Orbicularia |
Orbicularia
|
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia asymmetrica
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia biangulina
sp. nov. |
USSR(Urals) |
Early Cretaceous |
|
Orbicularia |
Orbicularia biangulina
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia biangulina
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia biangulina
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia biangulina
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Orbicularia |
Orbicularia biconvexa
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia biconvexa
|
USSR(Urals) |
Middle Jurassic |
|
Orbicularia |
Orbicularia biconvexa
|
USSR(Kazakh SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia biconvexa
|
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Orbicularia |
Orbicularia biconvexiformis
|
USSR(Ukrainian SSR) |
Late Jurassic |
Middle Jurassic |
Orbicularia |
Orbicularia commersa
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia commersa
sp. nov. |
USSR(Urals) |
Middle Jurassic |
|
Orbicularia |
Orbicularia commersa
sp. nov. |
USSR(Kazakh SSR) |
Middle Jurassic |
|
Orbicularia |
Orbicularia commersa
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Orbicularia |
Orbicularia conformis
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|