Spiniferites |
Spiniferites ramosus
sp. nov. |
England(Yorkshire) |
Valanginian |
|
Muderongia |
Muderongia extensiva
sp. nov. |
England(Yorkshire) |
Valanginian |
Hauterivian |
Aprobolocysta |
Aprobolocysta varigranosa
sp. nov. |
England(Yorkshire) |
Valanginian |
Hauterivian |
Nematosphaeropsis |
Nematosphaeropsis scala
sp. nov. |
England(Yorkshire) |
Valanginian |
Hauterivian |
Cribroperidinium |
Cribroperidinium edwardsii
|
England(Yorkshire) |
Valanginian |
Barremian |
Ctenidodinium |
Ctenidodinium elegantulum
|
England(Yorkshire) |
Valanginian |
Barremian |
Discorsia |
Discorsia nannus
|
England(Yorkshire) |
Valanginian |
Barremian |
Gonyaulacysta |
Gonyaulacysta cladophora
|
England(Yorkshire) |
Valanginian |
Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
England(Yorkshire) |
Valanginian |
Barremian |
Oligosphaeridium |
Oligosphaeridium asterigerum
|
England(Yorkshire) |
Valanginian |
Barremian |
Oligosphaeridium |
Oligosphaeridium complex
|
England(Yorkshire) |
Valanginian |
Barremian |
Spiniferites |
Spiniferites ramosus
|
England(Yorkshire) |
Valanginian |
Barremian |
Fromea |
Fromea amphora
|
England(Yorkshire) |
Valanginian |
Barremian |
Muderongia |
Muderongia tetracantha
|
England(Yorkshire) |
Hauterivian |
|
Aprobolocysta |
Aprobolocysta eilema
sp. nov. |
England(Yorkshire) |
Hauterivian |
|
Spiniferites |
Spiniferites dentatus
|
England(Yorkshire) |
Hauterivian |
|
Lithodinia |
Lithodinia stoveri
|
England(Yorkshire) |
Hauterivian |
|