
|
| Azolla sp. Ruiz & Quat.,1997 | Maastrichtian | Paleocene |
|
| Azolla elegans | Danian | Thanetian |
|
| Azolla conspicua | Cretaceous | Thanetian |
|
| Azolla lauta | Cretaceous | Thanetian |
|
| Azolla schopfi | Cretaceous | Paleocene |
|
| Azolla fistulosa | Cretaceous | Paleocene |
|
| Azolla filiformis | Late Cretaceous | Thanetian |
|
| Azolla velus | Late Cretaceous | Thanetian |
|
| Azolla bulbosa | Cretaceous | Thanetian |
|
| Azolla echinata | Campanian | Early Maastrichtian |
|
| Azolla hamata | Cretaceous | Early Maastrichtian |
|
| Azolla simplex | Berriasian | Campanian |
|
| Azolla sagittifera | Late Albian | Cenomanian |
|