| Name | From | To | Age range |
|---|---|---|---|
| Geiselodinium | Mesozoic | Cenozoic |
|
| Geiselodinium apicidentatum | Early Tertiary | Early Tertiary |
|
| Geiselodinium cenomanicum | Late Cenomanian | Late Cenomanian |
|
| Geiselodinium dalangshanense | Late Cretaceous | Late Cretaceous |
|
| Geiselodinium eocenicum | Eocene | Late Eocene |
|
| Geiselodinium fibrirugulare | Late Cretaceous | Late Cretaceous |
|
| Geiselodinium geiseltalense | Eocene | Late Eocene |
|
| Geiselodinium hallense | Eocene | Late Eocene |
|
| Geiselodinium inaffectum | Jurassic | Middle Cenomanian |
|
| Geiselodinium maslinense | Middle Miocene | Middle Miocene |
|
| Geiselodinium micropodum | Late Cretaceous | Late Cretaceous |
|
| Geiselodinium minus | Late Cretaceous | Late Cretaceous |
|
| Geiselodinium minutum | Late Cretaceous | Eocene |
|
| Geiselodinium miocenicum | Miocene | Miocene |
|
| Geiselodinium ovatum | Late Eocene | Early Oligocene |
|
| Geiselodinium paeminosum | Oxfordian | Tithonian |
|
| Geiselodinium psilatum | Campanian | Maastrichtian |
|