Sirmiodinium |
Sirmiodinium grossii
|
Northern Hemisphere |
Callovian |
Kimmeridgian |
Sirmiodinium |
Sirmiodinium oxfordianum
|
Northern Hemisphere |
Oxfordian |
Kimmeridgian |
Stephanelytron |
Stephanelytron caytonense
|
Northern Hemisphere |
Late Oxfordian |
Kimmeridgian |
Stephanelytron |
Stephanelytron redcliffense
|
Northern Hemisphere |
Callovian |
Kimmeridgian |
Stephanelytron |
Stephanelytron scarburghense
|
Northern Hemisphere |
Oxfordian |
|
Surculosphaeridium |
Surculosphaeridium cribrotubiferum
|
Northern Hemisphere |
Callovian |
Early Oxfordian |
Surculosphaeridium |
Surculosphaeridium vestitum
|
Northern Hemisphere |
Callovian |
Kimmeridgian |
Systematophora |
Systematophora areolata
|
Northern Hemisphere |
Oxfordian |
|
Systematophora |
Systematophora orbifera
|
Northern Hemisphere |
Oxfordian |
|
Systematophora |
Systematophora penicillata
|
Northern Hemisphere |
Late Oxfordian |
|
Systematophora |
Systematophora valensii
|
Northern Hemisphere |
Oxfordian |
|
Taeniophora |
Taeniophora filamentosa
|
Northern Hemisphere |
Oxfordian |
|
Taeniophora |
Taeniophora iunctispina
|
Northern Hemisphere |
Oxfordian |
|
Thuledinium |
Thuledinium groenlandicum
|
Northern Hemisphere |
Oxfordian |
Kimmeridgian |
Tubotuberella |
Tubotuberella apatela
|
Northern Hemisphere |
Oxfordian |
Kimmeridgian |
Tubotuberella |
Tubotuberella dangeardii
|
Northern Hemisphere |
Oxfordian |
|
Tubotuberella |
Tubotuberella dangeardii
|
Northern Hemisphere |
Oxfordian |
|