Micrhystridium |
Micrhystridium pallidum
|
USSR(Baltic) |
Ordovician |
|
Micrhystridium |
Micrhystridium robustum
|
USSR(Baltic) |
Late Ordovician |
|
Micrhystridium |
Micrhystridium shinetonense
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Micrhystridium |
Micrhystridium spinoglobosum
|
USSR(Baltic) |
Cambrian |
|
Micrhystridium |
Micrhystridium stellatum
|
USSR(Baltic) |
Cambrian |
|
Micrhystridium |
Micrhystridium ternatum
|
USSR(Baltic) |
Ordovician |
|
Micrhystridium |
Micrhystridium vulgare
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Navifusa |
Navifusa sp
|
USSR(Baltic) |
Silurian |
|
Ooidium |
Ooidium guttiforme
|
USSR(Baltic) |
Cambrian |
|
Ooidium |
Ooidium rossicum
|
USSR(Baltic) |
Ordovician |
|
Orbiculus |
Orbiculus balticus
|
USSR(Baltic) |
Middle Cambrian |
|
Orbiculus |
Orbiculus incrustatus
|
USSR(Yaroslav) |
Devonian |
|
Orygmatosphaeridium |
Orygmatosphaeridium flexuosum
|
USSR(Baltic) |
Middle Cambrian |
|
Orygmatosphaeridium |
Orygmatosphaeridium sp
|
USSR(Baltic) |
Late Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium bergstroemii
|
USSR(Baltic) |
Silurian |
|
Phycomycetes |
Phycomycetes
|
USSR(Baltic) |
Ordovician |
|
Polyedryxium |
Polyedryxium sp
|
USSR(Baltic) |
Ordovician |
|