Genus Membranigonyaulax
- Species total:
- 4
- Age range:
- 76 - 61.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Membranigonyaulax | Campanian | Early Maastrichtian |
|
| Membranigonyaulax granulata | Campanian | Early Maastrichtian |
|
| Membranigonyaulax prominesepta | Campanian | Campanian |
|
| Membranigonyaulax wilsonii | Campanian | Danian |
|