Achomosphaera |
Achomosphaera neptuni
|
England(Yorkshire) |
Ryazanian |
Albian |
Adnatosphaeridium |
Adnatosphaeridium apiculatum
|
England(Yorkshire) |
Volgian |
Ryazanian |
Dingodinium |
Dingodinium spinosum
|
England(Yorkshire) |
Volgian |
Ryazanian |
Callaiosphaeridium |
Callaiosphaeridium asymmetricum
|
England(Yorkshire) |
Hauterivian |
Santonian |
Canningia |
Canningia reticulata
|
England(Yorkshire) |
Hauterivian |
|
Canninginopsis |
Canninginopsis tabulata
|
England(Yorkshire) |
Barremian |
Aptian |
Carpodinium |
Carpodinium granulatum
|
England(Yorkshire) |
Barremian |
Albian |
Cassiculosphaeridia |
Cassiculosphaeridia magna
|
England(Yorkshire) |
Volgian |
Barremian |
Coronifera |
Coronifera oceanica
|
England(Yorkshire) |
Hauterivian |
Maastrichtian |
Dingodinium |
Dingodinium albertii
|
England(Yorkshire) |
Volgian |
Aptian |
Occisucysta |
Occisucysta evittii
|
England(Yorkshire) |
Volgian |
Valanginian |
Endoscrinium |
Endoscrinium campanula
|
England(Yorkshire) |
Valanginian |
Coniacian |
Nelchinopsis |
Nelchinopsis kostromiensis
|
England(Yorkshire) |
Valanginian |
Hauterivian |
Heslertonia |
Heslertonia heslertonensis
|
England(Yorkshire) |
Valanginian |
Albian |
Systematophora |
Systematophora vetuscula
|
England(Yorkshire) |
Hauterivian |
Barremian |
Muderongia |
Muderongia crucis
|
England(Yorkshire) |
Hauterivian |
Barremian |
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
England(Yorkshire) |
Ryazanian |
Barremian |