Nannoceratopsis |
Nannoceratopsis gracilis
|
Russia(Siberia) |
Late Pliensbachian |
Early Callovian |
Nannoceratopsis |
Nannoceratopsis gracilis
|
Russia(Siberia) |
Bathonian |
Early Callovian |
Nannoceratopsis |
Nannoceratopsis gracilis
|
Russian Platform |
Bathonian |
Middle Bathonian |
Nannoceratopsis |
Nannoceratopsis pellucida
|
Russia(Siberia) |
Callovian |
|
Nannoceratopsis |
Nannoceratopsis pellucida
|
Russian Platform |
Bathonian |
Middle Volgian |
Nannoceratopsis |
Nannoceratopsis ridingii
|
Russia(Siberia) |
Late Toarcian |
|
Nannoceratopsis |
Nannoceratopsis triangulata
|
Russia(Siberia) |
Late Toarcian |
|
Nannoceratopsis |
Nannoceratopsis triceras
|
Russia(Siberia) |
Late Toarcian |
|
Neoraistrickia |
Neoraistrickia gristhorpensis
|
Russia(Siberia) |
Callovian |
|
Occisucysta |
Occisucysta balios
|
Russian Platform |
Volgian |
Middle Volgian |
Oligosphaeridium |
Oligosphaeridium diluculum
|
Russian Platform |
Kimmeridgian |
Middle Volgian |
Oligosphaeridium |
Oligosphaeridium patulum
|
Russian Platform |
Volgian |
Middle Volgian |
Oligosphaeridium |
Oligosphaeridium sp
|
Russian Platform |
Middle Volgian |
|
Paragonyaulacysta |
Paragonyaulacysta retiphragmata
|
Russia(Siberia) |
Bathonian |
Early Callovian |
Paragonyaulacysta |
Paragonyaulacysta retiphragmata
|
Russian Platform |
Bathonian |
Middle Volgian |
Paragonyaulacysta |
Paragonyaulacysta sp
|
Russia(Siberia) |
Callovian |
|
Paragonyaulacysta |
Paragonyaulacysta sp
|
Russian Platform |
Bathonian |
Middle Volgian |