Genus Williamsidinium
- Species total:
- 4
- Age range:
- 71 - 65 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Williamsidinium | Late Campanian | Maastrichtian |
|
| Williamsidinium banksianum | Late Campanian | Maastrichtian |
|
| Williamsidinium sp | Paleocene | Paleocene |
|
| Williamsidinium sp. Kuri.& McIn.,1995 | Paleocene | Paleocene |
|