Achomosphaera |
Achomosphaera neptuni
|
England(Yorkshire) |
Middle Barremian |
|
Achomosphaera |
Achomosphaera neptuni
|
England(Yorkshire) |
Barremian |
|
Achomosphaera |
Achomosphaera ramulifera
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Aprobolocysta |
Aprobolocysta
|
England(Yorkshire) |
Hauterivian |
|
Aprobolocysta |
Aprobolocysta neista
sp. nov. |
England(Yorkshire) |
Barremian |
|
Aptea |
Aptea anaphrissa
|
England(Yorkshire) |
Early Barremian |
|
Avellodinium |
Avellodinium falsificum
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Bacchidinium |
Bacchidinium
|
England(Yorkshire) |
Barremian |
|
Batioladinium |
Batioladinium jaegeri
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Batioladinium |
Batioladinium longicornutum
|
England(Yorkshire) |
Barremian |
|
Batioladinium |
Batioladinium micropodum
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Callaiosphaeridium |
Callaiosphaeridium
|
England(Yorkshire) |
Barremian |
|
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Yorkshire) |
Barremian |
|
Callaiosphaeridium |
Callaiosphaeridium trycherium
sp. nov. |
England(Yorkshire) |
Early Barremian |
Middle Barremian |
Canninginopsis |
Canninginopsis tabulata
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Cannosphaeropsis |
Cannosphaeropsis elegantula
|
California |
Danian |
|
Cannosphaeropsis |
Cannosphaeropsis pusulosa
|
England(Yorkshire) |
Middle Barremian |
|