Genus Polysphaeridium
- Species total:
- 82
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polysphaeridium marsupium | Early Cretaceous | Early Cretaceous |
|
| Polysphaeridium fabium | Early Cretaceous | Early Cretaceous |
|
| Polysphaeridium polypes | Cretaceous | Cretaceous |
|
| Polysphaeridium warrenii | Berriasian | Early Cenomanian |
|
| Polysphaeridium multispinosum | Valanginian | Early Albian |
|
| Polysphaeridium flexuosum | Valanginian | Aptian |
|
| Polysphaeridium sp.AE | Early Valanginian | Middle Valanginian |
|
| Polysphaeridium chems | Middle Valanginian | Clansayesian |
|
| Polysphaeridium duma | Late Valanginian | Clansayesian |
|
| Polysphaeridium pumilum | Late Hauterivian | Early Danian |
|
| Polysphaeridium sarjeantii | Barremian | Barremian |
|
| Polysphaeridium sp.I | Late Aptian | Early Albian |
|
| Polysphaeridium subtile | Albian | Zanclean |
|
| Polysphaeridium daveyi | Albian | Turonian |
|
| Polysphaeridium ambiguum | Vraconian | Early Turonian |
|
| Polysphaeridium conispinum | Late Albian | Cenomanian |
|
| Polysphaeridium type 460 | Late Albian | Early Cenomanian |
|