Hystrichosphaeridium |
Hystrichosphaeridium machaerophorum
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera borussica
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium inodes
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium microtriainum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium centrocarpum
|
Nd |
Nd |
|
Cordosphaeridium |
Cordosphaeridium tiara
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium colligerum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium caulleryi
|
Nd |
Nd |
|
Membranilarnacia |
Membranilarnacia reticulata
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium multispinosum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium langii
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium ambiguum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium reticulatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium alcicornu
|
Poland |
Early Oligocene |
|
Achomosphaera |
Achomosphaera alcicornu
|
Poland |
Early Oligocene |
|