| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Late Proterozoic | Early Cambrian | USSR(Siberia) | Timofeev,B.V. Spores of Proterozoic and Early Paleozoic deposits of eastern Siberia and their stratigraphic significance | 1956 |