Leiosphaeridia |
Leiosphaeridia pellucida
|
USSR |
Late Precambrian |
|
Leiosphaeridia |
Leiosphaeridia pruniformis
|
USSR |
Late Precambrian |
|
Lophosphaeridium |
Lophosphaeridium sp
|
USSR |
Late Precambrian |
|
Nucellosphaeridium |
Nucellosphaeridium sp
|
USSR |
Late Precambrian |
|
Orygmatosphaeridium |
Orygmatosphaeridium flexuosum
|
USSR |
Late Precambrian |
|
Orygmatosphaeridium |
Orygmatosphaeridium induratum
|
USSR |
Late Precambrian |
|
Orygmatosphaeridium |
Orygmatosphaeridium rubiginosum
|
USSR |
Late Precambrian |
|
Pterospermopsimorpha |
Pterospermopsimorpha sp
|
USSR |
Late Precambrian |
|
Stictosphaeridium |
Stictosphaeridium sp
|
USSR |
Late Precambrian |
|
Trematosphaeridium |
Trematosphaeridium arbustus
|
USSR |
Late Precambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
USSR |
Late Precambrian |
|