Genus Hystrichosphaeropsis
- Species total:
- 30
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeropsis quasicribrata | Late Cretaceous | Montian |
|
| Hystrichosphaeropsis rectangularis | Bartonian | Rupelian |
|
| Hystrichosphaeropsis somphosa | Late Miocene | Late Miocene |
|
| Hystrichosphaeropsis sp | Albian | Serravallian |
|
| Hystrichosphaeropsis sp. Brin.& Biff.,1993 | Middle Eocene | Early Oligocene |
|
| Hystrichosphaeropsis sp.1 | Eocene | Eocene |
|
| Hystrichosphaeropsis sp.1 Heil.,1989 | Late Ypresian | Lutetian |
|
| Hystrichosphaeropsis sp.A | Early Danian | Late Miocene |
|
| Hystrichosphaeropsis sp.A Pros.,1997 | Middle Rupelian | Middle Rupelian |
|
| Hystrichosphaeropsis sp.B | Middle Eocene | Middle Eocene |
|
| Hystrichosphaeropsis tubulata | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeropsis variabilis | Late Oligocene | Miocene |
|
| Hystrichosphaeropsis wetzelii | Cretaceous | Maastrichtian |
|