Protosphaeridium |
Protosphaeridium flexuosum
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium pusillum
|
USSR(Siberia) |
Early Proterozoic |
|
Stictosphaeridium |
Stictosphaeridium sinapticuliferum
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium sp
|
USSR(Siberia) |
Early Proterozoic |
|
Ocridosphaeridium |
Ocridosphaeridium sp
|
USSR(Siberia) |
Early Proterozoic |
Early Riphean |
Orygmatosphaeridium |
Orygmatosphaeridium sp
|
USSR(Siberia) |
Early Proterozoic |
Early Riphean |
Gloeocapsamorpha |
Gloeocapsamorpha sp
|
USSR(Siberia) |
Early Proterozoic |
Early Riphean |
Polyedrosphaeridium |
Polyedrosphaeridium bullatum
|
USSR(Siberia) |
Early Proterozoic |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium densum
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium discum
|
USSR(Siberia) |
Early Proterozoic |
Early Riphean |
Phycomycetes |
Phycomycetes sp
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium ace
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium patelliforme
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium asaphum
|
USSR(Siberia) |
Early Proterozoic |
|
Protosphaeridium |
Protosphaeridium planum
|
USSR(Siberia) |
Early Proterozoic |
|