Asteridium |
Asteridium lanatum
|
Poland |
Early Cambrian |
|
Asteridium |
Asteridium tornatum
|
Poland |
Early Cambrian |
|
Calyptothrix |
Calyptothrix alternata
|
USSR(Urals) |
Late Riphean |
|
Chuaria |
Chuaria circularis
|
Sweden |
Late Riphean |
|
Comasphaeridium |
Comasphaeridium agglutinatum
|
Poland |
Early Cambrian |
|
Comasphaeridium |
Comasphaeridium formosum
|
Poland |
Early Cambrian |
|
Fimbriaglomerella |
Fimbriaglomerella membranacea
|
Denmark |
Early Cambrian |
|
Heliconema |
Heliconema turukhanica
|
USSR(Siberia) |
Late Riphean |
|
Leiosphaeridia |
Leiosphaeridia sp.A
sp. nov. |
Arizona |
Late Riphean |
|
Octaedryxium |
Octaedryxium truncatum
|
USSR(Ukrainian SSR) |
Vendian |
|
Palaeogomphosphaeria |
Palaeogomphosphaeria cauriensis
|
Sweden |
Late Riphean |
Vendian |
Palaeolyngbya |
Palaeolyngbya sphaerocephala
|
USSR(Siberia) |
Late Riphean |
|
Pterospermella |
Pterospermella velata
|
Poland |
Early Cambrian |
|
Satka |
Satka sp
|
Montana |
Middle Proterozoic |
|
Skiagia |
Skiagia ornata
|
Sweden |
Early Cambrian |
|
Sphaerocongregus |
Sphaerocongregus variabilis
|
Norway |
Late Riphean |
|
Trachyhystrichosphaera |
Trachyhystrichosphaera aimika
|
USSR(Siberia) |
Late Riphean |
|