Hystrichosphaera |
Hystrichosphaera speciosa
|
W.Germany |
Middle Miocene |
|
Hystrichosphaera |
Hystrichosphaera speciosa
|
Australia(NSW) |
Early Cretaceous |
|
Hystrichosphaera |
Hystrichosphaera speciosa
|
Australia(Victoria) |
Paleocene |
|
Hystrichosphaera |
Hystrichosphaera speciosa
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaera |
Hystrichosphaera supparus
|
California |
Maastrichtian |
Danian |
Hystrichosphaera |
Hystrichosphaera tenuicapillata
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera tertiaria
|
W.Germany |
Early Eocene |
|
Hystrichosphaera |
Hystrichosphaera tertiaria
|
Caribbean |
Pleistocene |
|
Hystrichosphaera |
Hystrichosphaera tertiaria
|
Germany(Prussia) |
Late Eocene |
Early Oligocene |
Hystrichosphaera |
Hystrichosphaera tertiaria
|
Germany |
Early Eocene |
|
Hystrichosphaera |
Hystrichosphaera wetzelii
|
Australia(W.Australia) |
Cretaceous |
|
Hystrichosphaera |
Hystrichosphaera wetzelii
|
France(Paris Basin) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium arborispinum
|
England(Yorkshire) |
Early Barremian |
Middle Barremian |
Hystrichosphaeridium |
Hystrichosphaeridium aruncium
|
Kansas |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium arundum
|
Australia(W.Australia) |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium arundum
|
Australia(NSW) |
Albian |
|
Hystrichosphaeridium |
Hystrichosphaeridium bowerbankii
|
England(Surrey) |
Cenomanian |
|