Hystrichosphaeridium |
Hystrichosphaeridium mineralosum
|
Nd |
Eocene |
Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium mineralosum
|
Nd |
Eocene |
Oligocene |
Hystrichosphaeridium |
Hystrichosphaeridium mineralosum
|
Nd |
Early Eocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium monstruosum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium multicornutum
|
Nd |
Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium multifurcatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium oligacanthum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium pachydermum
|
Nd |
Oxfordian |
Tithonian |
Hystrichosphaeridium |
Hystrichosphaeridium palmatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium paradoxum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium parvispinum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium parvum
|
Nd |
Campanian |
Maastrichtian |
Hystrichosphaeridium |
Hystrichosphaeridium patulum
|
Nd |
Early Eocene |
|