Genus Polysphaeridium
- Species total:
- 82
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polysphaeridium granulosum | Campanian | Maastrichtian |
|
| Polysphaeridium sp. Sala.,1991 | Campanian | Maastrichtian |
|
| Polysphaeridium rhabdophorum | Cretaceous | Maastrichtian |
|
| Polysphaeridium pumilum | Late Hauterivian | Early Danian |
|
| Polysphaeridium williamsi | Cenomanian | Paleocene |
|
| Polysphaeridium majus | Late Cretaceous | Early Eocene |
|
| Polysphaeridium fluctuans | Early Eocene | Middle Eocene |
|
| Polysphaeridium biformum | Early Eocene | Middle Eocene |
|
| Polysphaeridium sp. Xu et al,1997 | Middle Eocene | Late Eocene |
|
| Polysphaeridium elegantulum | Tertiary | Priabonian |
|
| Polysphaeridium giganteum | Paleocene | Eocene |
|
| Polysphaeridium assamicum | Paleocene | Late Eocene |
|
| Polysphaeridium sp. Mart.,1993 | Middle Oligocene | Late Oligocene |
|
| Polysphaeridium pseudocolligerum | Eocene | Early Miocene |
|
| Polysphaeridium sp.B | Cenomanian | Burdigalian |
|
| Polysphaeridium simplex | Late Cretaceous | Middle Miocene |
|
| Polysphaeridium inflectospinum | Oligocene | Serravallian |
|