link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
---|---|---|---|---|---|
details | Middle Cambrian | USSR(Russian Platform) | Andreeva,E.M. Spore and pollen assemblages in Upper Proterozoic and Paleozoic deposits of some Regions of the USSR | 1962 | |
original | Late Cambrian | USSR(Pre-Baltic) | Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance | 1959 |