Hystrichosphaera |
Hystrichosphaera pseudofurcata
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera pterota
|
England(Isle of Wight) |
Cenomanian |
Turonian |
Hystrichosphaera |
Hystrichosphaera pterota
|
Australia(W.Australia) |
Albian |
Early Maastrichtian |
Hystrichosphaera |
Hystrichosphaera pterota
|
England |
Middle Cenomanian |
Late Cenomanian |
Hystrichosphaera |
Hystrichosphaera ramosa
|
Worldwide |
Late Cretaceous |
Recent |
Hystrichosphaera |
Hystrichosphaera ramosa
|
E.Germany |
Senonian |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
France |
Late Cretaceous |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
England |
Cenomanian |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
England |
Eocene |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
England |
Hauterivian |
Ypresian |
Hystrichosphaera |
Hystrichosphaera ramosa
|
England |
Eocene |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
Germany |
Aptian |
|
Hystrichosphaera |
Hystrichosphaera reginaldii
|
England |
Senonian |
|
Hystrichosphaera |
Hystrichosphaera rubina
|
Caribbean |
Quaternary |
|
Hystrichosphaera |
Hystrichosphaera scabrata
|
Caribbean |
Quaternary |
|
Hystrichosphaera |
Hystrichosphaera scabrosa
|
England(Isle of Wight) |
Cenomanian |
|
Hystrichosphaera |
Hystrichosphaera setosa
|
France |
Senonian |
|