Acanthosphaeridium |
Acanthosphaeridium sp
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Acanthotriletes |
Acanthotriletes sp
|
USSR(Buryat ASSR) |
Cambrian |
Early Devonian |
Bacisphaeridium |
Bacisphaeridium sp
|
USSR(Buryat ASSR) |
Silurian |
Early Devonian |
Baltisphaeridium |
Baltisphaeridium crassum
|
USSR(Buryat ASSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium sp
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Brochopsophosphaera |
Brochopsophosphaera diligens
|
USSR(Buryat ASSR) |
Ordovician |
|
Brochopsophosphaera |
Brochopsophosphaera diligens
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Brochopsophosphaera |
Brochopsophosphaera sp
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Brochotriletes |
Brochotriletes diligens
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Brochotriletes |
Brochotriletes sp
|
USSR(Buryat ASSR) |
Silurian |
Early Devonian |
Concentrica |
Concentrica sp
|
USSR(Buryat ASSR) |
Ordovician |
|
Desmochitina |
Desmochitina minor
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Dictyopsophosphaera |
Dictyopsophosphaera polygonia
|
USSR(Buryat ASSR) |
Ordovician |
|
Dictyosphaeridium |
Dictyosphaeridium explicatum
|
USSR(Buryat ASSR) |
Ordovician |
Silurian |
Dictyosphaeridium |
Dictyosphaeridium explicatum
|
USSR(Buryat ASSR) |
Silurian |
|
Dictyosphaeridium |
Dictyosphaeridium interpositum
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |
Dictyosphaeridium |
Dictyosphaeridium polygonia
|
USSR(Buryat ASSR) |
Ordovician |
Early Devonian |