Genus Biswasiaspora
- Species total:
- 4
- Age range:
- 54.5 - 37.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Biswasiaspora | Middle Eocene | Late Eocene |
|
| Biswasiaspora baculata | Middle Eocene | Late Eocene |
|
| Biswasiaspora pseudoreticulata | Middle Eocene | Late Eocene |
|
| Biswasiaspora sp. Kar & Bhat.,1992 | Early Eocene | Early Eocene |
|