Orbicularia |
Orbicularia rotunda
|
USSR(Urals) |
Bathonian |
|
Orbicularia |
Orbicularia rotundiformis
|
USSR(Urals) |
Bathonian |
|
Orbicularia |
Orbicularia variabiliformis
|
USSR(Urals) |
Early Bajocian |
|
Orbipatella |
Orbipatella exilis
|
USSR(Urals) |
Callovian |
|
Orbipatella |
Orbipatella glabra
|
USSR(Urals) |
Late Bajocian |
Early Bathonian |
Osmunda |
Osmunda
|
USSR(Urals) |
Early Bajocian |
|
Panucella |
Panucella rotundiformis
|
USSR(Urals) |
Callovian |
|
Patellina |
Patellina exilis
|
USSR(Urals) |
Bajocian |
Early Bathonian |
Patellina |
Patellina exilis
|
USSR(Urals) |
Bathonian |
|
Patellina |
Patellina minor
|
USSR(Urals) |
Bathonian |
Middle Albian |
Patellina |
Patellina patellata
|
USSR(Urals) |
Bajocian |
|
Patellina |
Patellina plicata
|
USSR(Urals) |
Early Triassic |
Keuper |
Patellina |
Patellina plicata
|
USSR(Urals) |
Keuper |
|
Patellina |
Patellina pseudolimbata
|
USSR(Urals) |
Bathonian |
Callovian |
Placulina |
Placulina exilis
|
USSR(Urals) |
Aptian |
|
Placulina |
Placulina fasciata
|
USSR(Urals) |
Early Bajocian |
|
Planorbina |
Planorbina bulbiformis
|
USSR(Urals) |
Early Triassic |
|