Genus Polysphaeridium
- Species total:
- 82
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polysphaeridium deflandrei | Late Toarcian | Bathonian |
|
| Polysphaeridium daveyi | Albian | Turonian |
|
| Polysphaeridium conispinum | Late Albian | Cenomanian |
|
| Polysphaeridium congregatum | Late Thanetian | Early Pliocene |
|
| Polysphaeridium chems | Middle Valanginian | Clansayesian |
|
| Polysphaeridium cephalum | Lutetian | Lutetian |
|
| Polysphaeridium caminuspinum | Hettangian | Hettangian |
|
| Polysphaeridium biformum | Early Eocene | Middle Eocene |
|
| Polysphaeridium belgicum | Eocene | Eocene |
|
| Polysphaeridium assamicum | Paleocene | Late Eocene |
|
| Polysphaeridium asperum | Maastrichtian | Early Pliocene |
|
| Polysphaeridium ambiguum | Vraconian | Early Turonian |
|
| Polysphaeridium amalthei | Pliensbachian | Pliensbachian |
|
| Polysphaeridium | Triassic | Cenozoic |
|