Genus Nigrina
- Species total:
- 13
- Age range:
- 280 - 100 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Nigrina nigritella | Permian | Permian |
|
| Nigrina sp | Induan | Middle Albian |
|
| Nigrina nigritelliformis | Triassic | Liassic |
|
| Nigrina exinelloides | Keuper | Liassic |
|
| Nigrina sp.2 | Rhaetian | Rhaetian |
|
| Nigrina nigritellaeformis | Rhaetian | Rhaetian |
|
| Nigrina trilistrella | Early Bajocian | Early Bajocian |
|
| Nigrina ornata | Early Cretaceous | Early Cretaceous |
|
| Nigrina maxima | Early Cretaceous | Early Cretaceous |
|
| Nigrina anulata | Early Cretaceous | Early Cretaceous |
|
| Nigrina | Early Cretaceous | Early Cretaceous |
|
| Nigrina simplex | Early Cretaceous | Early Cretaceous |
|
| Nigrina clavatoides | Aptian | Late Albian |
|