Protosphaeridium |
Protosphaeridium laccatum
|
Greenland |
Vendian |
Early Cambrian |
Pterospermopsimorpha |
Pterospermopsimorpha densicoronata
|
Greenland |
Late Riphean |
|
Pterospermopsimorpha |
Pterospermopsimorpha densicoronata
|
Greenland |
Late Riphean |
|
Stictosphaeridium |
Stictosphaeridium sinapticuliferum
|
Greenland |
Late Riphean |
|
Stictosphaeridium |
Stictosphaeridium sp. Vida.,1976
sp. nov. |
Greenland |
Late Riphean |
Vendian |
Stictosphaeridium |
Stictosphaeridium verrucatum
|
Greenland |
Late Riphean |
|
Synsphaeridium |
Synsphaeridium sp. Vida.,1976
sp. nov. |
Greenland |
Late Riphean |
Vendian |
Tasmanites |
Tasmanites variabilis
|
Greenland |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Greenland |
Late Riphean |
|
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Greenland |
Late Riphean |
|
Trachysphaeridium |
Trachysphaeridium leve
|
Greenland |
Late Riphean |
Early Cambrian |
Trachysphaeridium |
Trachysphaeridium sp
|
Greenland |
Late Riphean |
|
Trachysphaeridium |
Trachysphaeridium timofeevii
|
Greenland |
Late Riphean |
|
Trachysphaeridium |
Trachysphaeridium timofeevii
|
Greenland |
Late Riphean |
Early Cambrian |