Cyanonema |
Cyanonema sp
|
USSR(Penza) |
Early Riphean |
|
Eomycetopsis |
Eomycetopsis sp
|
USSR(Penza) |
Early Riphean |
|
Leiominuscula |
Leiominuscula minuta
|
USSR(Penza) |
Early Riphean |
|
Leiosphaeridia |
Leiosphaeridia crassa
|
USSR(Penza) |
Riphean |
|
Leiosphaeridia |
Leiosphaeridia minutissima
|
USSR(Penza) |
Late Riphean |
|
Leiosphaeridia |
Leiosphaeridia obsuleta
|
USSR(Penza) |
Early Riphean |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Penza) |
Late Riphean |
|
Nucellosphaeridium |
Nucellosphaeridium sp
|
USSR(Penza) |
Late Riphean |
|
Protosphaeridium |
Protosphaeridium densum
|
USSR(Penza) |
Riphean |
|
Protosphaeridium |
Protosphaeridium scabridum
|
USSR(Penza) |
Early Riphean |
|
Protosphaeridium |
Protosphaeridium sp
|
USSR(Penza) |
Late Riphean |
|
Pterospermella |
Pterospermella simica
|
USSR(Penza) |
Late Riphean |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Penza) |
Late Riphean |
|
Stictosphaeridium |
Stictosphaeridium pectinale
|
USSR(Penza) |
Late Riphean |
|
Synsphaeridium |
Synsphaeridium conglutinatum
|
USSR(Penza) |
Middle Riphean |
|
Synsphaeridium |
Synsphaeridium sorediforme
|
USSR(Penza) |
Late Riphean |
|
Trachyhystrichosphaera |
Trachyhystrichosphaera sp
|
USSR(Penza) |
Late Riphean |
|