Hystrichosphaerina |
Hystrichosphaerina
|
England(Yorkshire) |
Barremian |
|
Hystrichosphaerina |
Hystrichosphaerina anthophora
|
England(Yorkshire) |
Aptian |
Albian |
Hystrichosphaerina |
Hystrichosphaerina anthophora
|
Australia(W.Australia) |
Oxfordian |
Tithonian |
Hystrichosphaerina |
Hystrichosphaerina calatha
|
England(Yorkshire) |
Early Oxfordian |
|
Hystrichosphaerina |
Hystrichosphaerina paracalatha
|
England(Dorset) |
Middle Callovian |
|
Hystrichosphaerina |
Hystrichosphaerina sarjeantii
|
France |
Early Kimmeridgian |
|
Hystrichosphaerina |
Hystrichosphaerina sarjeantii
|
England |
Early Kimmeridgian |
|
Hystrichosphaerina |
Hystrichosphaerina schindewolfii
|
England(Yorkshire) |
Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
England(Yorkshire) |
Middle Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium fasciatum
|
England(Yorkshire) |
Early Barremian |
|
Kleithriasphaeridium |
Kleithriasphaeridium simplicispinum
|
England(Yorkshire) |
Barremian |
|
Leptodinium |
Leptodinium alectrolophum
|
England(Yorkshire) |
Middle Barremian |
|
Lithodinia |
Lithodinia
|
Poland |
Callovian |
|
Lithodinia |
Lithodinia sagena
sp. nov. |
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Lithodinia |
Lithodinia stoveri
|
England(Yorkshire) |
Barremian |
|
Muderongia |
Muderongia crucis
|
England(Yorkshire) |
Early Barremian |
|
Muderongia |
Muderongia imparilis
sp. nov. |
England(Yorkshire) |
Middle Barremian |
Late Barremian |