Acanthaulax |
Acanthaulax sp
|
Russian Platform |
Ryazanian |
|
Achomosphaera |
Achomosphaera sp
|
Russian Platform |
Kimmeridgian |
Middle Volgian |
Adnatosphaeridium |
Adnatosphaeridium caulleryi
|
Russian Platform |
Callovian |
Kimmeridgian |
Aldorfia |
Aldorfia aldorfensis
|
Russian Platform |
Callovian |
Early Oxfordian |
Aldorfia |
Aldorfia dictyota
|
Russian Platform |
Callovian |
Middle Volgian |
Aldorfia |
Aldorfia dictyota
|
Russian Platform |
Oxfordian |
Middle Volgian |
Aldorfia |
Aldorfia sp
|
Russian Platform |
Middle Callovian |
Kimmeridgian |
Ambonosphaera |
Ambonosphaera staffinensis
|
Russia(Siberia) |
Bathonian |
Callovian |
Ambonosphaera |
Ambonosphaera staffinensis
|
Russian Platform |
Callovian |
Ryazanian |
Apteodinium |
Apteodinium sp
|
Russian Platform |
Callovian |
Middle Volgian |
Atopodinium |
Atopodinium haromense
|
Russia(Siberia) |
Bathonian |
Early Callovian |
Atopodinium |
Atopodinium haromense
|
Russian Platform |
Middle Callovian |
Middle Volgian |
Atopodinium |
Atopodinium prostatum
|
Russia(Siberia) |
Callovian |
|
Atopodinium |
Atopodinium prostatum
|
Russian Platform |
Oxfordian |
|
Atopodinium |
Atopodinium sp
|
Russia(Siberia) |
Callovian |
|
Atopodinium |
Atopodinium sp
|
Russian Platform |
Middle Oxfordian |
Middle Volgian |
Baculatisporites |
Baculatisporites comaumensis
|
Russia(Siberia) |
Late Pliensbachian |
Early Callovian |