Cyclina |
Cyclina pseudolimbata
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Cyclina |
Cyclina pseudolimbata
sp. nov. |
USSR(Omskaya Oblast) |
Early Cretaceous |
|
Cymbellina |
Cymbellina
|
USSR(Omskaya Oblast) |
Early Jurassic |
Middle Jurassic |
Cymbellina |
Cymbellina orbiculata
sp. nov. |
USSR(Urals) |
Middle Jurassic |
Middle Jurassic |
Dilaterella |
Dilaterella
|
USSR(Omskaya Oblast) |
Neocomian |
Aptian |
Dilaterella |
Dilaterella bilaterina
sp. nov. |
USSR(Omskaya Oblast) |
Neocomian |
Aptian |
Dilaterella |
Dilaterella rotundiformis
sp. nov. |
USSR(Ukrainian SSR) |
Early Cretaceous |
|
Dipterella |
Dipterella
|
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Dipterella |
Dipterella alata
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Dipterella |
Dipterella bifurca
sp. nov. |
USSR(Ukrainian SSR) |
Early Jurassic |
|
Dipterella |
Dipterella bifurca
sp. nov. |
USSR(Ukrainian SSR) |
Early Jurassic |
|
Dipterella |
Dipterella bifurca
sp. nov. |
USSR(Ukrainian SSR) |
Late Jurassic |
Early Neocomian |
Dipterella |
Dipterella dipteraeformis
sp. nov. |
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Dipterella |
Dipterella falciformis
sp. nov. |
USSR(Ukrainian SSR) |
Early Cretaceous |
Cenomanian |
Dipterella |
Dipterella falciformis
sp. nov. |
USSR(Ukrainian SSR) |
Early Cretaceous |
Cenomanian |
Dipterella |
Dipterella gamoalata
sp. nov. |
USSR(Ukrainian SSR) |
Late Jurassic |
|
Dipterella |
Dipterella latipes
sp. nov. |
USSR(Ukrainian SSR) |
Early Jurassic |
|