Trachysphaeridium |
Trachysphaeridium
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Favososphaeridium |
Favososphaeridium bothnicum
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Megasacculina |
Megasacculina
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Leiominuscula |
Leiominuscula
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Leiomargominuscula |
Leiomargominuscula
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Leiomargomassulina |
Leiomargomassulina
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Lophominuscula |
Lophominuscula
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Lophomargomassulina |
Lophomargomassulina
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Polyedrosphaeridium |
Polyedrosphaeridium
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Trematosphaeridium |
Trematosphaeridium kurtunensis
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Archaeodiscina |
Archaeodiscina ovalis
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Archaeodiscina |
Archaeodiscina minor
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Archaeodiscina |
Archaeodiscina prima
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Archaeofavosina |
Archaeofavosina miranda
|
USSR(Buryat ASSR) |
Late Precambrian |
|
Symplassosphaeridium |
Symplassosphaeridium
|
USSR(Buryat ASSR) |
Late Precambrian |
|