Micrhystridium |
Micrhystridium pallidum
|
USSR(Russian Platform) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium pusillum
|
USSR(Russian Platform) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium stellatum
|
USSR(Russian Platform) |
Tremadocian |
|
Micrhystridium |
Micrhystridium stellatum
|
USSR(Russian Platform) |
Tremadocian |
|
Micrhystridium |
Micrhystridium tornatum
|
USSR(Russian Platform) |
Cambrian |
Tremadocian |
Microconcentrica |
Microconcentrica aculeata
sp. nov. |
USSR(Russian Platform) |
Tremadocian |
|
Microconcentrica |
Microconcentrica atava
|
USSR(Russian Platform) |
Cambrian |
Tremadocian |
Microconcentrica |
Microconcentrica orbiculata
|
USSR(Russian Platform) |
Cambrian |
Tremadocian |
Microconcentrica |
Microconcentrica typica
|
USSR(Russian Platform) |
Early Cambrian |
|
Ooidium |
Ooidium rossicum
|
USSR(Russian Platform) |
Tremadocian |
|
Orygmatosphaeridium |
Orygmatosphaeridium ruminatum
|
USSR(Russian Platform) |
Tremadocian |
|
Oscillatorites |
Oscillatorites sp
|
USSR(Russian Platform) |
Early Cambrian |
Middle Cambrian |
Protoleiosphaeridium |
Protoleiosphaeridium conglutinatum
|
USSR(Russian Platform) |
Early Cambrian |
|
Protoleiosphaeridium |
Protoleiosphaeridium sp
|
USSR(Russian Platform) |
Early Cambrian |
Middle Cambrian |
Spumiosa |
Spumiosa sp
|
USSR(Russian Platform) |
Early Cambrian |
|
Sulcatosphaeridium |
Sulcatosphaeridium glabrum
sp. nov. |
USSR(Russian Platform) |
Early Cambrian |
|
Sulcatosphaeridium |
Sulcatosphaeridium incrustatum
sp. nov. |
USSR(Russian Platform) |
Middle Cambrian |
|