Crassosphaera |
Crassosphaera
|
USSR(Siberia) |
Early Pliensbachian |
|
Deunffia |
Deunffia
|
USSR(Siberia) |
Early Pliensbachian |
|
Leiofusa |
Leiofusa spicata
|
USSR(Siberia) |
Early Pliensbachian |
|
Leiofusa |
Leiofusa jurassica
|
USSR(Siberia) |
Pliensbachian |
Bajocian |
Crassosphaera |
Crassosphaera hexagonalis
|
USSR(Siberia) |
Volgian |
|
Leiosphaeridia |
Leiosphaeridia
|
USSR(Siberia) |
Volgian |
|
Pterospermella |
Pterospermella
|
USSR(Siberia) |
Volgian |
|
Pterospermella |
Pterospermella
|
USSR(Siberia) |
Late Volgian |
|
Cymatiosphaera |
Cymatiosphaera
|
USSR(Siberia) |
Late Volgian |
|
Tubotuberella |
Tubotuberella rhombiformis
|
USSR(Siberia) |
Late Volgian |
|
Sirmiodinium |
Sirmiodinium
|
USSR(Siberia) |
Late Volgian |
|
Nannoceratopsis |
Nannoceratopsis
|
USSR(Siberia) |
Late Pliensbachian |
Early Aalenian |
Imbatodinium |
Imbatodinium
|
USSR(Siberia) |
Early Aalenian |
|
Pareodinia |
Pareodinia
|
USSR(Siberia) |
Late Toarcian |
Bathonian |
Pareodinia |
Pareodinia evittii
|
USSR(Siberia) |
Middle Bathonian |
|
Pareodinia |
Pareodinia ceratophora
|
USSR(Siberia) |
Late Bathonian |
Callovian |
Gonyaulacysta |
Gonyaulacysta
|
USSR(Siberia) |
Callovian |
Oxfordian |