Genus Betpakdalina
- Species total:
- 11
- Age range:
- 141 - 1.8 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Betpakdalina | Cretaceous | Paleocene |
|
| Betpakdalina barbulata | Cretaceous | Early Paleocene |
|
| Betpakdalina minuta | Senonian | Maastrichtian |
|
| Betpakdalina pentaoculata | Campanian | Maastrichtian |
|
| Betpakdalina pentaoculoides | Late Cretaceous | Maestrichtian |
|
| Betpakdalina protuberantis | Senonian | Maastrichtian |
|
| Betpakdalina sp | Cretaceous | Tertiary |
|
| Betpakdalina sp. Polu.et al,1966 | Campanian | Maestrichtian |
|
| Betpakdalina tetrabarbata | Albian | Danian |
|
| Betpakdalina tetrabarbulata | Early Tertiary | Early Tertiary |
|
| Betpakdalina triangulata | Cretaceous | Tertiary |
|