Stiphrosphaeridium |
Stiphrosphaeridium dictyophorum
|
North Sea |
Portlandian |
Ryazanian |
Subtilisphaera |
Subtilisphaera perlucida
|
England(Yorkshire) |
Late Hauterivian |
Early Albian |
Surculosphaeridium |
Surculosphaeridium longifurcatum
|
North Sea |
Early Cretaceous |
Early Santonian |
Surculosphaeridium |
Surculosphaeridium trunculum
|
United Kingdom |
Aptian |
Early Albian |
Systematophora |
Systematophora cretacea
|
United Kingdom |
Middle Albian |
|
Systematophora |
Systematophora palmula
|
United Kingdom |
Late Ryazanian |
Early Valanginian |
Systematophora |
Systematophora silybum
|
United Kingdom |
Aptian |
|
Tanyosphaeridium |
Tanyosphaeridium variecalamum
|
United Kingdom |
Turonian |
Santonian |
Tehamadinium |
Tehamadinium daveyi
|
North Sea |
Late Ryazanian |
Early Valanginian |
Tenua |
Tenua hystrix
|
United Kingdom |
Santonian |
Maastrichtian |
Triblastula |
Triblastula utinensis
|
North Sea |
Late Campanian |
Maastrichtian |
Trichodinium |
Trichodinium castanea
|
North Sea |
Early Cretaceous |
Early Campanian |
Trichodinium |
Trichodinium ciliatum
|
England(Yorkshire) |
Late Jurassic |
Early Barremian |
Trichodinium |
Trichodinium speetonense
|
United Kingdom |
Late Barremian |
|
Trithyrodinium |
Trithyrodinium suspectum
|
North Sea |
Late Cenomanian |
Early Maastrichtian |
Tubotuberella |
Tubotuberella apatela
|
United Kingdom |
Ryazanian |
Early Valanginian |
Xenascus |
Xenascus ceratioides
|
North Sea |
Albian |
Maastrichtian |