Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
England(Yorkshire) |
Hauterivian |
Barremian |
Polysphaeridium |
Polysphaeridium laminaspinosum
|
England(Yorkshire) |
Hauterivian |
Barremian |
Protoellipsodinium |
Protoellipsodinium spinosum
|
England(Yorkshire) |
Hauterivian |
Barremian |
Spiniferites |
Spiniferites ramosus
|
England(Yorkshire) |
Hauterivian |
Barremian |
Systematophora |
Systematophora complicata
|
England(Yorkshire) |
Hauterivian |
Barremian |
Systematophora |
Systematophora schindewolfii
|
England(Yorkshire) |
Hauterivian |
Barremian |
Systematophora |
Systematophora vetuscula
|
England(Yorkshire) |
Hauterivian |
Barremian |
Deflandrea |
Deflandrea terrula
|
England(Yorkshire) |
Hauterivian |
Barremian |
Muderongia |
Muderongia crucis
|
England(Yorkshire) |
Hauterivian |
Barremian |
Muderongia |
Muderongia staurota
|
England(Yorkshire) |
Hauterivian |
Barremian |
Necrobroomea |
Necrobroomea jaegeri
|
England(Yorkshire) |
Hauterivian |
Barremian |
Necrobroomea |
Necrobroomea longicornuta
|
England(Yorkshire) |
Hauterivian |
Barremian |
Impletosphaeridium |
Impletosphaeridium whitei
|
England(Yorkshire) |
Hauterivian |
Barremian |
Wallodinium |
Wallodinium luna
|
England(Yorkshire) |
Hauterivian |
Barremian |
Aprobolocysta |
Aprobolocysta
|
England(Yorkshire) |
Hauterivian |
|
Athigmatocysta |
Athigmatocysta
|
England(Yorkshire) |
Berriasian |
Barremian |
Avellodinium |
Avellodinium
|
England(Yorkshire) |
Berriasian |
Barremian |