| Name | From | To | Age range |
|---|---|---|---|
| Azolla glabra | Chattian | Early Piacenzian |
|
| Azolla monilifera | Miocene | Piacenzian |
|
| Azolla pseudopinnata | Chattian | Piacenzian |
|
| Azolla aspera | Tertiary | Piacenzian |
|
| Azolla dorofeevii | Late Miocene | Late Neogene |
|
| Azolla cretacea | Cretaceous | Tertiary |
|
| Azolla parvula | Toarcian | Piacenzian |
|
| Azolla ventricosa | Tertiary | Piacenzian |
|
| Azolla pyrenaica | Late Neogene | Pleistocene |
|
| Azolla interglacialica | Langhian | Pleistocene |
|
| Azolla tegeliensis | Middle Miocene | Pleistocene |
|
| Azolla sp | Dogger | Pleistocene |
|
| Azolla distincta | Cretaceous | Recent |
|
| Azolla barbata | Cretaceous | Recent |
|
| Azolla pinnata | Paleocene | Recent |
|
| Azolla montana | Cretaceous | Recent |
|
| Azolla | Givetian | Recent |
|