Genus Duosphaeridium
- Species total:
- 4
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Duosphaeridium | Mesozoic | Cenozoic |
|
| Duosphaeridium nudum | Late Paleocene | Middle Eocene |
|
| Duosphaeridium rugosum | Maastrichtian | Middle Eocene |
|
| Duosphaeridium sp | Early Oligocene | Early Oligocene |
|