Clavifera |
Clavifera
|
USSR(Moscow) |
Aptian |
|
Clavifera |
Clavifera triplex
|
Nd |
Nd |
|
Gleichenia |
Gleichenia
|
Nd |
Nd |
|
Gleicheniidites |
Gleicheniidites
|
Nd |
Jurassic |
Oligocene |
Gleicheniidites |
Gleicheniidites
|
Nd |
Nd |
|
Gleicheniidites |
Gleicheniidites echinatus
|
Nd |
Nd |
|
Gleicheniidites |
Gleicheniidites peregrinus
|
Nd |
Nd |
|
Gleicheniidites |
Gleicheniidites senonicus
|
Nd |
Nd |
|
Gleicheniidites |
Gleicheniidites tuberculatus
|
USSR(Siberia) |
Nd |
|
Ornamentifera |
Ornamentifera
|
USSR(Urals) |
Albian |
|
Ornamentifera |
Ornamentifera echinata
|
Nd |
Nd |
|
Ornamentifera |
Ornamentifera peregrina
|
Nd |
Nd |
|
Ornamentifera |
Ornamentifera tuberculata
|
Nd |
Nd |
|
Plicifera |
Plicifera
|
USSR(Moscow) |
Aptian |
|
Plicifera |
Plicifera delicata
|
Nd |
Nd |
|