Gonyaulax |
Gonyaulax edwardsii
|
Australia(W.Australia) |
Albian |
Early Turonian |
Gonyaulax |
Gonyaulax microceras
|
England(Isle of Wight) |
Santonian |
|
Gonyaulax |
Gonyaulax microceras
|
W.Germany(Schleswig) |
Late Aptian |
|
Hexagonifera |
Hexagonifera chlamydata
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Hexasphaera |
Hexasphaera
|
France(Normandie) |
Turonian |
|
Hexasphaera |
Hexasphaera asymmetrica
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Hexasphaera |
Hexasphaera asymmetrica
|
France(Normandie) |
Turonian |
|
Hystrichodinium |
Hystrichodinium
|
France(Paris Basin) |
Senonian |
|
Hystrichodinium |
Hystrichodinium alatum
|
England(Isle of Wight) |
Cenomanian |
Turonian |
Hystrichodinium |
Hystrichodinium alatum
|
Australia(W.Australia) |
Albian |
Cenomanian |
Hystrichodinium |
Hystrichodinium patriciae
|
Nd |
Nd |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Hystrichodinium |
Hystrichodinium voigtii
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera cingulata
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Hystrichosphaera |
Hystrichosphaera cingulata
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Hystrichosphaera |
Hystrichosphaera cingulata
|
England(Isle of Wight) |
Cenomanian |
|
Hystrichosphaera |
Hystrichosphaera cingulata
sp. nov. |
England(Isle of Wight) |
Cenomanian |
|