Nucellosphaeridium |
Nucellosphaeridium bellum
|
USSR(Siberia) |
Riphean |
|
Nucellosphaeridium |
Nucellosphaeridium deminatum
|
USSR(Siberia) |
Riphean |
|
Nucellosphaeridium |
Nucellosphaeridium sp
|
USSR(Siberia) |
Riphean |
|
Orygmatosphaeridium |
Orygmatosphaeridium sp
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium ace
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium asaphum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium crispum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium densum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium flexuosum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium gibberosum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium glumaceum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium laccatum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium paleaceum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium papyraceum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium parvulum
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium patelliforme
|
USSR(Siberia) |
Riphean |
|
Protosphaeridium |
Protosphaeridium pusillum
|
USSR(Siberia) |
Riphean |
|