Genus Hystrichosphaeropsis
- Species total:
- 30
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeropsis galeata | Oxfordian | Turonian |
|
| Hystrichosphaeropsis forficata | Late Campanian | Early Maastrichtian |
|
| Hystrichosphaeropsis perforata | Late Campanian | Maastrichtian |
|
| Hystrichosphaeropsis wetzelii | Cretaceous | Maastrichtian |
|
| Hystrichosphaeropsis irisiae | Maastrichtian | Late Maastrichtian |
|
| Hystrichosphaeropsis quasicribrata | Late Cretaceous | Montian |
|
| Hystrichosphaeropsis costae | Eocene | Lutetian |
|
| Hystrichosphaeropsis sp.1 Heil.,1989 | Late Ypresian | Lutetian |
|
| Hystrichosphaeropsis sp. Brin.& Biff.,1993 | Middle Eocene | Early Oligocene |
|
| Hystrichosphaeropsis rectangularis | Bartonian | Rupelian |
|
| Hystrichosphaeropsis complanata | Maastrichtian | Middle Miocene |
|
| Hystrichosphaeropsis sp | Albian | Serravallian |
|
| Hystrichosphaeropsis ovum | Early Cretaceous | Sarmatian |
|
| Hystrichosphaeropsis borussica | Paleocene | Miocene |
|
| Hystrichosphaeropsis arctica | Late Oligocene | Miocene |
|
| Hystrichosphaeropsis variabilis | Late Oligocene | Miocene |
|
| Hystrichosphaeropsis sp.A | Early Danian | Late Miocene |
|