Achomosphaera |
Achomosphaera neptuni
|
North Sea |
Late Ryazanian |
Aptian |
Alisocysta |
Alisocysta sp
|
United Kingdom |
Late Maastrichtian |
|
Aprobolocysta |
Aprobolocysta eilema
|
United Kingdom |
Hauterivian |
|
Aprobolocysta |
Aprobolocysta neista
|
United Kingdom |
Hauterivian |
Barremian |
Apteodinium |
Apteodinium granulatum
|
North Sea |
Early Cretaceous |
Cenomanian |
Apteodinium |
Apteodinium maculatum
|
United Kingdom |
Late Albian |
|
Areoligera |
Areoligera senonensis
|
United Kingdom |
Late Campanian |
Maastrichtian |
Batioladinium |
Batioladinium jaegeri
|
United Kingdom |
Early Cenomanian |
Middle Cenomanian |
Batioladinium |
Batioladinium longicornutum
|
North Sea |
Hauterivian |
Late Barremian |
Batioladinium |
Batioladinium micropodum
|
United Kingdom |
Aptian |
Albian |
Batioladinium |
Batioladinium radiculatum
|
United Kingdom |
Ryazanian |
|
Batioladinium |
Batioladinium varigranosum
|
United Kingdom |
Valanginian |
Early Hauterivian |
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
North Sea |
Hauterivian |
Early Campanian |
Callaiosphaeridium |
Callaiosphaeridium trycherium
|
North Sea |
Late Hauterivian |
Aptian |
Callaiosphaeridium |
Callaiosphaeridium trycherium
|
United Kingdom |
Late Hauterivian |
Early Aptian |
Canningia |
Canningia reticulata
|
North Sea |
Late Hauterivian |
|
Canningia |
Canningia reticulata
|
United Kingdom |
Hauterivian |
|