| original |
Scythian |
Anisian |
Canada(British Columbia) |
Jansonius,J. Palynology of Permian and Triassic sediments, Peace River area, Western Canada. |
1962 |
| details |
Permian |
Triassic |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |
| details |
Middle Triassic |
|
Argentina(Chaco) |
Men©ndez,C.A. Palynology of Permian and Triassic strata from South America. |
1979 |
| details |
Middle Triassic |
|
Argentina(Mendoza) |
Jain,R.K. Middle Triassic pollen grains from Minas de Petroles Beds of the Cacheuta Formation (Upper Gondwana) Argentina. |
1968 |
| details |
Dienerian |
Spathian |
Canada(Arctic) |
Fisher,M.J. The Triassic palynofloral Sucession in the Canadian Arctic Archipelago. |
1979 |