Gonyaulacysta |
Gonyaulacysta helicoidea
|
Australia |
Middle Cretaceous |
|
Gonyaulacysta |
Gonyaulacysta helicoidea
|
New Zealand |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Brazil(Offshore) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Atlantic Ocean(South) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Atlantic Ocean(North) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Africa(W.Africa) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Europe |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Africa(N.Africa) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Africa(NW.Africa) |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
North America |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Australia |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
New Zealand |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Antarctica |
Middle Cretaceous |
|
Heterosphaeridium |
Heterosphaeridium heteracanthum
|
Atlantic Ocean(North) |
Middle Cretaceous |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Brazil(Offshore) |
Middle Cretaceous |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Atlantic Ocean(South) |
Middle Cretaceous |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Africa(W.Africa) |
Middle Cretaceous |
|