Retectina |
Retectina cristata
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Siliculina |
Siliculina simplicissima
sp. nov. |
USSR(Aktyubinskaya) |
Early Jurassic |
Middle Jurassic |
Aggerotsugella |
Aggerotsugella primitiva
sp. nov. |
USSR(Aktyubinskaya) |
Cretaceous |
|
Aggerotsugella |
Aggerotsugella primitiva
sp. nov. |
USSR(Aktyubinskaya) |
Aptian |
Albian |
Corollina |
Corollina compacta
sp. nov. |
USSR(Aktyubinskaya) |
Early Jurassic |
|
Patellina |
Patellina exilis
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Patellina |
Patellina patellata
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Patellina |
Patellina comatella
sp. nov. |
USSR(Aktyubinskaya) |
Late Triassic |
Early Jurassic |
Patellina |
Patellina plicata
sp. nov. |
USSR(Aktyubinskaya) |
Late Triassic |
Early Jurassic |
Aggerella |
Aggerella conferta
sp. nov. |
USSR(Aktyubinskaya) |
Early Jurassic |
Middle Jurassic |
Aggerella |
Aggerella conferta
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Aggerella |
Aggerella corollaria
sp. nov. |
USSR(Aktyubinskaya) |
Early Jurassic |
|
Bullulina |
Bullulina media
sp. nov. |
USSR(Aktyubinskaya) |
Early Jurassic |
Middle Jurassic |
Trilaterina |
Trilaterina obliqua
sp. nov. |
USSR(Aktyubinskaya) |
Middle Jurassic |
|
Ventosella |
Ventosella spingera
sp. nov. |
USSR(Aktyubinskaya) |
Late Triassic |
Early Jurassic |
Gyrinella |
Gyrinella orbiculata
sp. nov. |
USSR(Kazakh SSR) |
Late Jurassic |
|
Bialina |
Bialina sacculifera
sp. nov. |
USSR(Kazakh SSR) |
Early Cretaceous |
|