Leiopsophosphaera |
Leiopsophosphaera rugosa
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Leiopsophosphaera |
Leiopsophosphaera minutissima
|
USSR(Buryat ASSR) |
Cambrian |
Early Devonian |
Leiopsophosphaera |
Leiopsophosphaera accreta
|
USSR(Buryat ASSR) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera warsanofiewii
|
USSR(Buryat ASSR) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera laevigata
|
USSR(Buryat ASSR) |
Ordovician |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Trachysphaeridium |
Trachysphaeridium asperatum
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Trachysphaeridium |
Trachysphaeridium minutissimum
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Trachysphaeridium |
Trachysphaeridium sp
|
USSR(Buryat ASSR) |
Ordovician |
|
Trachypsophosphaera |
Trachypsophosphaera asemanta
|
USSR(Buryat ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium rarum
|
USSR(Buryat ASSR) |
Cambrian |
Silurian |
Lophosphaeridium |
Lophosphaeridium parvulum
|
USSR(Buryat ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium citrinum
|
USSR(Buryat ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium baculatum
|
USSR(Buryat ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium pilosum
|
USSR(Buryat ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium sp
|
USSR(Buryat ASSR) |
Cambrian |
Ordovician |
Lophopsophosphaera |
Lophopsophosphaera safes
|
USSR(Buryat ASSR) |
Ordovician |
|