Genus Porusphaera
- Species total:
- 11
- Age range:
- 117 - 1.8 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Porusphaera sp.2 | Early Oligocene | Middle Oligocene |
|
| Porusphaera sp.1 | Early Oligocene | Middle Oligocene |
|
| Porusphaera sp. Zhu et al,1985 | Late Eocene | Oligocene |
|
| Porusphaera sp. Lang et al,1999 | Barremian | Aptian |
|
| Porusphaera sp | Middle Eocene | Oligocene |
|
| Porusphaera pylophora | Barremian | Aptian |
|
| Porusphaera neimonggolensis | Late Paleocene | Eocene |
|
| Porusphaera foveolata | Late Cretaceous | Early Eocene |
|
| Porusphaera erenensis | Barremian | Aptian |
|
| Porusphaera bellatula | Middle Eocene | Late Oligocene |
|
| Porusphaera | Paleogene | Pliocene |
|