Genus Biconidinium
- Species total:
- 4
- Age range:
- 94 - 49 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Biconidinium | Cuisian | Cuisian |
|
| Biconidinium longissimum | Late Paleocene | Late Ypresian |
|
| Biconidinium reductum | Campanian | Maastrichtian |
|
| Biconidinium sp | Turonian | Early Maestrichtian |
|