Genus Hystrichosphaeropsis
- Species total:
- 30
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Hystrichosphaeropsis | Mesozoic | Cenozoic |
|
Hystrichosphaeropsis arctica | Late Oligocene | Miocene |
|
Hystrichosphaeropsis borussica | Paleocene | Miocene |
|
Hystrichosphaeropsis complanata | Maastrichtian | Middle Miocene |
|
Hystrichosphaeropsis costae | Eocene | Lutetian |
|
Hystrichosphaeropsis downiei | Kimmeridgian | Kimmeridgian |
|
Hystrichosphaeropsis forficata | Late Campanian | Early Maastrichtian |
|
Hystrichosphaeropsis galeata | Oxfordian | Turonian |
|
Hystrichosphaeropsis irisiae | Maastrichtian | Late Maastrichtian |
|
Hystrichosphaeropsis jubata | Maastrichtian | Maastrichtian |
|
Hystrichosphaeropsis minimum | Badenian | Badenian |
|
Hystrichosphaeropsis nuda | Late Cretaceous | Late Cretaceous |
|
Hystrichosphaeropsis obscura | Early Ypresian | Recent |
|
Hystrichosphaeropsis ovatum | Nd | Nd |
|
Hystrichosphaeropsis ovum | Early Cretaceous | Sarmatian |
|
Hystrichosphaeropsis perforata | Late Campanian | Maastrichtian |
|
Hystrichosphaeropsis pontiana | Middle Oligocene | Early Pliocene |
|