Leiosphaeridia |
Leiosphaeridia pellucida
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
Early Cambrian |
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Irkutskaya Oblast) |
Early Ordovician |
Middle Ordovician |
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Siberia) |
Early Ordovician |
Middle Ordovician |
Lophosphaeridium |
Lophosphaeridium semiinvolutum
|
USSR(Siberia) |
Vendian |
|
Lophosphaeridium |
Lophosphaeridium semiinvolutum
|
USSR(Siberia) |
Early Cambrian |
|
Lophosphaeridium |
Lophosphaeridium semiinvolutum
|
USSR(Siberia) |
Early Ordovician |
Middle Ordovician |
Lophosphaeridium |
Lophosphaeridium sp
|
USSR(Siberia) |
Late Proterozoic |
|
Lophosphaeridium |
Lophosphaeridium sp
|
USSR(Siberia) |
Early Cambrian |
Middle Ordovician |
Lophosphaeridium |
Lophosphaeridium sp
|
USSR(Siberia) |
Early Ordovician |
Middle Ordovician |
Lophosphaeridium |
Lophosphaeridium tentativum
|
USSR(Siberia) |
Middle Cambrian |
|
Lophosphaeridium |
Lophosphaeridium tentetium
|
USSR(Siberia) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium sp
|
USSR(Siberia) |
Late Proterozoic |
|
Nucellosphaeridium |
Nucellosphaeridium minor
|
USSR(Siberia) |
Late Proterozoic |
|
Nucellosphaeridium |
Nucellosphaeridium minutum
|
USSR(Irkutskaya Oblast) |
Late Proterozoic |
|
Nucellosphaeridium |
Nucellosphaeridium salebrosum
|
USSR(Siberia) |
Late Proterozoic |
|
Octaedryxium |
Octaedryxium
|
USSR(Siberia) |
Vendian |
|