| Name | From | To | Age range |
|---|---|---|---|
| Alexandrium peruvianum | Nd | Nd |
|
| Alexandrium pseudogoniaulax | Nd | Nd |
|
| Alexandrium pseudogonyaulax | Nd | Nd |
|
| Alexandrium sp | Recent | Recent |
|
| Alexandrium sp.2 | Nd | Nd |
|
| Alexandrium sp.3 | Nd | Nd |
|
| Alexandrium sp.4 | Nd | Nd |
|
| Alexandrium tamarense | Quaternary | Quaternary |
|
| Alexandrium tamiyavanichii | Nd | Nd |
|
| Alexandrium taylorii | Nd | Nd |
|