Margominuscula |
Margominuscula minor
|
USSR(Buryat ASSR) |
Ordovician |
|
Margominuscula |
Margominuscula sp
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Margominuscula |
Margominuscula verrucosa
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Micrhystridium |
Micrhystridium sp
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Micrhystridium |
Micrhystridium sp
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Microconcentrica |
Microconcentrica sp
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Multiplicisphaeridium |
Multiplicisphaeridium cristatum
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Orygmatosphaeridium |
Orygmatosphaeridium sp
|
USSR(Buryat ASSR) |
Silurian |
|
Orygmatosphaeridium |
Orygmatosphaeridium sp
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Proaulopora |
Proaulopora rarissima
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Protosphaeridium |
Protosphaeridium densum
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Protosphaeridium |
Protosphaeridium densum
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Protosphaeridium |
Protosphaeridium gibberosum
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Retusotriletes |
Retusotriletes sp
|
USSR(Buryat ASSR) |
Silurian |
Early Devonian |
Stenozonotriletes |
Stenozonotriletes simplex
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Stenozonotriletes |
Stenozonotriletes sp
|
USSR(Buryat ASSR) |
Early Devonian |
|
Sulcatosphaeridium |
Sulcatosphaeridium marginatum
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |