Trachysphaeridium |
Trachysphaeridium apertum
|
Sweden |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium apertum
|
Norway |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium apertum
|
USSR(Russian Platform) |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Greenland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Iceland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Finland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Sweden |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Norway |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laminaritum
|
USSR(Russian Platform) |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Greenland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Iceland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Finland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Sweden |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Norway |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium laufeldii
|
USSR(Russian Platform) |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium leve
|
Greenland |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium leve
|
Iceland |
Late Riphean |
Vendian |