Trachysphaeridium |
Trachysphaeridium attenuatum
sp. nov. |
USSR(Krasnoyarsk Kray) |
Ordovician |
|
Trachysphaeridium |
Trachysphaeridium attenuatum
sp. nov. |
USSR(Siberia) |
Arenigian |
|
Trachysphaeridium |
Trachysphaeridium attenuatum
sp. nov. |
USSR(Leningrad) |
Arenigian |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
sp. nov. |
China |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
sp. nov. |
USSR(Russian Platform) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
sp. nov. |
USSR(Russian Platform) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
sp. nov. |
USSR(Siberia) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium sp. Timo.,1966
sp. nov. |
USSR(Estonian SSR) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium sp. Timo.,1966
sp. nov. |
USSR(Vologda) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium sp. Timo.,1966
sp. nov. |
USSR(Ukrainian SSR) |
Early Cambrian |
|
Trachytriletes |
Trachytriletes
|
USSR(Estonian SSR) |
Ordovician |
Silurian |
Trachytriletes |
Trachytriletes
|
USSR(Siberia) |
Ordovician |
Silurian |
Trematosphaeridium |
Trematosphaeridium holtedahlii
sp. nov. |
Norway |
Eocambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
sp. nov. |
USSR(Irkutskaya Oblast) |
Eocambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
sp. nov. |
USSR(Siberia) |
Eocambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
sp. nov. |
China(Inner Mongolia) |
Eocambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
sp. nov. |
USSR(Buryat ASSR) |
Eocambrian |
|