Margominuscula |
Margominuscula antiqua
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
|
Margominuscula |
Margominuscula rugosa
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
|
Margominuscula |
Margominuscula verrucosa
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
Early Cambrian |
Megasacculina |
Megasacculina atava
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
|
Microconcentrica |
Microconcentrica atava
sp. nov. |
USSR(Russian Platform) |
Early Cambrian |
|
Microconcentrica |
Microconcentrica orbiculata
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
Early Cambrian |
Microconcentrica |
Microconcentrica sp
|
USSR(Russian Platform) |
Late Riphean |
|
Protoarchaeosacculina |
Protoarchaeosacculina
|
USSR(Russian Platform) |
Late Riphean |
|
Protoarchaeosacculina |
Protoarchaeosacculina atava
sp. nov. |
USSR(Russian Platform) |
Late Riphean |
|
Psophosphaera |
Psophosphaera
|
USSR(Russian Platform) |
Late Riphean |
|
Trachydiscina |
Trachydiscina sp
|
USSR(Russian Platform) |
Late Riphean |
|
Triletes |
Triletes sp
|
USSR(Russian Platform) |
Early Cambrian |
|
Ullmannia |
Ullmannia sp
|
USSR(Russian Platform) |
Early Cambrian |
|
Uniferata |
Uniferata
|
USSR(Russian Platform) |
Late Cambrian |
|