| Name | From | To | Age range |
|---|---|---|---|
| Obtusisporis concavus | Late Jurassic | Late Jurassic |
|
| Obtusisporis canadensis | Early Triassic | Albian |
|
| Obtusisporis apilobatus | Middle Albian | Early Cenomanian |
|
| Obtusisporis | Scythian | Senonian |
|