Octaedryxium |
Octaedryxium truncatum
|
USSR(Siberia) |
Late Proterozoic |
|
Orygmatosphaeridium |
Orygmatosphaeridium
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Paracrassosphaera |
Paracrassosphaera
|
USSR(Siberia) |
Vendian |
Early Cambrian |
Paracrassosphaera |
Paracrassosphaera dedalea
|
USSR(Siberia) |
Late Proterozoic |
|
Paracrassosphaera |
Paracrassosphaera sp
|
USSR(Siberia) |
Late Proterozoic |
|
Polyedrosphaeridium |
Polyedrosphaeridium sp
|
USSR(Siberia) |
Early Cambrian |
|
Polyedryxium |
Polyedryxium sp
|
USSR(Siberia) |
Late Proterozoic |
|
Protosphaeridium |
Protosphaeridium
|
USSR(Siberia) |
Vendian |
Early Cambrian |
Protosphaeridium |
Protosphaeridium flexuosum
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
USSR(Siberia) |
Late Proterozoic |
|
Pterospermopsimorpha |
Pterospermopsimorpha sp
|
USSR(Siberia) |
Late Proterozoic |
|
Quadraditum |
Quadraditum tessella
|
USSR(Siberia) |
Late Proterozoic |
|
Symplassosphaeridium |
Symplassosphaeridium incrustatum
|
USSR(Siberia) |
Early Cambrian |
|
Symplassosphaeridium |
Symplassosphaeridium sp
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Tasmanites |
Tasmanites sp
|
USSR(Siberia) |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Trachysphaeridium |
Trachysphaeridium
|
USSR(Irkutskaya Oblast) |
Early Ordovician |
Middle Ordovician |