Orbicularia |
Orbicularia cretacea
sp. nov. |
USSR(Ukrainian SSR) |
Albian |
Cenomanian |
Orbicularia |
Orbicularia elgonata
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia gamiformis
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia imperfecta
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Orbicularia |
Orbicularia imperfecta
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia imperfecta
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia latipaeformis
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia pectinella
|
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia pectinella
sp. nov. |
USSR(Kazakh SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia pectinella
|
USSR(Urals) |
Middle Jurassic |
|
Orbicularia |
Orbicularia sinuata
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia variabiliformis
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Orbipatella |
Orbipatella
|
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbipatella |
Orbipatella glabra
sp. nov. |
USSR(Ukrainian SSR) |
Jurassic |
|
Orbipatella |
Orbipatella scutrinaeformis
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Pachytella |
Pachytella
|
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Pachytella |
Pachytella macrura
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|