| original |
Chesterian |
|
Canada(Alberta) |
Staplin,F.L. Upper Mississippian plant spores from the Golata Formation, Alberta, Canada. |
1960 |
| details |
Late Mississippian |
|
Canada(Alberta) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Visean |
|
USSR(Russian Platform) |
Byvsheva,T.V. Spores of the Tournaisian and Visean deposits around the Russian Platform. (In: Atlas of Spores and Pollen of Oil and Gas Bearing Deposits of the Russian and Turonskoi Platform. V.V.Menner and T.V.Byvsheva, editors) |
1985 |